HHH-10050 - AttributeConverter should supports ParameterizedType if autoApply is true

hibernate-core/src/main/java/org/hibernate/boot/MetadataBuilder.java

@@ -395,7 +395,6 @@ public interface MetadataBuilder {
 
 	MetadataBuilder applyAuxiliaryDatabaseObject(AuxiliaryDatabaseObject auxiliaryDatabaseObject);
 
-
 	/**
 	 * Adds an AttributeConverter by a AttributeConverterDefinition
 	 *

hibernate-core/src/main/java/org/hibernate/boot/internal/AttributeConverterDescriptorImpl.java

@@ -0,0 +1,248 @@
+/*
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
+ * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
+ */
+package org.hibernate.boot.internal;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.Member;
+import java.lang.reflect.Method;
+import java.util.Collection;
+import java.util.List;
+import java.util.Map;
+import javax.persistence.AttributeConverter;
+
+import org.hibernate.AnnotationException;
+import org.hibernate.HibernateException;
+import org.hibernate.annotations.common.reflection.ReflectionManager;
+import org.hibernate.annotations.common.reflection.XProperty;
+import org.hibernate.annotations.common.reflection.java.JavaXMember;
+import org.hibernate.boot.spi.AttributeConverterDescriptor;
+import org.hibernate.boot.spi.MetadataBuildingContext;
+import org.hibernate.cfg.AttributeConverterDefinition;
+
+import com.fasterxml.classmate.ResolvedType;
+import com.fasterxml.classmate.ResolvedTypeWithMembers;
+import com.fasterxml.classmate.members.ResolvedField;
+import com.fasterxml.classmate.members.ResolvedMember;
+import com.fasterxml.classmate.members.ResolvedMethod;
+
+/**
+ * The standard AttributeConverterDescriptor implementation
+ *
+ * @author Steve Ebersole
+ */
+public class AttributeConverterDescriptorImpl implements AttributeConverterDescriptor {
+	private final AttributeConverter attributeConverter;
+	private final boolean autoApply;
+	private final ResolvedType domainType;
+	private final ResolvedType jdbcType;
+
+
+	public static AttributeConverterDescriptor create(
+			AttributeConverterDefinition definition,
+			ClassmateContext classmateContext) {
+		final AttributeConverter converter = definition.getAttributeConverter();
+		final Class converterClass = converter.getClass();
+
+		final ResolvedType converterType = classmateContext.getTypeResolver().resolve( converterClass );
+		final List<ResolvedType> converterParamTypes = converterType.typeParametersFor( AttributeConverter.class );
+		if ( converterParamTypes == null ) {
+			throw new AnnotationException(
+					"Could not extract type parameter information from AttributeConverter implementation ["
+							+ converterClass.getName() + "]"
+			);
+		}
+		else if ( converterParamTypes.size() != 2 ) {
+			throw new AnnotationException(
+					"Unexpected type parameter information for AttributeConverter implementation [" +
+							converterClass.getName() + "]; expected 2 parameter types, but found " + converterParamTypes.size()
+			);
+		}
+
+		return new AttributeConverterDescriptorImpl(
+				converter,
+				definition.isAutoApply(),
+				converterParamTypes.get( 0 ),
+				converterParamTypes.get( 1 )
+		);
+	}
+
+	private AttributeConverterDescriptorImpl(
+			AttributeConverter attributeConverter,
+			boolean autoApply,
+			ResolvedType domainType,
+			ResolvedType jdbcType) {
+		this.attributeConverter = attributeConverter;
+		this.autoApply = autoApply;
+		this.domainType = domainType;
+		this.jdbcType = jdbcType;
+	}
+
+	@Override
+	public AttributeConverter getAttributeConverter() {
+		return attributeConverter;
+	}
+
+	@Override
+	public Class<?> getDomainType() {
+		return domainType.getErasedType();
+	}
+
+	@Override
+	public Class<?> getJdbcType() {
+		return jdbcType.getErasedType();
+	}
+
+	@Override
+	@SuppressWarnings("SimplifiableIfStatement")
+	public boolean shouldAutoApplyToAttribute(XProperty xProperty, MetadataBuildingContext context) {
+		if ( !autoApply ) {
+			return false;
+		}
+
+		final ResolvedType attributeType = resolveAttributeType( xProperty, context );
+		return typesMatch( domainType, attributeType );
+	}
+
+	private ResolvedType resolveAttributeType(XProperty xProperty, MetadataBuildingContext context) {
+		return resolveMember( xProperty, context ).getType();
+	}
+
+	private ResolvedMember resolveMember(XProperty xProperty, MetadataBuildingContext buildingContext) {
+		final ClassmateContext classmateContext = buildingContext.getMetadataCollector().getClassmateContext();
+		final ReflectionManager reflectionManager = buildingContext.getBuildingOptions().getReflectionManager();
+
+		final ResolvedType declaringClassType = classmateContext.getTypeResolver().resolve(
+				reflectionManager.toClass( xProperty.getDeclaringClass() )
+		);
+		final ResolvedTypeWithMembers declaringClassWithMembers = classmateContext.getMemberResolver().resolve(
+				declaringClassType,
+				null,
+				null
+		);
+
+		final Member member = toMember( xProperty );
+		if ( member instanceof Method ) {
+			for ( ResolvedMethod resolvedMember : declaringClassWithMembers.getMemberMethods() ) {
+				if ( resolvedMember.getName().equals( member.getName() ) ) {
+					return resolvedMember;
+				}
+			}
+		}
+		else if ( member instanceof Field ) {
+			for ( ResolvedField resolvedMember : declaringClassWithMembers.getMemberFields() ) {
+				if ( resolvedMember.getName().equals( member.getName() ) ) {
+					return resolvedMember;
+				}
+			}
+		}
+		else {
+			throw new HibernateException( "Unexpected java.lang.reflect.Member type from org.hibernate.annotations.common.reflection.java.JavaXMember : " + member );
+		}
+
+		throw new HibernateException(
+				"Could not locate resolved type information for attribute [" + member.getName() + "] from Classmate"
+		);
+	}
+
+	private static Method memberMethod;
+
+	private static Member toMember(XProperty xProperty) {
+		if ( memberMethod == null ) {
+			Class<JavaXMember> javaXMemberClass = JavaXMember.class;
+			try {
+				memberMethod = javaXMemberClass.getDeclaredMethod( "getMember" );
+				memberMethod.setAccessible( true );
+			}
+			catch (NoSuchMethodException e) {
+				throw new HibernateException( "Could not access org.hibernate.annotations.common.reflection.java.JavaXMember#getMember method", e );
+			}
+		}
+
+		try {
+			return (Member) memberMethod.invoke( xProperty );
+		}
+		catch (Exception e) {
+			throw new HibernateException( "Could not access org.hibernate.annotations.common.reflection.java.JavaXMember#getMember method", e );
+		}
+	}
+
+	private boolean typesMatch(ResolvedType converterDefinedType, ResolvedType checkType) {
+		if ( !checkType.getErasedType().isAssignableFrom( converterDefinedType.getErasedType() ) ) {
+			return false;
+		}
+
+		// if the converter did not define any nested type parameters, then the check above is
+		// enough for a match
+		if ( converterDefinedType.getTypeParameters().isEmpty() ) {
+			return true;
+		}
+
+		// however, here the converter *did* define nested type parameters, so we'd have a converter defined using something like, e.g., List<String> for its
+		// domain type.
+		//
+		// we need to check those nested types as well
+
+		if ( checkType.getTypeParameters().isEmpty() ) {
+			// the domain type did not define nested type params.  a List<String> would not auto-match a List(<Object>)
+			return false;
+		}
+
+		if ( converterDefinedType.getTypeParameters().size() != checkType.getTypeParameters().size() ) {
+			// they had different number of type params somehow.
+			return false;
+		}
+
+		for ( int i = 0; i < converterDefinedType.getTypeParameters().size(); i++ ) {
+			if ( !typesMatch( converterDefinedType.getTypeParameters().get( i ), checkType.getTypeParameters().get( i ) ) ) {
+				return false;
+			}
+		}
+
+		return true;
+	}
+
+	@Override
+	public boolean shouldAutoApplyToCollectionElement(XProperty xProperty, MetadataBuildingContext context) {
+		if ( !autoApply ) {
+			return false;
+		}
+
+		final ResolvedMember collectionMember = resolveMember( xProperty, context );
+		final ResolvedType elementType;
+
+		if ( Map.class.isAssignableFrom( collectionMember.getType().getErasedType() ) ) {
+			elementType = collectionMember.getType().typeParametersFor( Map.class ).get( 1 );
+		}
+		else if ( Collection.class.isAssignableFrom( collectionMember.getType().getErasedType() ) ) {
+			elementType = collectionMember.getType().typeParametersFor( Collection.class ).get( 0 );
+		}
+		else {
+			throw new HibernateException( "Attribute was neither a Collection nor a Map : " + collectionMember.getType().getErasedType() );
+		}
+
+		return typesMatch( domainType, elementType );
+	}
+
+	@Override
+	public boolean shouldAutoApplyToMapKey(XProperty xProperty, MetadataBuildingContext context) {
+		if ( !autoApply ) {
+			return false;
+		}
+
+		final ResolvedMember collectionMember = resolveMember( xProperty, context );
+		final ResolvedType keyType;
+
+		if ( Map.class.isAssignableFrom( collectionMember.getType().getErasedType() ) ) {
+			keyType = collectionMember.getType().typeParametersFor( Map.class ).get( 0 );
+		}
+		else {
+			throw new HibernateException( "Attribute was not a Map : " + collectionMember.getType().getErasedType() );
+		}
+
+		return typesMatch( domainType, keyType );
+	}
+}

hibernate-core/src/main/java/org/hibernate/boot/internal/AttributeConverterDescriptorNonAutoApplicableImpl.java

@@ -0,0 +1,199 @@
+/*
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
+ * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
+ */
+package org.hibernate.boot.internal;
+
+import java.lang.reflect.ParameterizedType;
+import java.lang.reflect.Type;
+import java.lang.reflect.TypeVariable;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import javax.persistence.AttributeConverter;
+
+import org.hibernate.AnnotationException;
+import org.hibernate.AssertionFailure;
+import org.hibernate.annotations.common.reflection.XProperty;
+import org.hibernate.boot.spi.AttributeConverterDescriptor;
+import org.hibernate.boot.spi.MetadataBuildingContext;
+
+/**
+ * Special-use AttributeConverterDescriptor implementation for cases where the converter will never
+ * be used for auto-apply.
+ *
+ * @author Steve Ebersole
+ */
+public class AttributeConverterDescriptorNonAutoApplicableImpl implements AttributeConverterDescriptor {
+	private final AttributeConverter converter;
+
+	private Class domainType;
+	private Class jdbcType;
+
+	public AttributeConverterDescriptorNonAutoApplicableImpl(AttributeConverter converter) {
+		this.converter = converter;
+
+		final Class attributeConverterClass = converter.getClass();
+		final ParameterizedType attributeConverterSignature = extractAttributeConverterParameterizedType(
+				attributeConverterClass
+		);
+		if ( attributeConverterSignature == null ) {
+			throw new AssertionFailure(
+					"Could not extract ParameterizedType representation of AttributeConverter definition " +
+							"from AttributeConverter implementation class [" + attributeConverterClass.getName() + "]"
+			);
+		}
+
+		if ( attributeConverterSignature.getActualTypeArguments().length < 2 ) {
+			throw new AnnotationException(
+					"AttributeConverter [" + attributeConverterClass.getName()
+							+ "] did not retain parameterized type information"
+			);
+		}
+
+		if ( attributeConverterSignature.getActualTypeArguments().length > 2 ) {
+			throw new AnnotationException(
+					"AttributeConverter [" + attributeConverterClass.getName()
+							+ "] specified more than 2 parameterized types"
+			);
+		}
+
+		this.domainType = extractClass( attributeConverterSignature.getActualTypeArguments()[0] );
+		if ( this.domainType == null ) {
+			throw new AnnotationException(
+					"Could not determine domain type from given AttributeConverter [" +
+							attributeConverterClass.getName() + "]"
+			);
+		}
+
+		this.jdbcType = extractClass(attributeConverterSignature.getActualTypeArguments()[1]);
+		if ( this.jdbcType == null ) {
+			throw new AnnotationException(
+					"Could not determine JDBC type from given AttributeConverter [" +
+							attributeConverterClass.getName() + "]"
+			);
+		}
+	}
+
+	private ParameterizedType extractAttributeConverterParameterizedType(Type base) {
+		if ( base != null ) {
+			Class clazz = extractClass( base );
+			List<Type> types = new ArrayList<Type>();
+			types.add( clazz.getGenericSuperclass() );
+			types.addAll( Arrays.asList( clazz.getGenericInterfaces() ) );
+			for ( Type type : types ) {
+				type = resolveType( type, base );
+				if ( ParameterizedType.class.isInstance( type ) ) {
+					final ParameterizedType parameterizedType = (ParameterizedType) type;
+					if ( AttributeConverter.class.equals( parameterizedType.getRawType() ) ) {
+						return parameterizedType;
+					}
+				}
+				ParameterizedType parameterizedType = extractAttributeConverterParameterizedType( type );
+				if ( parameterizedType != null ) {
+					return parameterizedType;
+				}
+			}
+		}
+		return null;
+	}
+
+	private static Class extractClass(Type type) {
+		if ( type instanceof Class ) {
+			return (Class) type;
+		}
+		else if ( type instanceof ParameterizedType ) {
+			return extractClass( ( (ParameterizedType) type ).getRawType() );
+		}
+		return null;
+	}
+
+	private static Type resolveType(Type target, Type context) {
+		if ( target instanceof ParameterizedType ) {
+			return resolveParameterizedType( (ParameterizedType) target, context );
+		}
+		else if ( target instanceof TypeVariable ) {
+			return resolveTypeVariable( (TypeVariable) target, (ParameterizedType) context );
+		}
+		return target;
+	}
+
+	private static ParameterizedType resolveParameterizedType(final ParameterizedType parameterizedType, Type context) {
+		Type[] actualTypeArguments = parameterizedType.getActualTypeArguments();
+
+		final Type[] resolvedTypeArguments = new Type[actualTypeArguments.length];
+		for ( int idx = 0; idx < actualTypeArguments.length; idx++ ) {
+			resolvedTypeArguments[idx] = resolveType( actualTypeArguments[idx], context );
+		}
+		return new ParameterizedType() {
+
+			@Override
+			public Type[] getActualTypeArguments() {
+				return resolvedTypeArguments;
+			}
+
+			@Override
+			public Type getRawType() {
+				return parameterizedType.getRawType();
+			}
+
+			@Override
+			public Type getOwnerType() {
+				return parameterizedType.getOwnerType();
+			}
+
+		};
+	}
+
+	private static Type resolveTypeVariable(TypeVariable typeVariable, ParameterizedType context) {
+		Class clazz = extractClass( context.getRawType() );
+		TypeVariable[] typeParameters = clazz.getTypeParameters();
+		for ( int idx = 0; idx < typeParameters.length; idx++ ) {
+			if ( typeVariable.getName().equals( typeParameters[idx].getName() ) ) {
+				return resolveType( context.getActualTypeArguments()[idx], context );
+			}
+		}
+		return typeVariable;
+	}
+
+	private static Class extractType(TypeVariable typeVariable) {
+		java.lang.reflect.Type[] boundTypes = typeVariable.getBounds();
+		if ( boundTypes == null || boundTypes.length != 1 ) {
+			return null;
+		}
+
+		return (Class) boundTypes[0];
+	}
+
+	@Override
+	public AttributeConverter getAttributeConverter() {
+		return converter;
+	}
+
+	@Override
+	public Class<?> getDomainType() {
+		return domainType;
+	}
+
+	@Override
+	public Class<?> getJdbcType() {
+		return jdbcType;
+	}
+
+	@Override
+	public boolean shouldAutoApplyToAttribute(XProperty xProperty, MetadataBuildingContext context) {
+		return false;
+	}
+
+	@Override
+	public boolean shouldAutoApplyToCollectionElement(XProperty xProperty, MetadataBuildingContext context) {
+		return false;
+	}
+
+	@Override
+	public boolean shouldAutoApplyToMapKey(XProperty xProperty, MetadataBuildingContext context) {
+		return false;
+	}
+}

hibernate-core/src/main/java/org/hibernate/boot/internal/AttributeConverterManager.java

@@ -0,0 +1,190 @@
+/*
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
+ * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
+ */
+package org.hibernate.boot.internal;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+import java.util.Locale;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+import org.hibernate.AssertionFailure;
+import org.hibernate.annotations.common.reflection.XProperty;
+import org.hibernate.boot.spi.AttributeConverterAutoApplyHandler;
+import org.hibernate.boot.spi.AttributeConverterDescriptor;
+import org.hibernate.boot.spi.MetadataBuildingContext;
+import org.hibernate.internal.util.StringHelper;
+
+import org.jboss.logging.Logger;
+
+/**
+ * @author Steve Ebersole
+ */
+public class AttributeConverterManager implements AttributeConverterAutoApplyHandler {
+	private static final Logger log = Logger.getLogger( AttributeConverterManager.class );
+
+	private Map<Class, AttributeConverterDescriptor> attributeConverterDescriptorsByClass;
+
+	void addConverter(AttributeConverterDescriptor descriptor) {
+		if ( attributeConverterDescriptorsByClass == null ) {
+			attributeConverterDescriptorsByClass = new ConcurrentHashMap<Class, AttributeConverterDescriptor>();
+		}
+
+		final Object old = attributeConverterDescriptorsByClass.put(
+				descriptor.getAttributeConverter().getClass(),
+				descriptor
+		);
+
+		if ( old != null ) {
+			throw new AssertionFailure(
+					String.format(
+							Locale.ENGLISH,
+							"AttributeConverter class [%s] registered multiple times",
+							descriptor.getAttributeConverter().getClass()
+					)
+			);
+		}
+	}
+
+	private Collection<AttributeConverterDescriptor> converterDescriptors() {
+		if ( attributeConverterDescriptorsByClass == null ) {
+			return Collections.emptyList();
+		}
+		return attributeConverterDescriptorsByClass.values();
+	}
+
+	@Override
+	public AttributeConverterDescriptor findAutoApplyConverterForAttribute(
+			XProperty xProperty,
+			MetadataBuildingContext context) {
+		List<AttributeConverterDescriptor> matched = new ArrayList<AttributeConverterDescriptor>();
+
+		for ( AttributeConverterDescriptor descriptor : converterDescriptors() ) {
+			log.debugf(
+					"Checking auto-apply AttributeConverter [%s] (type=%s) for match against attribute : %s.%s (type=%s)",
+					descriptor.toString(),
+					descriptor.getDomainType().getSimpleName(),
+					xProperty.getDeclaringClass().getName(),
+					xProperty.getName(),
+					xProperty.getType().getName()
+			);
+
+			if ( descriptor.shouldAutoApplyToAttribute( xProperty, context ) ) {
+				matched.add( descriptor );
+			}
+		}
+
+		if ( matched.isEmpty() ) {
+			return null;
+		}
+
+		if ( matched.size() == 1 ) {
+			return matched.get( 0 );
+		}
+
+		// otherwise, we had multiple matches
+		throw new RuntimeException(
+				String.format(
+						Locale.ROOT,
+						"Multiple auto-apply converters matched attribute [%s.%s] : %s",
+						xProperty.getDeclaringClass().getName(),
+						xProperty.getName(),
+						StringHelper.join( matched, RENDERER )
+				)
+		);
+	}
+
+	@Override
+	public AttributeConverterDescriptor findAutoApplyConverterForCollectionElement(
+			XProperty xProperty,
+			MetadataBuildingContext context) {
+		List<AttributeConverterDescriptor> matched = new ArrayList<AttributeConverterDescriptor>();
+
+		for ( AttributeConverterDescriptor descriptor : converterDescriptors() ) {
+			log.debugf(
+					"Checking auto-apply AttributeConverter [%s] (type=%s) for match against collection attribute's element : %s.%s (type=%s)",
+					descriptor.toString(),
+					descriptor.getDomainType().getSimpleName(),
+					xProperty.getDeclaringClass().getName(),
+					xProperty.getName(),
+					xProperty.getElementClass().getName()
+			);
+			if ( descriptor.shouldAutoApplyToCollectionElement( xProperty, context ) ) {
+				matched.add( descriptor );
+			}
+		}
+
+		if ( matched.isEmpty() ) {
+			return null;
+		}
+
+		if ( matched.size() == 1 ) {
+			return matched.get( 0 );
+		}
+
+		// otherwise, we had multiple matches
+		throw new RuntimeException(
+				String.format(
+						Locale.ROOT,
+						"Multiple auto-apply converters matched attribute [%s.%s] : %s",
+						xProperty.getDeclaringClass().getName(),
+						xProperty.getName(),
+						StringHelper.join( matched, RENDERER )
+				)
+		);
+	}
+
+	@Override
+	public AttributeConverterDescriptor findAutoApplyConverterForMapKey(
+			XProperty xProperty,
+			MetadataBuildingContext context) {
+		List<AttributeConverterDescriptor> matched = new ArrayList<AttributeConverterDescriptor>();
+
+		for ( AttributeConverterDescriptor descriptor : converterDescriptors() ) {
+			log.debugf(
+					"Checking auto-apply AttributeConverter [%s] (type=%s) for match against map attribute's key : %s.%s (type=%s)",
+					descriptor.toString(),
+					descriptor.getDomainType().getSimpleName(),
+					xProperty.getDeclaringClass().getName(),
+					xProperty.getName(),
+					xProperty.getMapKey().getName()
+			);
+			if ( descriptor.shouldAutoApplyToMapKey( xProperty, context ) ) {
+				matched.add( descriptor );
+			}
+		}
+
+		if ( matched.isEmpty() ) {
+			return null;
+		}
+
+		if ( matched.size() == 1 ) {
+			return matched.get( 0 );
+		}
+
+		// otherwise, we had multiple matches
+		throw new RuntimeException(
+				String.format(
+						Locale.ROOT,
+						"Multiple auto-apply converters matched attribute [%s.%s] : %s",
+						xProperty.getDeclaringClass().getName(),
+						xProperty.getName(),
+						StringHelper.join( matched, RENDERER )
+				)
+		);
+	}
+
+	private static StringHelper.Renderer<AttributeConverterDescriptor> RENDERER = new StringHelper.Renderer<AttributeConverterDescriptor>() {
+		@Override
+		public String render(AttributeConverterDescriptor value) {
+			return value.getAttributeConverter().getClass().getName();
+		}
+	};
+
+}

hibernate-core/src/main/java/org/hibernate/boot/internal/ClassmateContext.java

@@ -0,0 +1,37 @@
+/*
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
+ * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
+ */
+package org.hibernate.boot.internal;
+
+import com.fasterxml.classmate.MemberResolver;
+import com.fasterxml.classmate.TypeResolver;
+
+/**
+ * @author Steve Ebersole
+ */
+public class ClassmateContext {
+	private TypeResolver typeResolver = new TypeResolver();
+	private MemberResolver memberResolver = new MemberResolver( typeResolver );
+
+	public TypeResolver getTypeResolver() {
+		if ( typeResolver == null ) {
+			throw new IllegalStateException( "Classmate context has been released" );
+		}
+		return typeResolver;
+	}
+
+	public MemberResolver getMemberResolver() {
+		if ( memberResolver == null ) {
+			throw new IllegalStateException( "Classmate context has been released" );
+		}
+		return memberResolver;
+	}
+
+	public void release() {
+		typeResolver = null;
+		memberResolver = null;
+	}
+}

hibernate-core/src/main/java/org/hibernate/boot/internal/InFlightMetadataCollectorImpl.java

@@ -48,6 +48,8 @@ import org.hibernate.boot.model.relational.Namespace;
 import org.hibernate.boot.model.source.internal.ConstraintSecondPass;
 import org.hibernate.boot.model.source.internal.ImplicitColumnNamingSecondPass;
 import org.hibernate.boot.model.source.spi.LocalMetadataBuildingContext;
+import org.hibernate.boot.spi.AttributeConverterAutoApplyHandler;
+import org.hibernate.boot.spi.AttributeConverterDescriptor;
 import org.hibernate.boot.spi.InFlightMetadataCollector;
 import org.hibernate.boot.spi.MetadataBuildingContext;
 import org.hibernate.boot.spi.MetadataBuildingOptions;
@@ -115,6 +117,9 @@ public class InFlightMetadataCollectorImpl implements InFlightMetadataCollector
 	private final MetadataBuildingOptions options;
 	private final TypeResolver typeResolver;
 
+	private final AttributeConverterManager attributeConverterManager = new AttributeConverterManager();
+	private final ClassmateContext classmateContext = new ClassmateContext();
+
 	private final UUID uuid;
 	private final MutableIdentifierGeneratorFactory identifierGeneratorFactory;
 
@@ -136,10 +141,8 @@ public class InFlightMetadataCollectorImpl implements InFlightMetadataCollector
 	private final Map<String, FetchProfile> fetchProfileMap = new HashMap<String, FetchProfile>();
 	private final Map<String, IdentifierGeneratorDefinition> idGeneratorDefinitionMap = new HashMap<String, IdentifierGeneratorDefinition>();
 
-	private Map<Class, AttributeConverterDefinition> attributeConverterDefinitionsByClass;
 	private Map<String, SQLFunction> sqlFunctionMap;
 
-
 	// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 	// All the annotation-processing-specific state :(
 	private final Set<String> defaultIdentifierGeneratorNames = new HashSet<String>();
@@ -335,68 +338,33 @@ public class InFlightMetadataCollectorImpl implements InFlightMetadataCollector
 		}
 	}
 
+	@Override
+	public ClassmateContext getClassmateContext() {
+		return classmateContext;
+	}
+
+
 	// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 	// attribute converters
 
 	@Override
 	public void addAttributeConverter(AttributeConverterDefinition definition) {
-		if ( attributeConverterDefinitionsByClass == null ) {
+		attributeConverterManager.addConverter(
-			attributeConverterDefinitionsByClass = new ConcurrentHashMap<Class, AttributeConverterDefinition>();
+				AttributeConverterDescriptorImpl.create(
-		}
+						definition,
-
+						classmateContext
-		final Object old = attributeConverterDefinitionsByClass.put(
-				definition.getAttributeConverter().getClass(),
-				definition
-		);
-
-		if ( old != null ) {
-			throw new AssertionFailure(
-					String.format(
-							Locale.ENGLISH,
-							"AttributeConverter class [%s] registered multiple times",
-							definition.getAttributeConverter().getClass()
-					)
-			);
-		}
-	}
-
-	public static AttributeConverter instantiateAttributeConverter(Class<? extends AttributeConverter> attributeConverterClass) {
-		try {
-			return attributeConverterClass.newInstance();
-		}
-		catch (Exception e) {
-			throw new AnnotationException(
-					"Unable to instantiate AttributeConverter [" + attributeConverterClass.getName() + "]",
-					e
-			);
-		}
-	}
-
-	public static AttributeConverterDefinition toAttributeConverterDefinition(AttributeConverter attributeConverter) {
-		boolean autoApply = false;
-		Converter converterAnnotation = attributeConverter.getClass().getAnnotation( Converter.class );
-		if ( converterAnnotation != null ) {
-			autoApply = converterAnnotation.autoApply();
-		}
-
-		return new AttributeConverterDefinition( attributeConverter, autoApply );
-	}
-
-	@Override
-	public void addAttributeConverter(Class<? extends AttributeConverter> converterClass) {
-		addAttributeConverter(
-				toAttributeConverterDefinition(
-						instantiateAttributeConverter( converterClass )
 				)
 		);
 	}
 
 	@Override
-	public java.util.Collection<AttributeConverterDefinition> getAttributeConverters() {
+	public void addAttributeConverter(Class<? extends AttributeConverter> converterClass) {
-		if ( attributeConverterDefinitionsByClass == null ) {
+		addAttributeConverter( AttributeConverterDefinition.from( converterClass ) );
-			return Collections.emptyList();
+	}
-		}
+
-		return attributeConverterDefinitionsByClass.values();
+	@Override
+	public AttributeConverterAutoApplyHandler getAttributeConverterAutoApplyHandler() {
+		return attributeConverterManager;
 	}
 
 
@@ -2164,27 +2132,32 @@ public class InFlightMetadataCollectorImpl implements InFlightMetadataCollector
 		processSecondPasses( buildingContext );
 		processExportableProducers( buildingContext );
 
-		return new MetadataImpl(
+		try {
-				uuid,
+			return new MetadataImpl(
-				options,
+					uuid,
-				typeResolver,
+					options,
-				identifierGeneratorFactory,
+					typeResolver,
-				entityBindingMap,
+					identifierGeneratorFactory,
-				mappedSuperClasses,
+					entityBindingMap,
-				collectionBindingMap,
+					mappedSuperClasses,
-				typeDefinitionMap,
+					collectionBindingMap,
-				filterDefinitionMap,
+					typeDefinitionMap,
-				fetchProfileMap,
+					filterDefinitionMap,
-				imports,
+					fetchProfileMap,
-				idGeneratorDefinitionMap,
+					imports,
-				namedQueryMap,
+					idGeneratorDefinitionMap,
-				namedNativeQueryMap,
+					namedQueryMap,
-				namedProcedureCallMap,
+					namedNativeQueryMap,
-				sqlResultSetMappingMap,
+					namedProcedureCallMap,
-				namedEntityGraphMap,
+					sqlResultSetMappingMap,
-				sqlFunctionMap,
+					namedEntityGraphMap,
-				getDatabase()
+					sqlFunctionMap,
-		);
+					getDatabase()
+			);
+		}
+		finally {
+			classmateContext.release();
+		}
 	}
 
 	private void processExportableProducers(MetadataBuildingContext buildingContext) {

hibernate-core/src/main/java/org/hibernate/boot/spi/AttributeConverterAutoApplyHandler.java

@@ -0,0 +1,18 @@
+/*
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
+ * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
+ */
+package org.hibernate.boot.spi;
+
+import org.hibernate.annotations.common.reflection.XProperty;
+
+/**
+ * @author Steve Ebersole
+ */
+public interface AttributeConverterAutoApplyHandler {
+	AttributeConverterDescriptor findAutoApplyConverterForAttribute(XProperty xProperty, MetadataBuildingContext context);
+	AttributeConverterDescriptor findAutoApplyConverterForCollectionElement(XProperty xProperty, MetadataBuildingContext context);
+	AttributeConverterDescriptor findAutoApplyConverterForMapKey(XProperty xProperty, MetadataBuildingContext context);
+}

hibernate-core/src/main/java/org/hibernate/boot/spi/AttributeConverterDescriptor.java

@@ -0,0 +1,27 @@
+/*
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
+ * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
+ */
+package org.hibernate.boot.spi;
+
+import javax.persistence.AttributeConverter;
+
+import org.hibernate.annotations.common.reflection.XProperty;
+
+/**
+ * Internal descriptor for an AttributeConverter implementation.
+ *
+ * @author Steve Ebersole
+ */
+public interface AttributeConverterDescriptor {
+	AttributeConverter getAttributeConverter();
+	Class<?> getDomainType();
+	Class<?> getJdbcType();
+
+	boolean shouldAutoApplyToAttribute(XProperty xProperty, MetadataBuildingContext context);
+	boolean shouldAutoApplyToCollectionElement(XProperty xProperty, MetadataBuildingContext context);
+	boolean shouldAutoApplyToMapKey(XProperty xProperty, MetadataBuildingContext context);
+
+}

hibernate-core/src/main/java/org/hibernate/boot/spi/InFlightMetadataCollector.java

@@ -17,6 +17,7 @@ import org.hibernate.HibernateException;
 import org.hibernate.MappingException;
 import org.hibernate.annotations.AnyMetaDef;
 import org.hibernate.annotations.common.reflection.XClass;
+import org.hibernate.boot.internal.ClassmateContext;
 import org.hibernate.boot.model.IdentifierGeneratorDefinition;
 import org.hibernate.boot.model.TypeDefinition;
 import org.hibernate.boot.model.naming.Identifier;
@@ -213,7 +214,9 @@ public interface InFlightMetadataCollector extends Mapping, MetadataImplementor
 
 	void addAttributeConverter(AttributeConverterDefinition converter);
 	void addAttributeConverter(Class<? extends AttributeConverter> converterClass);
-	java.util.Collection<AttributeConverterDefinition> getAttributeConverters();
+
+	AttributeConverterAutoApplyHandler getAttributeConverterAutoApplyHandler();
+
 
 	// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 	// second passes
@@ -275,6 +278,8 @@ public interface InFlightMetadataCollector extends Mapping, MetadataImplementor
 	NaturalIdUniqueKeyBinder locateNaturalIdUniqueKeyBinder(String entityName);
 	void registerNaturalIdUniqueKeyBinder(String entityName, NaturalIdUniqueKeyBinder ukBinder);
 
+	ClassmateContext getClassmateContext();
+
 	interface DelayedPropertyReferenceHandler extends Serializable {
 		void process(InFlightMetadataCollector metadataCollector);
 	}

hibernate-core/src/main/java/org/hibernate/cfg/AbstractPropertyHolder.java

@@ -24,6 +24,8 @@ import org.hibernate.AssertionFailure;
 import org.hibernate.annotations.common.reflection.XAnnotatedElement;
 import org.hibernate.annotations.common.reflection.XClass;
 import org.hibernate.annotations.common.reflection.XProperty;
+import org.hibernate.boot.internal.AttributeConverterDescriptorImpl;
+import org.hibernate.boot.spi.AttributeConverterDescriptor;
 import org.hibernate.boot.spi.MetadataBuildingContext;
 import org.hibernate.internal.CoreLogging;
 import org.hibernate.internal.util.StringHelper;
@@ -68,7 +70,7 @@ public abstract class AbstractPropertyHolder implements PropertyHolder {
 	protected abstract AttributeConversionInfo locateAttributeConversionInfo(String path);
 
 	@Override
-	public AttributeConverterDefinition resolveAttributeConverterDefinition(XProperty property) {
+	public AttributeConverterDescriptor resolveAttributeConverterDescriptor(XProperty property) {
 		AttributeConversionInfo info = locateAttributeConversionInfo( property );
 		if ( info != null ) {
 			if ( info.isConversionDisabled() ) {
@@ -76,7 +78,7 @@ public abstract class AbstractPropertyHolder implements PropertyHolder {
 			}
 			else {
 				try {
-					return makeAttributeConverterDefinition( info );
+					return makeAttributeConverterDescriptor( info );
 				}
 				catch (Exception e) {
 					throw new IllegalStateException(
@@ -89,28 +91,15 @@ public abstract class AbstractPropertyHolder implements PropertyHolder {
 
 		log.debugf( "Attempting to locate auto-apply AttributeConverter for property [%s:%s]", path, property.getName() );
 
-		final Class propertyType = context.getBuildingOptions().getReflectionManager().toClass( property.getType() );
+		return context.getMetadataCollector()
-		for ( AttributeConverterDefinition attributeConverterDefinition : context.getMetadataCollector().getAttributeConverters() ) {
+				.getAttributeConverterAutoApplyHandler()
-			if ( ! attributeConverterDefinition.isAutoApply() ) {
+				.findAutoApplyConverterForAttribute( property, context );
-				continue;
-			}
-			log.debugf(
-					"Checking auto-apply AttributeConverter [%s] type [%s] for match [%s]",
-					attributeConverterDefinition.toString(),
-					attributeConverterDefinition.getEntityAttributeType().getSimpleName(),
-					propertyType.getSimpleName()
-			);
-			if ( areTypeMatch( attributeConverterDefinition.getEntityAttributeType(), propertyType ) ) {
-				return attributeConverterDefinition;
-			}
-		}
-
-		return null;
 	}
 
-	protected AttributeConverterDefinition makeAttributeConverterDefinition(AttributeConversionInfo conversion) {
+	protected AttributeConverterDescriptor makeAttributeConverterDescriptor(AttributeConversionInfo conversion) {
 		try {
-			return new AttributeConverterDefinition( conversion.getConverterClass().newInstance(), false );
+			AttributeConverterDefinition definition = new AttributeConverterDefinition( conversion.getConverterClass().newInstance(), false );
+			return AttributeConverterDescriptorImpl.create( definition, context.getMetadataCollector().getClassmateContext() );
 		}
 		catch (Exception e) {
 			throw new AnnotationException( "Unable to create AttributeConverter instance", e );

hibernate-core/src/main/java/org/hibernate/cfg/AttributeConverterDefinition.java

@@ -12,20 +12,20 @@ import java.lang.reflect.TypeVariable;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
-
 import javax.persistence.AttributeConverter;
 import javax.persistence.Converter;
 
 import org.hibernate.AnnotationException;
 import org.hibernate.AssertionFailure;
-import org.jboss.logging.Logger;
 
 /**
+ * Externalized representation of an AttributeConverter
+ *
  * @author Steve Ebersole
+ *
+ * @see org.hibernate.boot.spi.AttributeConverterDescriptor
  */
 public class AttributeConverterDefinition {
-	private static final Logger log = Logger.getLogger( AttributeConverterDefinition.class );
-
 	private final AttributeConverter attributeConverter;
 	private final boolean autoApply;
 	private final Class entityAttributeType;

hibernate-core/src/main/java/org/hibernate/cfg/CollectionPropertyHolder.java

@@ -25,7 +25,7 @@ import org.hibernate.annotations.ManyToAny;
 import org.hibernate.annotations.MapKeyType;
 import org.hibernate.annotations.common.reflection.XClass;
 import org.hibernate.annotations.common.reflection.XProperty;
-import org.hibernate.boot.model.source.spi.AttributePath;
+import org.hibernate.boot.spi.AttributeConverterDescriptor;
 import org.hibernate.boot.spi.MetadataBuildingContext;
 import org.hibernate.internal.CoreLogging;
 import org.hibernate.internal.CoreMessageLogger;
@@ -345,7 +345,7 @@ public class CollectionPropertyHolder extends AbstractPropertyHolder {
 		}
 	}
 
-	public AttributeConverterDefinition resolveElementAttributeConverterDefinition(XClass elementXClass) {
+	public AttributeConverterDescriptor resolveElementAttributeConverterDescriptor(XProperty collectionXProperty, XClass elementXClass) {
 		AttributeConversionInfo info = locateAttributeConversionInfo( "element" );
 		if ( info != null ) {
 			if ( info.isConversionDisabled() ) {
@@ -353,7 +353,7 @@ public class CollectionPropertyHolder extends AbstractPropertyHolder {
 			}
 			else {
 				try {
-					return makeAttributeConverterDefinition( info );
+					return makeAttributeConverterDescriptor( info );
 				}
 				catch (Exception e) {
 					throw new IllegalStateException(
@@ -369,25 +369,11 @@ public class CollectionPropertyHolder extends AbstractPropertyHolder {
 				collection.getRole()
 		);
 
-		final Class elementClass = determineElementClass( elementXClass );
+		// todo : do we need to pass along `XClass elementXClass`?
-		if ( elementClass != null ) {
-			for ( AttributeConverterDefinition attributeConverterDefinition : getContext().getMetadataCollector().getAttributeConverters() ) {
-				if ( ! attributeConverterDefinition.isAutoApply() ) {
-					continue;
-				}
-				log.debugf(
-						"Checking auto-apply AttributeConverter [%s] type [%s] for match [%s]",
-						attributeConverterDefinition.toString(),
-						attributeConverterDefinition.getEntityAttributeType().getSimpleName(),
-						elementClass.getSimpleName()
-				);
-				if ( areTypeMatch( attributeConverterDefinition.getEntityAttributeType(), elementClass ) ) {
-					return attributeConverterDefinition;
-				}
-			}
-		}
 
-		return null;
+		return getContext().getMetadataCollector()
+				.getAttributeConverterAutoApplyHandler()
+				.findAutoApplyConverterForCollectionElement( collectionXProperty, getContext() );
 	}
 
 	private Class determineElementClass(XClass elementXClass) {
@@ -419,7 +405,7 @@ public class CollectionPropertyHolder extends AbstractPropertyHolder {
 		return null;
 	}
 
-	public AttributeConverterDefinition keyElementAttributeConverterDefinition(XClass keyXClass) {
+	public AttributeConverterDescriptor mapKeyAttributeConverterDescriptor(XProperty mapXProperty, XClass keyXClass) {
 		AttributeConversionInfo info = locateAttributeConversionInfo( "key" );
 		if ( info != null ) {
 			if ( info.isConversionDisabled() ) {
@@ -427,7 +413,7 @@ public class CollectionPropertyHolder extends AbstractPropertyHolder {
 			}
 			else {
 				try {
-					return makeAttributeConverterDefinition( info );
+					return makeAttributeConverterDescriptor( info );
 				}
 				catch (Exception e) {
 					throw new IllegalStateException(
@@ -443,25 +429,11 @@ public class CollectionPropertyHolder extends AbstractPropertyHolder {
 				collection.getRole()
 		);
 
-		final Class elementClass = determineKeyClass( keyXClass );
+		// todo : do we need to pass along `XClass keyXClass`?
-		if ( elementClass != null ) {
-			for ( AttributeConverterDefinition attributeConverterDefinition : getContext().getMetadataCollector().getAttributeConverters() ) {
-				if ( ! attributeConverterDefinition.isAutoApply() ) {
-					continue;
-				}
-				log.debugf(
-						"Checking auto-apply AttributeConverter [%s] type [%s] for match [%s]",
-						attributeConverterDefinition.toString(),
-						attributeConverterDefinition.getEntityAttributeType().getSimpleName(),
-						elementClass.getSimpleName()
-				);
-				if ( areTypeMatch( attributeConverterDefinition.getEntityAttributeType(), elementClass ) ) {
-					return attributeConverterDefinition;
-				}
-			}
-		}
 
-		return null;
+		return getContext().getMetadataCollector()
+				.getAttributeConverterAutoApplyHandler()
+				.findAutoApplyConverterForMapKey( mapXProperty, getContext() );
 	}
 
 	private Class determineKeyClass(XClass keyXClass) {

hibernate-core/src/main/java/org/hibernate/cfg/PropertyHolder.java

@@ -12,6 +12,7 @@ import javax.persistence.JoinTable;
 
 import org.hibernate.annotations.common.reflection.XClass;
 import org.hibernate.annotations.common.reflection.XProperty;
+import org.hibernate.boot.spi.AttributeConverterDescriptor;
 import org.hibernate.mapping.Join;
 import org.hibernate.mapping.KeyValue;
 import org.hibernate.mapping.PersistentClass;
@@ -91,5 +92,5 @@ public interface PropertyHolder {
 	 * @param property
 	 * @return
 	 */
-	AttributeConverterDefinition resolveAttributeConverterDefinition(XProperty property);
+	AttributeConverterDescriptor resolveAttributeConverterDescriptor(XProperty property);
 }

hibernate-core/src/main/java/org/hibernate/cfg/annotations/CollectionBinder.java

@@ -1460,7 +1460,7 @@ public abstract class CollectionBinder {
 						property,
 						elementClass,
 						collValue.getOwnerEntityName(),
-						holder.resolveElementAttributeConverterDefinition( elementClass )
+						holder.resolveElementAttributeConverterDescriptor( property, elementClass )
 				);
 				elementBinder.setPersistentClassName( propertyHolder.getEntityName() );
 				elementBinder.setAccessType( accessType );

hibernate-core/src/main/java/org/hibernate/cfg/annotations/MapBinder.java

@@ -275,7 +275,7 @@ public class MapBinder extends CollectionBinder {
 							property,
 							keyXClass,
 							this.collection.getOwnerEntityName(),
-							holder.keyElementAttributeConverterDefinition( keyXClass )
+							holder.mapKeyAttributeConverterDescriptor( property, keyXClass )
 					);
 					elementBinder.setPersistentClassName( propertyHolder.getEntityName() );
 					elementBinder.setAccessType( accessType );

hibernate-core/src/main/java/org/hibernate/cfg/annotations/PropertyBinder.java

@@ -180,7 +180,7 @@ public class PropertyBinder {
 				property,
 				returnedClass,
 				containerClassName,
-				holder.resolveAttributeConverterDefinition( property )
+				holder.resolveAttributeConverterDescriptor( property )
 		);
 		simpleValueBinder.setReferencedEntityName( referencedEntityName );
 		simpleValueBinder.setAccessType( accessType );

hibernate-core/src/main/java/org/hibernate/cfg/annotations/SimpleValueBinder.java

@@ -31,6 +31,7 @@ import org.hibernate.annotations.common.reflection.XClass;
 import org.hibernate.annotations.common.reflection.XProperty;
 import org.hibernate.annotations.common.util.StandardClassLoaderDelegateImpl;
 import org.hibernate.boot.model.TypeDefinition;
+import org.hibernate.boot.spi.AttributeConverterDescriptor;
 import org.hibernate.boot.spi.MetadataBuildingContext;
 import org.hibernate.cfg.AccessType;
 import org.hibernate.cfg.AttributeConverterDefinition;
@@ -86,7 +87,7 @@ public class SimpleValueBinder {
 	private XProperty xproperty;
 	private AccessType accessType;
 
-	private AttributeConverterDefinition attributeConverterDefinition;
+	private AttributeConverterDescriptor attributeConverterDescriptor;
 
 	public void setReferencedEntityName(String referencedEntityName) {
 		this.referencedEntityName = referencedEntityName;
@@ -131,7 +132,7 @@ public class SimpleValueBinder {
 
 	//TODO execute it lazily to be order safe
 
-	public void setType(XProperty property, XClass returnedClass, String declaringClassName, AttributeConverterDefinition attributeConverterDefinition) {
+	public void setType(XProperty property, XClass returnedClass, String declaringClassName, AttributeConverterDescriptor attributeConverterDescriptor) {
 		if ( returnedClass == null ) {
 			// we cannot guess anything
 			return;
@@ -302,11 +303,11 @@ public class SimpleValueBinder {
 		defaultType = BinderHelper.isEmptyAnnotationValue( type ) ? returnedClassName : type;
 		this.typeParameters = typeParameters;
 
-		applyAttributeConverter( property, attributeConverterDefinition );
+		applyAttributeConverter( property, attributeConverterDescriptor );
 	}
 
-	private void applyAttributeConverter(XProperty property, AttributeConverterDefinition attributeConverterDefinition) {
+	private void applyAttributeConverter(XProperty property, AttributeConverterDescriptor attributeConverterDescriptor) {
-		if ( attributeConverterDefinition == null ) {
+		if ( attributeConverterDescriptor == null ) {
 			return;
 		}
 
@@ -337,7 +338,7 @@ public class SimpleValueBinder {
 			return;
 		}
 
-		this.attributeConverterDefinition = attributeConverterDefinition;
+		this.attributeConverterDescriptor = attributeConverterDescriptor;
 	}
 
 	private boolean isAssociation() {
@@ -429,7 +430,7 @@ public class SimpleValueBinder {
 	public void fillSimpleValue() {
 		LOG.debugf( "Starting fillSimpleValue for %s", propertyName );
                 
-		if ( attributeConverterDefinition != null ) {
+		if ( attributeConverterDescriptor != null ) {
 			if ( ! BinderHelper.isEmptyAnnotationValue( explicitType ) ) {
 				throw new AnnotationException(
 						String.format(
@@ -442,11 +443,11 @@ public class SimpleValueBinder {
 			}
 			LOG.debugf(
 					"Applying JPA AttributeConverter [%s] to [%s:%s]",
-					attributeConverterDefinition,
+					attributeConverterDescriptor,
 					persistentClassName,
 					propertyName
 			);
-			simpleValue.setJpaAttributeConverterDefinition( attributeConverterDefinition );
+			simpleValue.setJpaAttributeConverterDescriptor( attributeConverterDescriptor );
 		}
 		else {
 			String type;
@@ -480,7 +481,7 @@ public class SimpleValueBinder {
 			simpleValue.setTypeName( type );
 		}
 
-		if ( persistentClassName != null || attributeConverterDefinition != null ) {
+		if ( persistentClassName != null || attributeConverterDescriptor != null ) {
 			try {
 				simpleValue.setTypeUsingReflection( persistentClassName, propertyName );
 			}

hibernate-core/src/main/java/org/hibernate/internal/util/StringHelper.java

@@ -13,6 +13,7 @@ import java.io.Serializable;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.BitSet;
+import java.util.Collection;
 import java.util.HashSet;
 import java.util.Iterator;
 import java.util.List;
@@ -803,4 +804,29 @@ public final class StringHelper {
 	public static List<String> parseCommaSeparatedString(String incomingString) {
 		return Arrays.asList( incomingString.split( "\\s*,\\s*" ) );
 	}
+
+	public static <T> String join(Collection<T> values, Renderer<T> renderer) {
+		final StringBuilder buffer = new StringBuilder();
+		boolean firstPass = true;
+		for ( T value : values ) {
+			if ( firstPass ) {
+				firstPass = false;
+			}
+			else {
+				buffer.append( ", " );
+			}
+
+			buffer.append( renderer.render( value ) );
+		}
+
+		return buffer.toString();
+	}
+
+	public static <T> String join(T[] values, Renderer<T> renderer) {
+		return join( Arrays.asList( values ), renderer );
+	}
+
+	public interface Renderer<T> {
+		String render(T value);
+	}
 }

hibernate-core/src/main/java/org/hibernate/mapping/SimpleValue.java

@@ -19,10 +19,11 @@ import javax.persistence.AttributeConverter;
 import org.hibernate.FetchMode;
 import org.hibernate.MappingException;
 import org.hibernate.annotations.common.reflection.XProperty;
+import org.hibernate.boot.internal.AttributeConverterDescriptorNonAutoApplicableImpl;
 import org.hibernate.boot.registry.classloading.spi.ClassLoaderService;
 import org.hibernate.boot.registry.classloading.spi.ClassLoadingException;
+import org.hibernate.boot.spi.AttributeConverterDescriptor;
 import org.hibernate.boot.spi.MetadataImplementor;
-import org.hibernate.cfg.AttributeConverterDefinition;
 import org.hibernate.cfg.AvailableSettings;
 import org.hibernate.dialect.Dialect;
 import org.hibernate.engine.config.spi.ConfigurationService;
@@ -75,7 +76,7 @@ public class SimpleValue implements KeyValue {
 	private boolean alternateUniqueKey;
 	private boolean cascadeDeleteEnabled;
 
-	private AttributeConverterDefinition attributeConverterDefinition;
+	private AttributeConverterDescriptor attributeConverterDescriptor;
 	private Type type;
 
 	public SimpleValue(MetadataImplementor metadata) {
@@ -155,7 +156,7 @@ public class SimpleValue implements KeyValue {
 					.getService( ClassLoaderService.class );
 			try {
 				final Class<AttributeConverter> converterClass = cls.classForName( converterClassName );
-				attributeConverterDefinition = new AttributeConverterDefinition( converterClass.newInstance(), false );
+				attributeConverterDescriptor = new AttributeConverterDescriptorNonAutoApplicableImpl( converterClass.newInstance() );
 				return;
 			}
 			catch (Exception e) {
@@ -420,7 +421,7 @@ public class SimpleValue implements KeyValue {
 			return;
 		}
 
-		if ( attributeConverterDefinition == null ) {
+		if ( attributeConverterDescriptor == null ) {
 			// this is here to work like legacy.  This should change when we integrate with metamodel to
 			// look for SqlTypeDescriptor and JavaTypeDescriptor individually and create the BasicType (well, really
 			// keep a registry of [SqlTypeDescriptor,JavaTypeDescriptor] -> BasicType...)
@@ -475,8 +476,8 @@ public class SimpleValue implements KeyValue {
 	private Type buildAttributeConverterTypeAdapter() {
 		// todo : validate the number of columns present here?
 
-		final Class entityAttributeJavaType = attributeConverterDefinition.getEntityAttributeType();
+		final Class entityAttributeJavaType = attributeConverterDescriptor.getDomainType();
-		final Class databaseColumnJavaType = attributeConverterDefinition.getDatabaseColumnType();
+		final Class databaseColumnJavaType = attributeConverterDescriptor.getJdbcType();
 
 
 		// resolve the JavaTypeDescriptor ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -523,14 +524,14 @@ public class SimpleValue implements KeyValue {
 		// and finally construct the adapter, which injects the AttributeConverter calls into the binding/extraction
 		// 		process...
 		final SqlTypeDescriptor sqlTypeDescriptorAdapter = new AttributeConverterSqlTypeDescriptorAdapter(
-				attributeConverterDefinition.getAttributeConverter(),
+				attributeConverterDescriptor.getAttributeConverter(),
 				sqlTypeDescriptor,
 				intermediateJavaTypeDescriptor
 		);
 
 		// todo : cache the AttributeConverterTypeAdapter in case that AttributeConverter is applied multiple times.
 
-		final String name = AttributeConverterTypeAdapter.NAME_PREFIX + attributeConverterDefinition.getAttributeConverter().getClass().getName();
+		final String name = AttributeConverterTypeAdapter.NAME_PREFIX + attributeConverterDescriptor.getAttributeConverter().getClass().getName();
 		final String description = String.format(
 				"BasicType adapter for AttributeConverter<%s,%s>",
 				entityAttributeJavaType.getSimpleName(),
@@ -539,7 +540,7 @@ public class SimpleValue implements KeyValue {
 		return new AttributeConverterTypeAdapter(
 				name,
 				description,
-				attributeConverterDefinition.getAttributeConverter(),
+				attributeConverterDescriptor.getAttributeConverter(),
 				sqlTypeDescriptorAdapter,
 				entityAttributeJavaType,
 				databaseColumnJavaType,
@@ -583,8 +584,8 @@ public class SimpleValue implements KeyValue {
 		return getColumnInsertability();
 	}
 
-	public void setJpaAttributeConverterDefinition(AttributeConverterDefinition attributeConverterDefinition) {
+	public void setJpaAttributeConverterDescriptor(AttributeConverterDescriptor attributeConverterDescriptor) {
-		this.attributeConverterDefinition = attributeConverterDefinition;
+		this.attributeConverterDescriptor = attributeConverterDescriptor;
 	}
 
 	private void createParameterImpl() {

hibernate-core/src/test/java/org/hibernate/test/converter/AttributeConverterTest.java

@@ -22,6 +22,7 @@ import org.hibernate.IrrelevantEntity;
 import org.hibernate.Session;
 import org.hibernate.SessionFactory;
 import org.hibernate.boot.MetadataSources;
+import org.hibernate.boot.internal.AttributeConverterDescriptorNonAutoApplicableImpl;
 import org.hibernate.boot.registry.StandardServiceRegistry;
 import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
 import org.hibernate.boot.spi.MetadataImplementor;
@@ -96,8 +97,8 @@ public class AttributeConverterTest extends BaseUnitTestCase {
 		try {
 			MetadataImplementor metadata = (MetadataImplementor) new MetadataSources( ssr ).buildMetadata();
 			SimpleValue simpleValue = new SimpleValue( metadata );
-			simpleValue.setJpaAttributeConverterDefinition(
+			simpleValue.setJpaAttributeConverterDescriptor(
-					new AttributeConverterDefinition( new StringClobConverter(), true )
+					new AttributeConverterDescriptorNonAutoApplicableImpl( new StringClobConverter() )
 			);
 			simpleValue.setTypeUsingReflection( IrrelevantEntity.class.getName(), "name" );
 

hibernate-core/src/test/java/org/hibernate/test/converter/generics/ParameterizedAttributeConverterParameterTypeTest.java

@@ -8,14 +8,29 @@ package org.hibernate.test.converter.generics;
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.StringTokenizer;
 import javax.persistence.AttributeConverter;
+import javax.persistence.Converter;
+import javax.persistence.Entity;
+import javax.persistence.Id;
 
+import org.hibernate.boot.Metadata;
+import org.hibernate.boot.MetadataSources;
+import org.hibernate.boot.registry.StandardServiceRegistry;
+import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
 import org.hibernate.cfg.AttributeConverterDefinition;
+import org.hibernate.internal.util.StringHelper;
+import org.hibernate.mapping.PersistentClass;
+import org.hibernate.mapping.Property;
+import org.hibernate.type.descriptor.converter.AttributeConverterTypeAdapter;
 
 import org.hibernate.testing.TestForIssue;
 import org.hibernate.testing.junit4.BaseUnitTestCase;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
 import org.junit.Test;
 
+import static org.hibernate.testing.junit4.ExtraAssertions.assertTyping;
 import static org.junit.Assert.assertEquals;
 
 /**
@@ -27,6 +42,20 @@ import static org.junit.Assert.assertEquals;
  */
 public class ParameterizedAttributeConverterParameterTypeTest extends BaseUnitTestCase {
 
+	private static StandardServiceRegistry ssr;
+
+	@BeforeClass
+	public static void beforeClass() {
+		ssr = new StandardServiceRegistryBuilder().build();
+	}
+
+	@AfterClass
+	public static void afterClass() {
+		if ( ssr != null ) {
+			StandardServiceRegistryBuilder.destroy( ssr );
+		}
+	}
+
 	public static class CustomAttributeConverter implements AttributeConverter<List<String>, Integer> {
 		@Override
 		public Integer convertToDatabaseColumn(List<String> attribute) {
@@ -46,4 +75,119 @@ public class ParameterizedAttributeConverterParameterTypeTest extends BaseUnitTe
 		assertEquals( List.class, def.getEntityAttributeType() );
 	}
 
+	@Test
+	@TestForIssue( jiraKey = "HHH-10050" )
+	public void testNestedTypeParameterAutoApplication() {
+		final Metadata metadata = new MetadataSources( ssr )
+				.addAnnotatedClass( SampleEntity.class )
+				.getMetadataBuilder()
+				.applyAttributeConverter( IntegerListConverter.class )
+				.applyAttributeConverter( StringListConverter.class )
+				.build();
+
+		// lets make sure the auto-apply converters were applied properly...
+		PersistentClass pc = metadata.getEntityBinding( SampleEntity.class.getName() );
+
+		{
+			Property prop = pc.getProperty( "someStrings" );
+			AttributeConverterTypeAdapter type = assertTyping(
+					AttributeConverterTypeAdapter.class,
+					prop.getType()
+			);
+			assertTyping(
+					StringListConverter.class,
+					type.getAttributeConverter()
+			);
+		}
+
+		{
+			Property prop = pc.getProperty( "someIntegers" );
+			AttributeConverterTypeAdapter type = assertTyping(
+					AttributeConverterTypeAdapter.class,
+					prop.getType()
+			);
+			assertTyping(
+					IntegerListConverter.class,
+					type.getAttributeConverter()
+			);
+		}
+	}
+
+	@Entity
+	public static class SampleEntity {
+		@Id
+		private Integer id;
+		private List<String> someStrings;
+		private List<Integer> someIntegers;
+	}
+
+	@Converter( autoApply = true )
+	public static class IntegerListConverter implements AttributeConverter<List<Integer>,String> {
+		@Override
+		public String convertToDatabaseColumn(List<Integer> attribute) {
+			if ( attribute == null || attribute.isEmpty() ) {
+				return null;
+			}
+			else {
+				return StringHelper.join( ", ", attribute );
+			}
+		}
+
+		@Override
+		public List<Integer> convertToEntityAttribute(String dbData) {
+			if ( dbData == null ) {
+				return null;
+			}
+
+			dbData = dbData.trim();
+			if ( dbData.length() == 0 ) {
+				return null;
+			}
+
+			final List<Integer> integers = new ArrayList<Integer>();
+			final StringTokenizer tokens = new StringTokenizer( dbData, "," );
+
+			while ( tokens.hasMoreTokens() ) {
+				integers.add( Integer.valueOf( tokens.nextToken() ) );
+			}
+
+			return integers;
+		}
+	}
+
+	@Converter( autoApply = true )
+	public static class StringListConverter implements AttributeConverter<List<String>,String> {
+		@Override
+		public String convertToDatabaseColumn(List<String> attribute) {
+			if ( attribute == null || attribute.isEmpty() ) {
+				return null;
+			}
+			else {
+				return StringHelper.join( ", ", attribute );
+			}
+		}
+
+		@Override
+		public List<String> convertToEntityAttribute(String dbData) {
+			if ( dbData == null ) {
+				return null;
+			}
+
+			dbData = dbData.trim();
+			if ( dbData.length() == 0 ) {
+				return null;
+			}
+
+			final List<String> strings = new ArrayList<String>();
+			final StringTokenizer tokens = new StringTokenizer( dbData, "," );
+
+			while ( tokens.hasMoreTokens() ) {
+				strings.add( tokens.nextToken() );
+			}
+
+			return strings;
+		}
+	}
+
+
 }

libraries.gradle

@@ -27,7 +27,7 @@ ext {
             // Annotations
             commons_annotations: 'org.hibernate.common:hibernate-commons-annotations:5.0.0.Final',
             jandex:         'org.jboss:jandex:2.0.0.CR1',
-            classmate:      'com.fasterxml:classmate:0.8.0',
+            classmate:      'com.fasterxml:classmate:1.3.0',
 
             // Woodstox
             woodstox:           "org.codehaus.woodstox:woodstox-core-asl:4.3.0",