Fully generify and simplify UserType contract

documentation/src/test/java/org/hibernate/userguide/mapping/basic/bitset/BitSetUserType.java

@@ -24,36 +24,36 @@ import org.jboss.logging.Logger;
  * @author Vlad Mihalcea
  */
 //tag::basic-custom-type-BitSetUserType-example[]
-public class BitSetUserType implements UserType<Object> {
+public class BitSetUserType implements UserType<BitSet> {
 
     public static final BitSetUserType INSTANCE = new BitSetUserType();
 
     private static final Logger log = Logger.getLogger(BitSetUserType.class);
 
     @Override
-    public int[] sqlTypes() {
+    public int getSqlType() {
-        return new int[] { Types.VARCHAR };
+        return Types.VARCHAR;
     }
 
     @Override
-    public Class returnedClass() {
+    public Class<BitSet> returnedClass() {
         return BitSet.class;
     }
 
     @Override
-    public boolean equals(Object x, Object y)
+    public boolean equals(BitSet x, BitSet y)
 			throws HibernateException {
         return Objects.equals(x, y);
     }
 
     @Override
-    public int hashCode(Object x)
+    public int hashCode(BitSet x)
 			throws HibernateException {
         return Objects.hashCode(x);
     }
 
     @Override
-    public Object nullSafeGet(ResultSet rs, int position, SharedSessionContractImplementor session, Object owner) throws SQLException {
+    public BitSet nullSafeGet(ResultSet rs, int position, SharedSessionContractImplementor session, Object owner) throws SQLException {
         String columnValue = (String) rs.getObject(position);
         if (rs.wasNull()) {
             columnValue = null;
@@ -65,7 +65,7 @@ public class BitSetUserType implements UserType<Object> {
 
     @Override
     public void nullSafeSet(
-            PreparedStatement st, Object value, int index, SharedSessionContractImplementor session)
+            PreparedStatement st, BitSet value, int index, SharedSessionContractImplementor session)
             throws HibernateException, SQLException {
         if (value == null) {
             log.debugv("Binding null to parameter {0} ",index);
@@ -79,7 +79,7 @@ public class BitSetUserType implements UserType<Object> {
     }
 
     @Override
-    public Object deepCopy(Object value)
+    public BitSet deepCopy(BitSet value)
 			throws HibernateException {
         return value == null ? null :
             BitSet.valueOf(BitSet.class.cast(value).toLongArray());
@@ -91,19 +91,19 @@ public class BitSetUserType implements UserType<Object> {
     }
 
     @Override
-    public Serializable disassemble(Object value)
+    public Serializable disassemble(BitSet value)
 			throws HibernateException {
-        return (BitSet) deepCopy(value);
+        return deepCopy(value);
     }
 
     @Override
-    public Object assemble(Serializable cached, Object owner)
+    public BitSet assemble(Serializable cached, Object owner)
 			throws HibernateException {
-        return deepCopy(cached);
+        return deepCopy( (BitSet) cached );
     }
 
     @Override
-    public Object replace(Object original, Object target, Object owner)
+    public BitSet replace(BitSet original, BitSet target, Object owner)
 			throws HibernateException {
         return deepCopy(original);
     }

hibernate-core/src/main/java/org/hibernate/type/CustomType.java

@@ -134,12 +134,12 @@ public class CustomType<J>
 
 	@Override
 	public boolean isEqual(Object x, Object y) throws HibernateException {
-		return getUserType().equals( x, y );
+		return getUserType().equals( (J) x, (J) y );
 	}
 
 	@Override
 	public int getHashCode(Object x) {
-		return getUserType().hashCode( x);
+		return getUserType().hashCode( (J) x );
 	}
 
 	@Override
@@ -149,7 +149,7 @@ public class CustomType<J>
 
 	@Override
 	public Serializable disassemble(Object value, SharedSessionContractImplementor session, Object owner) {
-		return getUserType().disassemble( value);
+		return getUserType().disassemble( (J) value );
 	}
 
 	@Override
@@ -159,7 +159,7 @@ public class CustomType<J>
 			SharedSessionContractImplementor session,
 			Object owner,
 			Map<Object, Object> copyCache) throws HibernateException {
-		return getUserType().replace( original, target, owner );
+		return getUserType().replace( (J) original, (J) target, owner );
 	}
 
 	@Override
@@ -192,7 +192,7 @@ public class CustomType<J>
 
 	@Override
 	public Object deepCopy(Object value, SessionFactoryImplementor factory) throws HibernateException {
-		return getUserType().deepCopy( value);
+		return getUserType().deepCopy( (J) value );
 	}
 
 	@Override

hibernate-core/src/main/java/org/hibernate/type/EnumType.java

@@ -344,9 +344,9 @@ public class EnumType<T extends Enum<T>>
 	}
 
 	@Override
-	public int[] sqlTypes() {
+	public int getSqlType() {
 		verifyConfigured();
-		return new int[] { enumValueConverter.getJdbcTypeCode() };
+		return enumValueConverter.getJdbcTypeCode();
 	}
 
 	@Override
@@ -355,12 +355,12 @@ public class EnumType<T extends Enum<T>>
 	}
 
 	@Override
-	public boolean equals(Object x, Object y) throws HibernateException {
+	public boolean equals(T x, T y) throws HibernateException {
 		return x == y;
 	}
 
 	@Override
-	public int hashCode(Object x) throws HibernateException {
+	public int hashCode(T x) throws HibernateException {
 		return x == null ? 0 : x.hashCode();
 	}
 
@@ -384,7 +384,7 @@ public class EnumType<T extends Enum<T>>
 	}
 
 	@Override
-	public Object deepCopy(Object value) throws HibernateException {
+	public T deepCopy(T value) throws HibernateException {
 		return value;
 	}
 
@@ -394,17 +394,17 @@ public class EnumType<T extends Enum<T>>
 	}
 
 	@Override
-	public Serializable disassemble(Object value) throws HibernateException {
+	public Serializable disassemble(T value) throws HibernateException {
-		return ( Serializable ) value;
+		return value;
 	}
 
 	@Override
-	public Object assemble(Serializable cached, Object owner) throws HibernateException {
+	public T assemble(Serializable cached, Object owner) throws HibernateException {
-		return cached;
+		return (T) cached;
 	}
 
 	@Override
-	public Object replace(Object original, Object target, Object owner) throws HibernateException {
+	public T replace(T original, T target, Object owner) throws HibernateException {
 		return original;
 	}
 

hibernate-core/src/main/java/org/hibernate/type/internal/UserTypeJavaTypeWrapper.java

@@ -12,7 +12,6 @@ import java.util.Comparator;
 import org.hibernate.SharedSessionContract;
 import org.hibernate.annotations.Immutable;
 import org.hibernate.dialect.Dialect;
-import org.hibernate.engine.jdbc.Size;
 import org.hibernate.type.descriptor.WrapperOptions;
 import org.hibernate.type.descriptor.java.BasicJavaType;
 import org.hibernate.type.descriptor.java.ImmutableMutabilityPlan;
@@ -70,7 +69,7 @@ public class UserTypeJavaTypeWrapper<J> implements BasicJavaType<J> {
 		if ( userType.equals( first, second ) ) {
 			return 0;
 		}
-		return Comparator.comparing( userType::hashCode ).compare( first, second );
+		return Comparator.<J, Integer>comparing( userType::hashCode ).compare( first, second );
 	}
 
 	@Override
@@ -80,7 +79,7 @@ public class UserTypeJavaTypeWrapper<J> implements BasicJavaType<J> {
 
 	@Override
 	public JdbcType getRecommendedJdbcType(JdbcTypeIndicators context) {
-		return context.getTypeConfiguration().getJdbcTypeRegistry().getDescriptor( userType.sqlTypes()[0] );
+		return context.getTypeConfiguration().getJdbcTypeRegistry().getDescriptor( userType.getSqlType() );
 	}
 
 	@Override
@@ -153,8 +152,7 @@ public class UserTypeJavaTypeWrapper<J> implements BasicJavaType<J> {
 
 		@Override
 		public J deepCopy(J value) {
-			//noinspection unchecked
+			return userType.deepCopy( value );
-			return (J) userType.deepCopy( value );
 		}
 
 		@Override
@@ -164,8 +162,7 @@ public class UserTypeJavaTypeWrapper<J> implements BasicJavaType<J> {
 
 		@Override
 		public J assemble(Serializable cached, SharedSessionContract session) {
-			//noinspection unchecked
+			return userType.assemble( cached , session);
-			return (J) userType.disassemble( cached );
 		}
 	}
 }

hibernate-core/src/main/java/org/hibernate/type/internal/UserTypeSqlTypeAdapter.java

@@ -53,7 +53,7 @@ public class UserTypeSqlTypeAdapter<J> implements JdbcType {
 
 	@Override
 	public int getJdbcTypeCode() {
-		return userType.sqlTypes()[0];
+		return userType.getSqlType();
 	}
 
 	@Override
@@ -142,10 +142,10 @@ public class UserTypeSqlTypeAdapter<J> implements JdbcType {
 			}
 
 			if ( extracted == null ) {
-				JdbcExtractingLogging.logNullExtracted( paramIndex, userType.sqlTypes()[0] );
+				JdbcExtractingLogging.logNullExtracted( paramIndex, userType.getSqlType() );
 			}
 			else {
-				JdbcExtractingLogging.logExtracted( paramIndex, userType.sqlTypes()[0], extracted );
+				JdbcExtractingLogging.logExtracted( paramIndex, userType.getSqlType(), extracted );
 			}
 		}
 
@@ -155,10 +155,10 @@ public class UserTypeSqlTypeAdapter<J> implements JdbcType {
 			}
 
 			if ( extracted == null ) {
-				JdbcExtractingLogging.logNullExtracted( paramName, userType.sqlTypes()[0] );
+				JdbcExtractingLogging.logNullExtracted( paramName, userType.getSqlType() );
 			}
 			else {
-				JdbcExtractingLogging.logExtracted( paramName, userType.sqlTypes()[0], extracted );
+				JdbcExtractingLogging.logExtracted( paramName, userType.getSqlType(), extracted );
 			}
 		}
 	}
@@ -174,10 +174,10 @@ public class UserTypeSqlTypeAdapter<J> implements JdbcType {
 		public void bind(PreparedStatement st, J value, int index, WrapperOptions options) throws SQLException {
 			if ( JdbcBindingLogging.TRACE_ENABLED ) {
 				if ( value == null ) {
-					JdbcBindingLogging.logNullBinding( index, userType.sqlTypes()[ 0 ] );
+					JdbcBindingLogging.logNullBinding( index, userType.getSqlType() );
 				}
 				else {
-					JdbcBindingLogging.logBinding( index, userType.sqlTypes()[ 0 ], value );
+					JdbcBindingLogging.logBinding( index, userType.getSqlType(), value );
 				}
 			}
 			userType.nullSafeSet( st, value, index, options.getSession() );

hibernate-core/src/main/java/org/hibernate/usertype/BaseUserTypeSupport.java

@@ -28,8 +28,6 @@ public abstract class BaseUserTypeSupport<T> implements UserType<T> {
 
 	private boolean resolved;
 
-	// cached array wrapping our single type-code
-	private int[] sqlTypes;
 	// cached JDBC extractor and binder
 	private ValueExtractor<T> jdbcValueExtractor;
 	private ValueBinder<T> jdbcValueBinder;
@@ -45,8 +43,6 @@ public abstract class BaseUserTypeSupport<T> implements UserType<T> {
 			this.javaType = javaType;
 			this.jdbcType = jdbcType;
 
-			sqlTypes = new int[] { jdbcType.getJdbcTypeCode() };
-
 			jdbcValueExtractor = jdbcType.getExtractor( javaType );
 			jdbcValueBinder = jdbcType.getBinder( javaType );
 
@@ -65,9 +61,9 @@ public abstract class BaseUserTypeSupport<T> implements UserType<T> {
 	}
 
 	@Override
-	public int[] sqlTypes() {
+	public int getSqlType() {
 		ensureResolved();
-		return sqlTypes;
+		return jdbcType.getDefaultSqlTypeCode();
 	}
 
 	@Override
@@ -76,15 +72,13 @@ public abstract class BaseUserTypeSupport<T> implements UserType<T> {
 	}
 
 	@Override
-	public boolean equals(Object x, Object y) throws HibernateException {
+	public boolean equals(T x, T y) throws HibernateException {
-		//noinspection unchecked
+		return javaType().areEqual( x, y );
-		return javaType().areEqual( (T) x, (T) y );
 	}
 
 	@Override
-	public int hashCode(Object x) throws HibernateException {
+	public int hashCode(T x) throws HibernateException {
-		//noinspection unchecked
+		return javaType().extractHashCode( x );
-		return javaType().extractHashCode( (T) x );
 	}
 
 	@Override
@@ -100,9 +94,8 @@ public abstract class BaseUserTypeSupport<T> implements UserType<T> {
 	}
 
 	@Override
-	public Object deepCopy(Object value) throws HibernateException {
+	public T deepCopy(T value) throws HibernateException {
-		//noinspection unchecked
+		return javaType().getMutabilityPlan().deepCopy( value );
-		return javaType().getMutabilityPlan().deepCopy( (T) value );
 	}
 
 	@Override
@@ -111,18 +104,17 @@ public abstract class BaseUserTypeSupport<T> implements UserType<T> {
 	}
 
 	@Override
-	public Serializable disassemble(Object value) throws HibernateException {
+	public Serializable disassemble(T value) throws HibernateException {
-		//noinspection unchecked
+		return javaType().getMutabilityPlan().disassemble( value, null );
-		return javaType().getMutabilityPlan().disassemble( (T) value, null );
 	}
 
 	@Override
-	public Object assemble(Serializable cached, Object owner) throws HibernateException {
+	public T assemble(Serializable cached, Object owner) throws HibernateException {
 		return javaType().getMutabilityPlan().assemble( cached, null );
 	}
 
 	@Override
-	public Object replace(Object original, Object target, Object owner) throws HibernateException {
+	public T replace(T original, T target, Object owner) throws HibernateException {
 		return deepCopy( original );
 	}
 }

hibernate-core/src/main/java/org/hibernate/usertype/StaticUserTypeSupport.java

@@ -17,6 +17,7 @@ import org.hibernate.metamodel.model.convert.spi.BasicValueConverter;
 import org.hibernate.type.descriptor.ValueBinder;
 import org.hibernate.type.descriptor.ValueExtractor;
 import org.hibernate.type.descriptor.java.BasicJavaType;
+import org.hibernate.type.descriptor.java.JavaType;
 import org.hibernate.type.descriptor.java.MutabilityPlan;
 import org.hibernate.type.descriptor.jdbc.JdbcType;
 
@@ -24,46 +25,49 @@ import org.hibernate.type.descriptor.jdbc.JdbcType;
  * @author Steve Ebersole
  */
 public class StaticUserTypeSupport<T> implements UserType<T> {
-	private final BasicJavaType javaType;
+	private final BasicJavaType<T> javaType;
 	private final JdbcType jdbcType;
-	private final MutabilityPlan mutabilityPlan;
+	private final MutabilityPlan<T> mutabilityPlan;
-	private final BasicValueConverter valueConverter;
+	private final BasicValueConverter<T, Object> valueConverter;
 
-	private final int[] sqlTypes;
+	private final ValueExtractor<Object> jdbcValueExtractor;
-	private ValueExtractor jdbcValueExtractor;
+	private final ValueBinder<Object> jdbcValueBinder;
-	private ValueBinder jdbcValueBinder;
 
-	public StaticUserTypeSupport(BasicJavaType javaType, JdbcType jdbcType) {
+	public StaticUserTypeSupport(BasicJavaType<T> javaType, JdbcType jdbcType) {
 		this( javaType, jdbcType, javaType.getMutabilityPlan() );
 	}
 
 	public StaticUserTypeSupport(
-			BasicJavaType javaType,
+			BasicJavaType<T> javaType,
 			JdbcType jdbcType,
-			MutabilityPlan mutabilityPlan) {
+			MutabilityPlan<T> mutabilityPlan) {
 		this( javaType, jdbcType, mutabilityPlan, null );
 	}
 
 	public StaticUserTypeSupport(
-			BasicJavaType javaType,
+			BasicJavaType<T> javaType,
 			JdbcType jdbcType,
-			BasicValueConverter valueConverter) {
+			BasicValueConverter<T, Object> valueConverter) {
 		this( javaType, jdbcType, javaType.getMutabilityPlan(), valueConverter );
 	}
 
-	public StaticUserTypeSupport(BasicJavaType javaType, JdbcType jdbcType, MutabilityPlan mutabilityPlan, BasicValueConverter valueConverter) {
+	public StaticUserTypeSupport(
+			BasicJavaType<T> javaType,
+			JdbcType jdbcType,
+			MutabilityPlan<T> mutabilityPlan,
+			BasicValueConverter<T, Object> valueConverter) {
 		this.javaType = javaType;
 		this.jdbcType = jdbcType;
 		this.mutabilityPlan = mutabilityPlan;
 		this.valueConverter = valueConverter;
 
-		this.sqlTypes = new int[] { jdbcType.getJdbcTypeCode() };
+		//noinspection unchecked
-
+		this.jdbcValueExtractor = jdbcType.getExtractor( (JavaType<Object>) javaType );
-		this.jdbcValueExtractor = jdbcType.getExtractor( javaType );
+		//noinspection unchecked
-		this.jdbcValueBinder = jdbcType.getBinder( javaType );
+		this.jdbcValueBinder = jdbcType.getBinder( (JavaType<Object>) javaType );
 	}
 
-	public BasicJavaType getJavaType() {
+	public BasicJavaType<T> getJavaType() {
 		return javaType;
 	}
 
@@ -71,25 +75,25 @@ public class StaticUserTypeSupport<T> implements UserType<T> {
 		return jdbcType;
 	}
 
-	public MutabilityPlan getMutabilityPlan() {
+	public MutabilityPlan<T> getMutabilityPlan() {
 		return mutabilityPlan;
 	}
 
-	public BasicValueConverter getValueConverter() {
+	public BasicValueConverter<T, Object> getValueConverter() {
 		return valueConverter;
 	}
 
-	public ValueExtractor getJdbcValueExtractor() {
+	public ValueExtractor<Object> getJdbcValueExtractor() {
 		return jdbcValueExtractor;
 	}
 
-	public ValueBinder getJdbcValueBinder() {
+	public ValueBinder<Object> getJdbcValueBinder() {
 		return jdbcValueBinder;
 	}
 
 	@Override
-	public int[] sqlTypes() {
+	public int getSqlType() {
-		return sqlTypes;
+		return jdbcType.getDefaultSqlTypeCode();
 	}
 
 	@Override
@@ -98,34 +102,32 @@ public class StaticUserTypeSupport<T> implements UserType<T> {
 	}
 
 	@Override
-	public boolean equals(Object x, Object y) throws HibernateException {
+	public boolean equals(T x, T y) throws HibernateException {
-		//noinspection unchecked
+		return javaType.areEqual( x, y );
-		return javaType.areEqual( (T) x, (T) y );
 	}
 
 	@Override
-	public int hashCode(Object x) throws HibernateException {
+	public int hashCode(T x) throws HibernateException {
-		//noinspection unchecked
+		return javaType.extractHashCode( x );
-		return javaType.extractHashCode( (T) x );
 	}
 
 	@Override
-	@SuppressWarnings("unchecked")
 	public T nullSafeGet(ResultSet rs, int position, SharedSessionContractImplementor session, Object owner) throws SQLException {
 		final Object extracted = jdbcValueExtractor.extract( rs, position, session );
 
 		if ( valueConverter != null ) {
-			return (T) valueConverter.toDomainValue( extracted );
+			return valueConverter.toDomainValue( extracted );
 		}
 
+		//noinspection unchecked
 		return (T) extracted;
 	}
 
 	@Override
 	public void nullSafeSet(PreparedStatement st, T value, int index, SharedSessionContractImplementor session) throws SQLException {
-		final T valueToBind;
+		final Object valueToBind;
 		if ( valueConverter != null ) {
-			valueToBind = (T) valueConverter.toRelationalValue( value );
+			valueToBind = valueConverter.toRelationalValue( value );
 		}
 		else {
 			valueToBind = value;
@@ -135,9 +137,8 @@ public class StaticUserTypeSupport<T> implements UserType<T> {
 	}
 
 	@Override
-	public Object deepCopy(Object value) throws HibernateException {
+	public T deepCopy(T value) throws HibernateException {
-		//noinspection unchecked
+		return javaType.getMutabilityPlan().deepCopy( value );
-		return javaType.getMutabilityPlan().deepCopy( (T) value );
 	}
 
 	@Override
@@ -146,18 +147,17 @@ public class StaticUserTypeSupport<T> implements UserType<T> {
 	}
 
 	@Override
-	public Serializable disassemble(Object value) throws HibernateException {
+	public Serializable disassemble(T value) throws HibernateException {
-		//noinspection unchecked
+		return javaType.getMutabilityPlan().disassemble( value, null );
-		return javaType.getMutabilityPlan().disassemble( (T) value, null );
 	}
 
 	@Override
-	public Object assemble(Serializable cached, Object owner) throws HibernateException {
+	public T assemble(Serializable cached, Object owner) throws HibernateException {
 		return javaType.getMutabilityPlan().assemble( cached, null );
 	}
 
 	@Override
-	public Object replace(Object original, Object target, Object owner) throws HibernateException {
+	public T replace(T original, T target, Object owner) throws HibernateException {
 		return deepCopy( original );
 	}
 

hibernate-core/src/main/java/org/hibernate/usertype/UserType.java

@@ -53,13 +53,13 @@ import org.hibernate.type.descriptor.jdbc.JdbcType;
 public interface UserType<J> {
 
 	/**
-	 * Return the SQL type codes for the columns mapped by this type. The
+	 * Return the SQL type code for the column mapped by this type. The
-	 * codes are generally defined on {@code java.sql.Types}, but could
+	 * codes are generally defined on {@code org.hibernate.type.SqlTypes}, but could
 	 * be database-specific codes
 	 *
-	 * @see java.sql.Types
+	 * @see org.hibernate.type.SqlTypes
 	 */
-	int[] sqlTypes();
+	int getSqlType();
 
 	/**
 	 * The class returned by {@code nullSafeGet()}.
@@ -72,12 +72,12 @@ public interface UserType<J> {
 	 * Compare two instances of the class mapped by this type for persistence "equality".
 	 * Equality of the persistent state.
 	 */
-	boolean equals(Object x, Object y);
+	boolean equals(J x, J y);
 
 	/**
 	 * Get a hashcode for the instance, consistent with persistence "equality"
 	 */
-	int hashCode(Object x);
+	int hashCode(J x);
 
 	/**
 	 * Retrieve an instance of the mapped class from a JDBC resultset. Implementors
@@ -100,7 +100,7 @@ public interface UserType<J> {
 	 * @param value the object to be cloned, which may be null
 	 * @return Object a copy
 	 */
-	Object deepCopy(Object value);
+	J deepCopy(J value);
 
 	/**
 	 * Are objects of this type mutable?
@@ -118,7 +118,7 @@ public interface UserType<J> {
 	 * @param value the object to be cached
 	 * @return a cacheable representation of the object
 	 */
-	Serializable disassemble(Object value);
+	Serializable disassemble(J value);
 
 	/**
 	 * Reconstruct an object from the cacheable representation. At the very least this
@@ -128,7 +128,7 @@ public interface UserType<J> {
 	 * @param owner the owner of the cached object
 	 * @return a reconstructed object from the cacheable representation
 	 */
-	Object assemble(Serializable cached, Object owner);
+	J assemble(Serializable cached, Object owner);
 
 	/**
 	 * During merge, replace the existing (target) value in the entity we are merging to
@@ -142,7 +142,7 @@ public interface UserType<J> {
 	 *
 	 * @return the value to be merged
 	 */
-	Object replace(Object detached, Object managed, Object owner);
+	J replace(J detached, J managed, Object owner);
 
 	default long getDefaultSqlLength(Dialect dialect, JdbcType jdbcType) {
 		return Size.DEFAULT_LENGTH;

hibernate-core/src/test/java/org/hibernate/orm/test/annotations/embeddables/DollarValueUserType.java

@@ -19,11 +19,11 @@ import org.hibernate.usertype.UserType;
 /**
  * @author Chris Pheby
  */
-public class DollarValueUserType implements UserType {
+public class DollarValueUserType implements UserType<DollarValue> {
 
 	@Override
-	public int[] sqlTypes() {
+	public int getSqlType() {
-		return new int[] {Types.BIGINT};
+		return Types.BIGINT;
 	}
 
 	@Override
@@ -32,37 +32,31 @@ public class DollarValueUserType implements UserType {
 	}
 
 	@Override
-	public boolean equals(Object x, Object y) throws HibernateException {
+	public boolean equals(DollarValue x, DollarValue y) throws HibernateException {
-		if (!(x instanceof DollarValue) || !(y instanceof DollarValue)) {
+		return x.getAmount().equals(y.getAmount());
-			throw new HibernateException("Expected DollarValue");
-		}
-		return ((DollarValue)x).getAmount().equals(((DollarValue)y).getAmount());
 	}
 
 	@Override
-	public int hashCode(Object x) throws HibernateException {
+	public int hashCode(DollarValue x) throws HibernateException {
-		if (!(x instanceof DollarValue)) {
+		return x.getAmount().hashCode();
-			throw new HibernateException("Expected DollarValue");
-		}
-		return ((DollarValue)x).getAmount().hashCode();
 	}
 
 	@Override
-	public Object nullSafeGet(ResultSet rs, int position, SharedSessionContractImplementor session, Object owner) throws SQLException {
+	public DollarValue nullSafeGet(ResultSet rs, int position, SharedSessionContractImplementor session, Object owner) throws SQLException {
 		return new DollarValue( rs.getBigDecimal( position ) );
 	}
 
 	@Override
 	public void nullSafeSet(
 			PreparedStatement st,
-			Object value,
+			DollarValue value,
 			int index,
 			SharedSessionContractImplementor session) throws HibernateException, SQLException {
-		st.setBigDecimal(index, ((DollarValue)value).getAmount());
+		st.setBigDecimal(index, value.getAmount());
 	}
 
 	@Override
-	public Object deepCopy(Object value) throws HibernateException {
+	public DollarValue deepCopy(DollarValue value) throws HibernateException {
 		return new DollarValue();
 	}
 
@@ -72,18 +66,18 @@ public class DollarValueUserType implements UserType {
 	}
 
 	@Override
-	public Serializable disassemble(Object value) throws HibernateException {
+	public Serializable disassemble(DollarValue value) throws HibernateException {
 		return null;
 	}
 
 	@Override
-	public Object assemble(Serializable cached, Object owner)
+	public DollarValue assemble(Serializable cached, Object owner)
 			throws HibernateException {
 		return null;
 	}
 
 	@Override
-	public Object replace(Object original, Object target, Object owner)
+	public DollarValue replace(DollarValue original, DollarValue target, Object owner)
 			throws HibernateException {
 		return null;
 	}

hibernate-core/src/test/java/org/hibernate/orm/test/annotations/embeddables/MyDateUserType.java

@@ -19,11 +19,11 @@ import org.hibernate.usertype.UserType;
 /**
  * @author Chris Pheby
  */
-public class MyDateUserType implements UserType {
+public class MyDateUserType implements UserType<MyDate> {
 
 	@Override
-	public int[] sqlTypes() {
+	public int getSqlType() {
-		return new int[] {Types.DATE};
+		return Types.DATE;
 	}
 
 	@Override
@@ -32,37 +32,31 @@ public class MyDateUserType implements UserType {
 	}
 
 	@Override
-	public boolean equals(Object x, Object y) throws HibernateException {
+	public boolean equals(MyDate x, MyDate y) throws HibernateException {
-		if (!(x instanceof MyDate) || !(y instanceof MyDate)) {
+		return x.getDate().equals(y.getDate());
-			throw new HibernateException("Expected MyDate");
-		}
-		return ((MyDate)x).getDate().equals(((MyDate)y).getDate());
 	}
 
 	@Override
-	public int hashCode(Object x) throws HibernateException {
+	public int hashCode(MyDate x) throws HibernateException {
-		if (!(x instanceof MyDate)) {
+		return x.getDate().hashCode();
-			throw new HibernateException("Expected MyDate");
-		}
-		return ((MyDate)x).getDate().hashCode();
 	}
 
 	@Override
-	public Object nullSafeGet(ResultSet rs, int position, SharedSessionContractImplementor session, Object owner) throws SQLException {
+	public MyDate nullSafeGet(ResultSet rs, int position, SharedSessionContractImplementor session, Object owner) throws SQLException {
 		return new MyDate( rs.getDate( position ) );
 	}
 
 	@Override
 	public void nullSafeSet(
 			PreparedStatement st,
-			Object value,
+			MyDate value,
 			int index,
 			SharedSessionContractImplementor session) throws HibernateException, SQLException {
-		st.setDate(index, new java.sql.Date(((MyDate)value).getDate().getTime()));
+		st.setDate(index, new java.sql.Date(value.getDate().getTime()));
 	}
 
 	@Override
-	public Object deepCopy(Object value) throws HibernateException {
+	public MyDate deepCopy(MyDate value) throws HibernateException {
 		MyDate result = new MyDate();
 
 		return result;
@@ -74,18 +68,18 @@ public class MyDateUserType implements UserType {
 	}
 
 	@Override
-	public Serializable disassemble(Object value) throws HibernateException {
+	public Serializable disassemble(MyDate value) throws HibernateException {
 		return null;
 	}
 
 	@Override
-	public Object assemble(Serializable cached, Object owner)
+	public MyDate assemble(Serializable cached, Object owner)
 			throws HibernateException {
 		return null;
 	}
 
 	@Override
-	public Object replace(Object original, Object target, Object owner)
+	public MyDate replace(MyDate original, MyDate target, Object owner)
 			throws HibernateException {
 		return null;
 	}

hibernate-core/src/test/java/org/hibernate/orm/test/annotations/enumerated/EnumeratedSmokeTest.java

@@ -76,14 +76,13 @@ public class EnumeratedSmokeTest extends BaseUnitTestCase {
 		assertThat( customType.getUserType(), instanceOf( org.hibernate.type.EnumType.class ) );
 		final org.hibernate.type.EnumType hibernateMappingEnumType = (org.hibernate.type.EnumType) customType.getUserType();
 		assertThat( hibernateMappingEnumType.isOrdinal(), is(expectedJpaEnumType==EnumType.ORDINAL) );
-		assertThat( hibernateMappingEnumType.sqlTypes().length, is(1) );
 		final int expectedJdbcTypeCode = jdbcRegistry.getDescriptor(
 				expectedJpaEnumType == EnumType.ORDINAL ?
 						Types.TINYINT :
 						Types.VARCHAR
 		).getJdbcTypeCode();
 		assertThat(
-				hibernateMappingEnumType.sqlTypes()[0],
+				hibernateMappingEnumType.getSqlType(),
 				is( expectedJdbcTypeCode )
 		);
 	}

hibernate-core/src/test/java/org/hibernate/orm/test/annotations/enumerated/custom_types/FirstLetterType.java

@@ -21,8 +21,8 @@ import org.hibernate.orm.test.annotations.enumerated.enums.FirstLetter;
 public class FirstLetterType extends org.hibernate.type.EnumType<FirstLetter> {
 
 	@Override
-	public int[] sqlTypes() {
+	public int getSqlType() {
-		return new int[] { Types.VARCHAR };
+		return Types.VARCHAR;
 	}
 
 	@Override
@@ -38,7 +38,7 @@ public class FirstLetterType extends org.hibernate.type.EnumType<FirstLetter> {
 	public void nullSafeSet(PreparedStatement st, FirstLetter value, int index, SharedSessionContractImplementor session)
 			throws HibernateException, SQLException {
 		if ( value == null ) {
-			st.setNull( index, sqlTypes()[0] );
+			st.setNull( index, getSqlType() );
 		}
 		else {
 			String enumString = value.name();

hibernate-core/src/test/java/org/hibernate/orm/test/annotations/enumerated/custom_types/LastNumberType.java

@@ -21,8 +21,8 @@ import org.hibernate.orm.test.annotations.enumerated.enums.LastNumber;
 public class LastNumberType extends org.hibernate.type.EnumType<LastNumber> {
 
 	@Override
-	public int[] sqlTypes() {
+	public int getSqlType() {
-		return new int[] { Types.VARCHAR };
+		return Types.VARCHAR;
 	}
 
 	@Override
@@ -38,7 +38,7 @@ public class LastNumberType extends org.hibernate.type.EnumType<LastNumber> {
 	public void nullSafeSet(PreparedStatement st, LastNumber value, int index, SharedSessionContractImplementor session)
 			throws HibernateException, SQLException {
 		if ( value == null ) {
-			st.setNull( index, sqlTypes()[0] );
+			st.setNull( index, getSqlType() );
 		}
 		else {
 			String enumString = value.name();

hibernate-core/src/test/java/org/hibernate/orm/test/annotations/enumerated/mappedSuperclass/EnumeratedWithMappedSuperclassTest.java

@@ -73,14 +73,14 @@ public class EnumeratedWithMappedSuperclassTest extends BaseUnitTestCase {
 		final Property natureProperty = addressLevelBinding.getProperty( "nature" );
 		CustomType<Object> customType = assertTyping( CustomType.class, natureProperty.getType() );
 		EnumType enumType = assertTyping( EnumType.class, customType.getUserType() );
-		assertEquals( Types.VARCHAR, enumType.sqlTypes()[0] );
+		assertEquals( Types.VARCHAR, enumType.getSqlType() );
 
 		SessionFactoryImplementor sf = (SessionFactoryImplementor) metadata.buildSessionFactory();
 		try {
             EntityPersister p = sf.getRuntimeMetamodels().getMappingMetamodel().getEntityDescriptor(AddressLevel.class.getName());
 			CustomType<Object> runtimeType = assertTyping( CustomType.class, p.getPropertyType( "nature" ) );
 			EnumType runtimeEnumType = assertTyping( EnumType.class, runtimeType.getUserType() );
-			assertEquals( Types.VARCHAR, runtimeEnumType.sqlTypes()[0] );
+			assertEquals( Types.VARCHAR, runtimeEnumType.getSqlType() );
 		}
 		finally {
 			sf.close();

hibernate-core/src/test/java/org/hibernate/orm/test/annotations/generics/StateType.java

@@ -22,21 +22,21 @@ import org.hibernate.usertype.UserType;
  * @author Emmanuel Bernard
  */
 public class StateType implements UserType<State> {
-	public int[] sqlTypes() {
+
-		return new int[] {
+	@Override
-			Types.INTEGER
+	public int getSqlType() {
-		};
+		return Types.INTEGER;
 	}
 
-	public Class returnedClass() {
+	public Class<State> returnedClass() {
 		return State.class;
 	}
 
-	public boolean equals(Object x, Object y) throws HibernateException {
+	public boolean equals(State x, State y) throws HibernateException {
 		return x == y;
 	}
 
-	public int hashCode(Object x) throws HibernateException {
+	public int hashCode(State x) throws HibernateException {
 		return x.hashCode();
 	}
 
@@ -57,7 +57,7 @@ public class StateType implements UserType<State> {
 		}
 	}
 
-	public Object deepCopy(Object value) throws HibernateException {
+	public State deepCopy(State value) throws HibernateException {
 		return value;
 	}
 
@@ -65,15 +65,15 @@ public class StateType implements UserType<State> {
 		return false;
 	}
 
-	public Serializable disassemble(Object value) throws HibernateException {
+	public Serializable disassemble(State value) throws HibernateException {
-		return (Serializable) value;
+		return value;
 	}
 
-	public Object assemble(Serializable cached, Object owner) throws HibernateException {
+	public State assemble(Serializable cached, Object owner) throws HibernateException {
-		return cached;
+		return (State) cached;
 	}
 
-	public Object replace(Object original, Object target, Object owner) throws HibernateException {
+	public State replace(State original, State target, Object owner) throws HibernateException {
 		return original;
 	}
 }

hibernate-core/src/test/java/org/hibernate/orm/test/annotations/type/dynamicparameterized/MyStringType.java

@@ -106,8 +106,8 @@ public class MyStringType implements UserType<String>, DynamicParameterizedType
 	}
 
 	@Override
-	public int[] sqlTypes() {
+	public int getSqlType() {
-		return new int[] { Types.VARCHAR };
+		return Types.VARCHAR;
 	}
 
 	@Override
@@ -116,17 +116,17 @@ public class MyStringType implements UserType<String>, DynamicParameterizedType
 	}
 
 	@Override
-	public boolean equals(Object x, Object y) {
+	public boolean equals(String x, String y) {
 		return ( x == null && y == null ) || ( x != null && y != null && x.equals( y ) );
 	}
 
 	@Override
-	public int hashCode(Object x) {
+	public int hashCode(String x) {
 		return x.hashCode();
 	}
 
 	@Override
-	public Object deepCopy(Object value) {
+	public String deepCopy(String value) {
 		return value;
 	}
 
@@ -136,17 +136,17 @@ public class MyStringType implements UserType<String>, DynamicParameterizedType
 	}
 
 	@Override
-	public Serializable disassemble(Object value) {
+	public Serializable disassemble(String value) {
-		return (Integer) value;
+		return value;
 	}
 
 	@Override
-	public Object assemble(Serializable cached, Object owner) {
+	public String assemble(Serializable cached, Object owner) {
-		return cached;
+		return (String) cached;
 	}
 
 	@Override
-	public Object replace(Object original, Object target, Object owner) {
+	public String replace(String original, String target, Object owner) {
 		return original;
 	}
 }

hibernate-core/src/test/java/org/hibernate/orm/test/hql/ClassificationType.java

@@ -15,7 +15,6 @@ import java.sql.Types;
 
 import org.hibernate.HibernateException;
 import org.hibernate.engine.spi.SharedSessionContractImplementor;
-import org.hibernate.type.StandardBasicTypes;
 import org.hibernate.type.descriptor.ValueExtractor;
 import org.hibernate.type.descriptor.WrapperOptions;
 import org.hibernate.usertype.EnhancedUserType;
@@ -32,17 +31,17 @@ import org.hibernate.usertype.EnhancedUserType;
 public class ClassificationType implements EnhancedUserType<Classification>, ValueExtractor<Classification> {
 
 	@Override
-	public int[] sqlTypes() {
+	public int getSqlType() {
-		return new int[] { Types.TINYINT };
+		return Types.TINYINT;
 	}
 
 	@Override
-	public Class returnedClass() {
+	public Class<Classification> returnedClass() {
 		return Classification.class;
 	}
 
 	@Override
-	public boolean equals(Object x, Object y) throws HibernateException {
+	public boolean equals(Classification x, Classification y) throws HibernateException {
 		if ( x == null && y == null ) {
 			return false;
 		}
@@ -55,7 +54,7 @@ public class ClassificationType implements EnhancedUserType<Classification>, Val
 	}
 
 	@Override
-	public int hashCode(Object x) throws HibernateException {
+	public int hashCode(Classification x) throws HibernateException {
 		return x.hashCode();
 	}
 
@@ -79,7 +78,7 @@ public class ClassificationType implements EnhancedUserType<Classification>, Val
 	}
 
 	@Override
-	public Object deepCopy(Object value) throws HibernateException {
+	public Classification deepCopy(Classification value) throws HibernateException {
 		return value;
 	}
 
@@ -89,17 +88,17 @@ public class ClassificationType implements EnhancedUserType<Classification>, Val
 	}
 
 	@Override
-	public Serializable disassemble(Object value) throws HibernateException {
+	public Serializable disassemble(Classification value) throws HibernateException {
 		return ( Classification ) value;
 	}
 
 	@Override
-	public Object assemble(Serializable cached, Object owner) throws HibernateException {
+	public Classification assemble(Serializable cached, Object owner) throws HibernateException {
-		return cached;
+		return (Classification) cached;
 	}
 
 	@Override
-	public Object replace(Object original, Object target, Object owner) throws HibernateException {
+	public Classification replace(Classification original, Classification target, Object owner) throws HibernateException {
 		return original;
 	}
 

hibernate-core/src/test/java/org/hibernate/orm/test/id/usertype/UserTypeComparableIdTest.java

@@ -125,8 +125,8 @@ public class UserTypeComparableIdTest {
 	public static class CustomIdType implements UserType<CustomId>, Comparator<CustomId> {
 
 		@Override
-		public int[] sqlTypes() {
+		public int getSqlType() {
-			return new int[] { Types.BIGINT };
+			return Types.BIGINT;
 		}
 
 		@Override
@@ -162,17 +162,17 @@ public class UserTypeComparableIdTest {
 		}
 
 		@Override
-		public boolean equals(Object x, Object y) throws HibernateException {
+		public boolean equals(CustomId x, CustomId y) throws HibernateException {
 			return x.equals( y );
 		}
 
 		@Override
-		public int hashCode(Object x) throws HibernateException {
+		public int hashCode(CustomId x) throws HibernateException {
 			return x.hashCode();
 		}
 
 		@Override
-		public Object deepCopy(Object value) throws HibernateException {
+		public CustomId deepCopy(CustomId value) throws HibernateException {
 			return value;
 		}
 
@@ -182,17 +182,17 @@ public class UserTypeComparableIdTest {
 		}
 
 		@Override
-		public Serializable disassemble(Object value) throws HibernateException {
+		public Serializable disassemble(CustomId value) throws HibernateException {
-			return (Serializable) value;
+			return value;
 		}
 
 		@Override
-		public Object assemble(Serializable cached, Object owner) throws HibernateException {
+		public CustomId assemble(Serializable cached, Object owner) throws HibernateException {
-			return cached;
+			return (CustomId) cached;
 		}
 
 		@Override
-		public Object replace(Object original, Object target, Object owner) throws HibernateException {
+		public CustomId replace(CustomId original, CustomId target, Object owner) throws HibernateException {
 			return original;
 		}
 	}

hibernate-core/src/test/java/org/hibernate/orm/test/id/usertype/UserTypeNonComparableIdTest.java

@@ -112,8 +112,8 @@ public class UserTypeNonComparableIdTest {
 	public static class CustomIdType implements UserType<CustomId> {
 
 		@Override
-		public int[] sqlTypes() {
+		public int getSqlType() {
-			return new int[] { Types.BIGINT };
+			return Types.BIGINT;
 		}
 
 		@Override
@@ -139,22 +139,22 @@ public class UserTypeNonComparableIdTest {
 		}
 
 		@Override
-		public Class returnedClass() {
+		public Class<CustomId> returnedClass() {
 			return CustomId.class;
 		}
 
 		@Override
-		public boolean equals(Object x, Object y) throws HibernateException {
+		public boolean equals(CustomId x, CustomId y) throws HibernateException {
 			return x.equals( y );
 		}
 
 		@Override
-		public int hashCode(Object x) throws HibernateException {
+		public int hashCode(CustomId x) throws HibernateException {
 			return x.hashCode();
 		}
 
 		@Override
-		public Object deepCopy(Object value) throws HibernateException {
+		public CustomId deepCopy(CustomId value) throws HibernateException {
 			return value;
 		}
 
@@ -164,17 +164,17 @@ public class UserTypeNonComparableIdTest {
 		}
 
 		@Override
-		public Serializable disassemble(Object value) throws HibernateException {
+		public Serializable disassemble(CustomId value) throws HibernateException {
-			return (Serializable) value;
+			return value;
 		}
 
 		@Override
-		public Object assemble(Serializable cached, Object owner) throws HibernateException {
+		public CustomId assemble(Serializable cached, Object owner) throws HibernateException {
-			return cached;
+			return (CustomId) cached;
 		}
 
 		@Override
-		public Object replace(Object original, Object target, Object owner) throws HibernateException {
+		public CustomId replace(CustomId original, CustomId target, Object owner) throws HibernateException {
 			return original;
 		}
 	}

hibernate-core/src/test/java/org/hibernate/orm/test/jpa/query/QueryParametersValidationTest.java

@@ -113,8 +113,8 @@ public class QueryParametersValidationTest extends BaseEntityManagerFunctionalTe
 	public static class BooleanUserType implements UserType<Boolean> {
 
 		@Override
-		public int[] sqlTypes() {
+		public int getSqlType() {
-			return new int[] { Types.CHAR };
+			return Types.CHAR;
 		}
 
 		@Override
@@ -123,12 +123,12 @@ public class QueryParametersValidationTest extends BaseEntityManagerFunctionalTe
 		}
 
 		@Override
-		public boolean equals(Object x, Object y) throws HibernateException {
+		public boolean equals(Boolean x, Boolean y) throws HibernateException {
 			return Objects.equals( x, y);
 		}
 
 		@Override
-		public int hashCode(Object x) throws HibernateException {
+		public int hashCode(Boolean x) throws HibernateException {
 			return Objects.hashCode(x);
 		}
 
@@ -147,7 +147,7 @@ public class QueryParametersValidationTest extends BaseEntityManagerFunctionalTe
 		}
 
 		@Override
-		public Object deepCopy(Object value) throws HibernateException {
+		public Boolean deepCopy(Boolean value) throws HibernateException {
 			return value;
 		}
 
@@ -157,17 +157,17 @@ public class QueryParametersValidationTest extends BaseEntityManagerFunctionalTe
 		}
 
 		@Override
-		public Serializable disassemble(Object value) throws HibernateException {
+		public Serializable disassemble(Boolean value) throws HibernateException {
 			return null;
 		}
 
 		@Override
-		public Object assemble(Serializable cached, Object owner) throws HibernateException {
+		public Boolean assemble(Serializable cached, Object owner) throws HibernateException {
 			return null;
 		}
 
 		@Override
-		public Object replace(Object original, Object target, Object owner) throws HibernateException {
+		public Boolean replace(Boolean original, Boolean target, Object owner) throws HibernateException {
 			return null;
 		}
 	}

hibernate-core/src/test/java/org/hibernate/orm/test/jpa/query/TypedValueParametersTest.java

@@ -10,6 +10,7 @@ import java.io.Serializable;
 import java.sql.PreparedStatement;
 import java.sql.ResultSet;
 import java.sql.SQLException;
+import java.sql.Types;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
@@ -20,6 +21,7 @@ import org.hibernate.engine.spi.SessionFactoryImplementor;
 import org.hibernate.engine.spi.SharedSessionContractImplementor;
 import org.hibernate.query.TypedParameterValue;
 import org.hibernate.type.CustomType;
+import org.hibernate.type.SqlTypes;
 import org.hibernate.usertype.UserType;
 
 import org.hibernate.testing.orm.junit.EntityManagerFactoryScope;
@@ -139,12 +141,10 @@ public class TypedValueParametersTest {
 	public static class TagUserType implements UserType<List<String>> {
 		public static final TagUserType INSTANCE = new TagUserType();
 
-		private final int SQLTYPE = java.sql.Types.VARCHAR;
-
 		@Override
 		public void nullSafeSet(PreparedStatement statement, List<String> list, int index, SharedSessionContractImplementor session) throws HibernateException, SQLException {
 			if ( list == null ) {
-				statement.setNull(index, SQLTYPE);
+				statement.setNull( index, SqlTypes.VARCHAR );
 			}
 			else {
 				StringBuilder sb = new StringBuilder();
@@ -183,8 +183,10 @@ public class TypedValueParametersTest {
 			return list;
 		}
 
-		public int[] sqlTypes() {
+
-			return new int[]{SQLTYPE};
+		@Override
+		public int getSqlType() {
+			return Types.VARCHAR;
 		}
 
 		@Override
@@ -194,28 +196,28 @@ public class TypedValueParametersTest {
 		}
 
 		@Override
-		public Object assemble(final Serializable cached, final Object owner) throws HibernateException {
+		public List<String> assemble(final Serializable cached, final Object owner) throws HibernateException {
-			return cached;
+			return (List<String>) cached;
 		}
 
 		@Override
 		@SuppressWarnings("unchecked")
-		public Object deepCopy(final Object o) throws HibernateException {
+		public List<String> deepCopy(final List<String> o) throws HibernateException {
-			return o == null ? null : new ArrayList<>((List<String>) o);
+			return o == null ? null : new ArrayList<>( o );
 		}
 
 		@Override
-		public Serializable disassemble(final Object o) throws HibernateException {
+		public Serializable disassemble(final List<String> o) throws HibernateException {
 			return (Serializable) o;
 		}
 
 		@Override
-		public boolean equals(final Object x, final Object y) throws HibernateException {
+		public boolean equals(final List<String> x, final List<String> y) throws HibernateException {
 			return x == null ? y == null : x.equals(y);
 		}
 
 		@Override
-		public int hashCode(final Object o) throws HibernateException {
+		public int hashCode(final List<String> o) throws HibernateException {
 			return o == null ? 0 : o.hashCode();
 		}
 
@@ -225,7 +227,7 @@ public class TypedValueParametersTest {
 		}
 
 		@Override
-		public Object replace(final Object original, final Object target, final Object owner) throws HibernateException {
+		public List<String> replace(final List<String> original, final List<String> target, final Object owner) throws HibernateException {
 			return original;
 		}
 

hibernate-core/src/test/java/org/hibernate/orm/test/mapping/usertypes/EnumUserType.java

@@ -19,15 +19,15 @@ import org.hibernate.engine.spi.SharedSessionContractImplementor;
 import org.hibernate.usertype.ParameterizedType;
 import org.hibernate.usertype.UserType;
 
-public class EnumUserType implements UserType, ParameterizedType {
+public class EnumUserType<T extends Enum<T>> implements UserType<T>, ParameterizedType {
 
-	private Class clazz = null;
+	private Class<T> clazz = null;
 
-	public static EnumUserType createInstance(Class clazz) {
+	public static <T extends Enum<T>> EnumUserType<T> createInstance(Class<T> clazz) {
 		if ( !clazz.isEnum() ) {
 			throw new IllegalArgumentException( "Parameter has to be an enum-class" );
 		}
-		EnumUserType that = new EnumUserType();
+		EnumUserType<T> that = new EnumUserType<>();
 		Properties p = new Properties();
 		p.setProperty( "enumClassName", clazz.getName() );
 		that.setParameterValues( p );
@@ -41,7 +41,8 @@ public class EnumUserType implements UserType, ParameterizedType {
 		}
 
 		try {
-			this.clazz = Class.forName( enumClassName );
+			//noinspection unchecked
+			this.clazz = (Class<T>) Class.forName( enumClassName );
 		}
 		catch (ClassNotFoundException e) {
 			throw new MappingException( "enumClass " + enumClassName + " not found", e );
@@ -51,18 +52,17 @@ public class EnumUserType implements UserType, ParameterizedType {
 		}
 	}
 
-	private static final int[] SQL_TYPES = {Types.CHAR};
+	@Override
-
+	public int getSqlType() {
-	public int[] sqlTypes() {
+		return Types.CHAR;
-		return SQL_TYPES;
 	}
 
-	public Class returnedClass() {
+	public Class<T> returnedClass() {
 		return clazz;
 	}
 
 	@Override
-	public Object nullSafeGet(ResultSet rs, int position, SharedSessionContractImplementor session, Object owner) throws SQLException {
+	public T nullSafeGet(ResultSet rs, int position, SharedSessionContractImplementor session, Object owner) throws SQLException {
 		final String name = rs.getString( position );
 		if ( rs.wasNull() ) {
 			return null;
@@ -72,24 +72,23 @@ public class EnumUserType implements UserType, ParameterizedType {
 
 	public void nullSafeSet(PreparedStatement preparedStatement, Object value, int index)
 			throws HibernateException, SQLException {
-		if ( null == value ) {
-			preparedStatement.setNull( index, Types.VARCHAR );
-		}
-		else {
-			preparedStatement.setString( index, ( (Enum) value ).name() );
-		}
 	}
 
 	@Override
 	public void nullSafeSet(
 			PreparedStatement preparedStatement,
-			Object value,
+			T value,
 			int index,
 			SharedSessionContractImplementor session) throws HibernateException, SQLException {
-		nullSafeSet( preparedStatement, value, index );
+		if ( null == value ) {
+			preparedStatement.setNull( index, Types.VARCHAR );
+		}
+		else {
+			preparedStatement.setString( index, value.name() );
+		}
 	}
 
-	public Object deepCopy(Object value) throws HibernateException {
+	public T deepCopy(T value) throws HibernateException {
 		return value;
 	}
 
@@ -97,23 +96,24 @@ public class EnumUserType implements UserType, ParameterizedType {
 		return false;
 	}
 
-	public Object assemble(Serializable cached, Object owner) throws HibernateException {
+	public T assemble(Serializable cached, Object owner) throws HibernateException {
-		return cached;
+		//noinspection unchecked
+		return (T) cached;
 	}
 
-	public Serializable disassemble(Object value) throws HibernateException {
+	public Serializable disassemble(T value) throws HibernateException {
-		return (Serializable) value;
+		return value;
 	}
 
-	public Object replace(Object original, Object target, Object owner) throws HibernateException {
+	public T replace(T original, T target, Object owner) throws HibernateException {
 		return original;
 	}
 
-	public int hashCode(Object x) throws HibernateException {
+	public int hashCode(T x) throws HibernateException {
 		return x.hashCode();
 	}
 
-	public boolean equals(Object x, Object y) throws HibernateException {
+	public boolean equals(T x, T y) throws HibernateException {
 		if ( x == y ) {
 			return true;
 		}

hibernate-core/src/test/java/org/hibernate/orm/test/rowid/RowIdType.java

@@ -21,13 +21,14 @@ import org.hibernate.usertype.UserType;
 /**
  * @author Gavin King
  */
-public class RowIdType implements UserType {
+public class RowIdType implements UserType<Object>{
 
-	public int[] sqlTypes() {
+	@Override
-		return new int[] { Types.JAVA_OBJECT };
+	public int getSqlType() {
+		return Types.JAVA_OBJECT;
 	}
 
-	public Class returnedClass() {
+	public Class<Object> returnedClass() {
 		return Object.class;
 	}
 

hibernate-core/src/test/java/org/hibernate/orm/test/type/BasicTypeRegistryTest.java

@@ -10,6 +10,7 @@ import java.io.Serializable;
 import java.sql.PreparedStatement;
 import java.sql.ResultSet;
 import java.sql.SQLException;
+import java.sql.Types;
 import java.util.UUID;
 
 import org.hibernate.HibernateException;
@@ -117,15 +118,15 @@ public class BasicTypeRegistryTest extends BaseUnitTestCase {
 		}
 	}
 
-	public static class TotallyIrrelevantUserType implements UserType {
+	public static class TotallyIrrelevantUserType implements UserType<Object> {
 
 		@Override
-		public int[] sqlTypes() {
+		public int getSqlType() {
-			return new int[0];
+			return Types.VARCHAR;
 		}
 
 		@Override
-		public Class returnedClass() {
+		public Class<Object> returnedClass() {
 			return null;
 		}
 

hibernate-core/src/test/java/org/hibernate/orm/test/type/contributor/ArrayType.java

@@ -37,8 +37,8 @@ public class ArrayType implements UserType<Array>, BindableType<Array> {
     }
 
     @Override
-    public int[] sqlTypes() {
+    public int getSqlType() {
-        return new int[] { jdbcType.getJdbcTypeCode() };
+        return jdbcType.getJdbcTypeCode();
     }
 
     @Override
@@ -47,13 +47,13 @@ public class ArrayType implements UserType<Array>, BindableType<Array> {
     }
 
     @Override
-    public boolean equals(Object x, Object y) throws HibernateException {
+    public boolean equals(Array x, Array y) throws HibernateException {
-        return javaType.areEqual( (Array) x, (Array) y );
+        return javaType.areEqual( x, y );
     }
 
     @Override
-    public int hashCode(Object x) throws HibernateException {
+    public int hashCode(Array x) throws HibernateException {
-        return javaType.extractHashCode( (Array) x );
+        return javaType.extractHashCode( x );
     }
 
     @Override
@@ -68,8 +68,8 @@ public class ArrayType implements UserType<Array>, BindableType<Array> {
     }
 
     @Override
-    public Object deepCopy(Object value) throws HibernateException {
+    public Array deepCopy(Array value) throws HibernateException {
-        return ArrayMutabilityPlan.INSTANCE.deepCopy( (Array) value );
+        return ArrayMutabilityPlan.INSTANCE.deepCopy( value );
     }
 
     @Override
@@ -78,17 +78,17 @@ public class ArrayType implements UserType<Array>, BindableType<Array> {
     }
 
     @Override
-    public Serializable disassemble(Object value) throws HibernateException {
+    public Serializable disassemble(Array value) throws HibernateException {
-        return ArrayMutabilityPlan.INSTANCE.disassemble( (Array) value, null );
+        return ArrayMutabilityPlan.INSTANCE.disassemble( value, null );
     }
 
     @Override
-    public Object assemble(Serializable cached, Object owner) throws HibernateException {
+    public Array assemble(Serializable cached, Object owner) throws HibernateException {
         return ArrayMutabilityPlan.INSTANCE.assemble( cached, null );
     }
 
     @Override
-    public Object replace(Object original, Object target, Object owner) throws HibernateException {
+    public Array replace(Array original, Array target, Object owner) throws HibernateException {
         return null;
     }
 }

hibernate-core/src/test/java/org/hibernate/orm/test/type/contributor/usertype/StringWrapperUserType.java

@@ -29,8 +29,8 @@ public class StringWrapperUserType implements UserType<StringWrapper> {
     private static final Logger log = Logger.getLogger( StringWrapperUserType.class );
 
     @Override
-    public int[] sqlTypes() {
+    public int getSqlType() {
-        return new int[] { Types.VARCHAR };
+        return Types.VARCHAR;
     }
 
     @Override
@@ -39,13 +39,13 @@ public class StringWrapperUserType implements UserType<StringWrapper> {
     }
 
     @Override
-    public boolean equals(Object x, Object y)
+    public boolean equals(StringWrapper x, StringWrapper y)
 			throws HibernateException {
         return Objects.equals( x, y );
     }
 
     @Override
-    public int hashCode(Object x)
+    public int hashCode(StringWrapper x)
 			throws HibernateException {
         return Objects.hashCode( x );
     }
@@ -66,7 +66,7 @@ public class StringWrapperUserType implements UserType<StringWrapper> {
             st.setNull( index, Types.VARCHAR );
         }
         else {
-            String stringValue = toString( (StringWrapper) value );
+            String stringValue = toString( value );
             log.debugv("Binding {0} to parameter {1} ", stringValue, index);
             st.setString( index, stringValue );
         }
@@ -83,7 +83,7 @@ public class StringWrapperUserType implements UserType<StringWrapper> {
     }
 
     @Override
-    public Object deepCopy(Object value)
+    public StringWrapper deepCopy(StringWrapper value)
 			throws HibernateException {
         return value;
     }
@@ -94,19 +94,19 @@ public class StringWrapperUserType implements UserType<StringWrapper> {
     }
 
     @Override
-    public Serializable disassemble(Object value)
+    public Serializable disassemble(StringWrapper value)
 			throws HibernateException {
-        return (StringWrapper) deepCopy( value );
+        return deepCopy( value );
     }
 
     @Override
-    public Object assemble(Serializable cached, Object owner)
+    public StringWrapper assemble(Serializable cached, Object owner)
 			throws HibernateException {
-        return deepCopy( cached );
+        return deepCopy( (StringWrapper) cached );
     }
 
     @Override
-    public Object replace(Object original, Object target, Object owner)
+    public StringWrapper replace(StringWrapper original, StringWrapper target, Object owner)
 			throws HibernateException {
         return deepCopy( original );
     }

hibernate-core/src/test/java/org/hibernate/orm/test/typeparameters/DefaultValueIntegerType.java

@@ -24,20 +24,21 @@ import org.jboss.logging.Logger;
 /**
  * @author Michi
  */
-public class DefaultValueIntegerType implements UserType, ParameterizedType, Serializable {
+public class DefaultValueIntegerType implements UserType<Integer>, ParameterizedType, Serializable {
 	private static final Logger log = Logger.getLogger( DefaultValueIntegerType.class );
 
 	private Integer defaultValue;
 
-	public int[] sqlTypes() {
+	@Override
-		return new int[] {Types.INTEGER};
+	public int getSqlType() {
+		return Types.INTEGER;
 	}
 
 	public Class returnedClass() {
 		return int.class;
 	}
 
-	public boolean equals(Object x, Object y) throws HibernateException {
+	public boolean equals(Integer x, Integer y) throws HibernateException {
 		if ( x == y ) {
 			return true;
 		}
@@ -48,13 +49,13 @@ public class DefaultValueIntegerType implements UserType, ParameterizedType, Ser
 	}
 
 	@Override
-	public Object nullSafeGet(ResultSet rs, int position, SharedSessionContractImplementor session, Object owner) throws SQLException {
+	public Integer nullSafeGet(ResultSet rs, int position, SharedSessionContractImplementor session, Object owner) throws SQLException {
 		Number result = (Number) rs.getObject( position );
 		return result == null ? defaultValue : Integer.valueOf( result.intValue() );
 	}
 
 	@Override
-	public void nullSafeSet(PreparedStatement st, Object value, int index, SharedSessionContractImplementor session)
+	public void nullSafeSet(PreparedStatement st, Integer value, int index, SharedSessionContractImplementor session)
 			throws HibernateException, SQLException {
 		if ( value == null || defaultValue.equals( value ) ) {
 			log.trace( "binding null to parameter: " + index );
@@ -62,32 +63,32 @@ public class DefaultValueIntegerType implements UserType, ParameterizedType, Ser
 		}
 		else {
 			log.trace( "binding " + value + " to parameter: " + index );
-			st.setInt( index, ( (Integer) value ).intValue() );
+			st.setInt( index, value );
 		}
 	}
 
-	public Object deepCopy(Object value) throws HibernateException {
+	public Integer deepCopy(Integer value) throws HibernateException {
-		return new Integer( ( (Integer) value ).intValue() );
+		return value;
 	}
 
 	public boolean isMutable() {
 		return false;
 	}
 
-	public int hashCode(Object x) throws HibernateException {
+	public int hashCode(Integer x) throws HibernateException {
 		return x.hashCode();
 	}
 
-	public Object assemble(Serializable cached, Object owner)
+	public Integer assemble(Serializable cached, Object owner)
 			throws HibernateException {
-		return cached;
+		return (Integer) cached;
 	}
 
-	public Serializable disassemble(Object value) throws HibernateException {
+	public Serializable disassemble(Integer value) throws HibernateException {
-		return (Serializable) value;
+		return value;
 	}
 
-	public Object replace(Object original, Object target, Object owner)
+	public Integer replace(Integer original, Integer target, Object owner)
 			throws HibernateException {
 		return original;
 	}

hibernate-envers/src/main/java/org/hibernate/envers/internal/entities/RevisionTypeType.java

@@ -23,23 +23,21 @@ import org.hibernate.usertype.UserType;
  *
  * @author Adam Warski (adam at warski dot org)
  */
-public class RevisionTypeType implements UserType, Serializable {
+public class RevisionTypeType implements UserType<RevisionType>, Serializable {
 	private static final long serialVersionUID = -1053201518229282688L;
 
-	private static final int[] SQL_TYPES = {Types.TINYINT};
-
 	@Override
-	public int[] sqlTypes() {
+	public int getSqlType() {
-		return SQL_TYPES;
+		return Types.TINYINT;
 	}
 
 	@Override
-	public Class returnedClass() {
+	public Class<RevisionType> returnedClass() {
 		return RevisionType.class;
 	}
 
 	@Override
-	public Object nullSafeGet(ResultSet rs, int position, SharedSessionContractImplementor session, Object owner) throws SQLException {
+	public RevisionType nullSafeGet(ResultSet rs, int position, SharedSessionContractImplementor session, Object owner) throws SQLException {
 		byte byteValue = rs.getByte( position );
 		if ( rs.wasNull() ) {
 			return null;
@@ -48,7 +46,7 @@ public class RevisionTypeType implements UserType, Serializable {
 	}
 
 	@Override
-	public void nullSafeSet(PreparedStatement preparedStatement, Object value, int index, SharedSessionContractImplementor session)
+	public void nullSafeSet(PreparedStatement preparedStatement, RevisionType value, int index, SharedSessionContractImplementor session)
 			throws HibernateException, SQLException {
 		if ( value == null ) {
 			preparedStatement.setNull( index, Types.TINYINT );
@@ -59,7 +57,7 @@ public class RevisionTypeType implements UserType, Serializable {
 	}
 
 	@Override
-	public Object deepCopy(Object value) throws HibernateException {
+	public RevisionType deepCopy(RevisionType value) throws HibernateException {
 		return value;
 	}
 
@@ -69,27 +67,27 @@ public class RevisionTypeType implements UserType, Serializable {
 	}
 
 	@Override
-	public Object assemble(Serializable cached, Object owner) throws HibernateException {
+	public RevisionType assemble(Serializable cached, Object owner) throws HibernateException {
-		return cached;
+		return (RevisionType) cached;
 	}
 
 	@Override
-	public Serializable disassemble(Object value) throws HibernateException {
+	public Serializable disassemble(RevisionType value) throws HibernateException {
-		return (Serializable) value;
+		return value;
 	}
 
 	@Override
-	public Object replace(Object original, Object target, Object owner) throws HibernateException {
+	public RevisionType replace(RevisionType original, RevisionType target, Object owner) throws HibernateException {
 		return original;
 	}
 
 	@Override
-	public int hashCode(Object x) throws HibernateException {
+	public int hashCode(RevisionType x) throws HibernateException {
 		return x.hashCode();
 	}
 
 	@Override
-	public boolean equals(Object x, Object y) throws HibernateException {
+	public boolean equals(RevisionType x, RevisionType y) throws HibernateException {
 		return Objects.equals( x, y );
 	}
 }

hibernate-envers/src/test/java/org/hibernate/orm/test/envers/entities/customtype/ParametrizedTestUserType.java

@@ -24,7 +24,6 @@ import org.hibernate.usertype.UserType;
  * @author Adam Warski (adam at warski dot org)
  */
 public class ParametrizedTestUserType implements UserType<String>, ParameterizedType {
-	private static final int[] TYPES = new int[] {Types.VARCHAR};
 
 	private String param1;
 	private String param2;
@@ -58,23 +57,24 @@ public class ParametrizedTestUserType implements UserType<String>, Parameterized
 				.bind( st, value, index, session );
 	}
 
-	public int[] sqlTypes() {
+	@Override
-		return TYPES;
+	public int getSqlType() {
+		return Types.VARCHAR;
 	}
 
-	public Object assemble(Serializable cached, Object owner) throws HibernateException {
+	public String assemble(Serializable cached, Object owner) throws HibernateException {
-		return cached;
+		return (String) cached;
 	}
 
-	public Object deepCopy(Object value) throws HibernateException {
+	public String deepCopy(String value) throws HibernateException {
 		return value;
 	}
 
-	public Serializable disassemble(Object value) throws HibernateException {
+	public Serializable disassemble(String value) throws HibernateException {
-		return (Serializable) value;
+		return value;
 	}
 
-	public boolean equals(Object x, Object y) throws HibernateException {
+	public boolean equals(String x, String y) throws HibernateException {
 		//noinspection ObjectEquality
 		if ( x == y ) {
 			return true;
@@ -87,7 +87,7 @@ public class ParametrizedTestUserType implements UserType<String>, Parameterized
 		return x.equals( y );
 	}
 
-	public int hashCode(Object x) throws HibernateException {
+	public int hashCode(String x) throws HibernateException {
 		return x.hashCode();
 	}
 
@@ -95,7 +95,7 @@ public class ParametrizedTestUserType implements UserType<String>, Parameterized
 		return false;
 	}
 
-	public Object replace(Object original, Object target, Object owner) throws HibernateException {
+	public String replace(String original, String target, Object owner) throws HibernateException {
 		return original;
 	}
 }

hibernate-envers/src/test/java/org/hibernate/orm/test/envers/entities/ids/CustomEnumUserType.java

@@ -20,17 +20,17 @@ import org.hibernate.usertype.UserType;
  * @author Slawek Garwol (slawekgarwol at gmail dot com)
  */
 public class CustomEnumUserType implements UserType<CustomEnum> {
-	private static final int[] SQL_TYPES = {Types.VARCHAR};
 
-	public int[] sqlTypes() {
+	@Override
-		return SQL_TYPES;
+	public int getSqlType() {
+		return Types.VARCHAR;
 	}
 
-	public Class returnedClass() {
+	public Class<CustomEnum> returnedClass() {
 		return CustomEnum.class;
 	}
 
-	public boolean equals(Object x, Object y) throws HibernateException {
+	public boolean equals(CustomEnum x, CustomEnum y) throws HibernateException {
 		if ( x == y ) {
 			return true;
 		}
@@ -40,7 +40,7 @@ public class CustomEnumUserType implements UserType<CustomEnum> {
 		return x.equals( y );
 	}
 
-	public int hashCode(Object x) throws HibernateException {
+	public int hashCode(CustomEnum x) throws HibernateException {
 		return (x == null) ? 0 : x.hashCode();
 	}
 
@@ -63,7 +63,7 @@ public class CustomEnumUserType implements UserType<CustomEnum> {
 		}
 	}
 
-	public Object deepCopy(Object value) throws HibernateException {
+	public CustomEnum deepCopy(CustomEnum value) throws HibernateException {
 		return value;
 	}
 
@@ -71,15 +71,15 @@ public class CustomEnumUserType implements UserType<CustomEnum> {
 		return false;
 	}
 
-	public Serializable disassemble(Object value) throws HibernateException {
+	public Serializable disassemble(CustomEnum value) throws HibernateException {
-		return (Serializable) value;
+		return value;
 	}
 
-	public Object assemble(Serializable cached, Object owner) throws HibernateException {
+	public CustomEnum assemble(Serializable cached, Object owner) throws HibernateException {
-		return cached;
+		return (CustomEnum) cached;
 	}
 
-	public Object replace(Object original, Object target, Object owner) throws HibernateException {
+	public CustomEnum replace(CustomEnum original, CustomEnum target, Object owner) throws HibernateException {
 		return original;
 	}
 }

hibernate-envers/src/test/java/org/hibernate/orm/test/envers/integration/components/dynamic/AgeType.java

@@ -16,13 +16,11 @@ import org.hibernate.HibernateException;
 import org.hibernate.engine.spi.SharedSessionContractImplementor;
 import org.hibernate.usertype.UserType;
 
-public class AgeType implements UserType {
+public class AgeType implements UserType<Age> {
 
 	@Override
-	public int[] sqlTypes() {
+	public int getSqlType() {
-		return new int[] {
+		return Types.INTEGER;
-				Types.INTEGER
-		};
 	}
 
 	@Override
@@ -31,29 +29,29 @@ public class AgeType implements UserType {
 	}
 
 	@Override
-	public boolean equals(Object x, Object y) throws HibernateException {
+	public boolean equals(Age x, Age y) throws HibernateException {
 		return x != null ? x.equals( y ) : y == null;
 	}
 
 	@Override
-	public int hashCode(Object x) throws HibernateException {
+	public int hashCode(Age x) throws HibernateException {
 		return x != null ? x.hashCode() : 1;
 	}
 
 	@Override
-	public Object nullSafeGet(ResultSet rs, int position, SharedSessionContractImplementor session, Object owner) throws SQLException {
+	public Age nullSafeGet(ResultSet rs, int position, SharedSessionContractImplementor session, Object owner) throws SQLException {
 		return new Age( rs.getInt( position ) );
 	}
 
 	@Override
-	public void nullSafeSet(PreparedStatement st, Object value, int index, SharedSessionContractImplementor session)
+	public void nullSafeSet(PreparedStatement st, Age value, int index, SharedSessionContractImplementor session)
 			throws HibernateException, SQLException {
-		st.setInt( index, ( (Age) value ).getAgeInYears() );
+		st.setInt( index, value.getAgeInYears() );
 	}
 
 	@Override
-	public Object deepCopy(Object value) throws HibernateException {
+	public Age deepCopy(Age value) throws HibernateException {
-		return new Age( ( (Age) value ).getAgeInYears() );
+		return new Age( value.getAgeInYears() );
 	}
 
 	@Override
@@ -62,17 +60,17 @@ public class AgeType implements UserType {
 	}
 
 	@Override
-	public Serializable disassemble(Object value) throws HibernateException {
+	public Serializable disassemble(Age value) throws HibernateException {
 		return null;
 	}
 
 	@Override
-	public Object assemble(Serializable cached, Object owner) throws HibernateException {
+	public Age assemble(Serializable cached, Object owner) throws HibernateException {
 		return null;
 	}
 
 	@Override
-	public Object replace(Object original, Object target, Object owner) throws HibernateException {
+	public Age replace(Age original, Age target, Object owner) throws HibernateException {
 		return null;
 	}
 }

tooling/metamodel-generator/src/test/java/org/hibernate/jpamodelgen/test/collectionbasictype/CommaDelimitedStringMapJavaType.java

@@ -16,39 +16,40 @@ import org.hibernate.type.descriptor.java.MutableMutabilityPlan;
 /**
  * @author Vlad Mihalcea
  */
-public class CommaDelimitedStringMapJavaType extends AbstractClassJavaType<Map> {
+public class CommaDelimitedStringMapJavaType extends AbstractClassJavaType<Map<String, String>> {
 
 	public static final String DELIMITER = ",";
 
 	public CommaDelimitedStringMapJavaType() {
+		//noinspection unchecked
 		super(
-            Map.class,
+				(Class<? extends Map<String, String>>) (Class<?>) Map.class,
-            new MutableMutabilityPlan<Map>() {
+				new MutableMutabilityPlan<>() {
 					@Override
-                protected Map deepCopyNotNull(Map value) {
+					protected Map<String, String> deepCopyNotNull(Map<String, String> value) {
-                    return new HashMap( value );
+						return new HashMap<>( value );
 					}
 				}
 		);
 	}
 
 	@Override
-    public String toString(Map value) {
+	public String toString(Map<String, String> value) {
 		return null;
 	}
 
 	@Override
-    public Map fromString(CharSequence string) {
+	public Map<String, String> fromString(CharSequence string) {
 		return null;
 	}
 
 	@Override
-    public <X> X unwrap(Map value, Class<X> type, WrapperOptions options) {
+	public <X> X unwrap(Map<String, String> value, Class<X> type, WrapperOptions options) {
 		return (X) toString( value );
 	}
 
 	@Override
-    public <X> Map wrap(X value, WrapperOptions options) {
+	public <X> Map<String, String> wrap(X value, WrapperOptions options) {
 		return fromString( (String) value );
 	}
 }