minor cleanups + add a couple of @Deprecated annotations

hibernate-core/src/main/java/org/hibernate/boot/model/source/internal/hbm/ModelBinder.java

@@ -161,6 +161,7 @@ import org.hibernate.usertype.ParameterizedType;
 import org.hibernate.usertype.UserType;
 
 import static org.hibernate.internal.util.collections.CollectionHelper.isEmpty;
+import static org.hibernate.mapping.SimpleValue.DEFAULT_ID_GEN_STRATEGY;
 
 /**
  * Responsible for coordinating the binding of all information inside entity tags ({@code <class/>}, etc).
@@ -804,13 +805,11 @@ public class ModelBinder {
 		if ( StringHelper.isNotEmpty( unsavedValue ) ) {
 			identifierValue.setNullValue( unsavedValue );
 		}
+		else if ( DEFAULT_ID_GEN_STRATEGY.equals( identifierValue.getIdentifierGeneratorStrategy() ) ) {
+			identifierValue.setNullValue( "undefined" );
+		}
 		else {
-			if ( "assigned".equals( identifierValue.getIdentifierGeneratorStrategy() ) ) {
+			identifierValue.setNullValue( null );
-				identifierValue.setNullValue( "undefined" );
-			}
-			else {
-				identifierValue.setNullValue( null );
-			}
 		}
 	}
 

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

@@ -75,7 +75,6 @@ import org.hibernate.cfg.annotations.PropertyBinder;
 import org.hibernate.cfg.annotations.QueryBinder;
 import org.hibernate.engine.OptimisticLockStyle;
 import org.hibernate.engine.spi.FilterDefinition;
-import org.hibernate.id.IdentifierGenerator;
 import org.hibernate.internal.CoreMessageLogger;
 import org.hibernate.internal.util.GenericsHelper;
 import org.hibernate.mapping.Any;
@@ -1872,10 +1871,10 @@ public final class AnnotationBinder {
 			GeneratedValue generatedValue) {
 		if ( isComponent ) {
 			//a component must not have any generator
-			return "assigned";
+			return DEFAULT_ID_GEN_STRATEGY;
 		}
 		else {
-			return generatedValue == null ? "assigned" : generatorType( generatedValue, entityXClass, context );
+			return generatedValue == null ? DEFAULT_ID_GEN_STRATEGY : generatorType( generatedValue, entityXClass, context );
 		}
 	}
 

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

@@ -76,6 +76,7 @@ import static org.hibernate.cfg.AnnotatedColumn.buildColumnOrFormulaFromAnnotati
 import static org.hibernate.internal.util.StringHelper.isNotEmpty;
 
 import static org.hibernate.internal.util.StringHelper.qualify;
+import static org.hibernate.mapping.SimpleValue.DEFAULT_ID_GEN_STRATEGY;
 import static org.hibernate.property.access.spi.BuiltInPropertyAccessStrategies.EMBEDDED;
 import static org.hibernate.property.access.spi.BuiltInPropertyAccessStrategies.NOOP;
 import static org.hibernate.property.access.spi.BuiltInPropertyAccessStrategies.interpret;
@@ -362,19 +363,18 @@ public class BinderHelper {
 			final Component copy = new Component( context, component );
 			copy.setComponentClassName( component.getComponentClassName() );
 			copy.setEmbedded( component.isEmbedded() );
-			for ( Property property1 : component.getProperties()) {
+			for ( Property subproperty : component.getProperties() ) {
-				copy.addProperty( cloneProperty(ownerEntity, context, property1) );
+				copy.addProperty( cloneProperty( ownerEntity, context, subproperty ) );
 			}
 			copy.sortProperties();
 			final Property result = new SyntheticProperty();
-			result.setName(property.getName());
+			result.setName( property.getName() );
-			result.setPersistentClass(ownerEntity);
+			result.setPersistentClass( ownerEntity );
 			result.setUpdateable( false );
 			result.setInsertable( false );
 			result.setValue(copy);
-			final Property clone = result;
+			result.setPropertyAccessorName( property.getPropertyAccessorName() );
-			clone.setPropertyAccessorName( property.getPropertyAccessorName() );
+			return result;
-			return clone;
 		}
 		else {
 			final Property clone = shallowCopy( property );
@@ -792,7 +792,7 @@ public class BinderHelper {
 			//checkIfMatchingGenerator(definition, generatorType, generatorName);
 			parameters.putAll( definition.getParameters() );
 		}
-		if ( "assigned".equals( generatorType ) ) {
+		if ( DEFAULT_ID_GEN_STRATEGY.equals( generatorType ) ) {
 			id.setNullValue( "undefined" );
 		}
 		id.setIdentifierGeneratorParameters( parameters );
@@ -839,7 +839,7 @@ public class BinderHelper {
 		final GeneratedValue generatedValue = idXProperty.getAnnotation( GeneratedValue.class );
 		if ( generatedValue == null ) {
 			// this should really never happen, but it's easy to protect against it...
-			return new IdentifierGeneratorDefinition( "assigned", "assigned" );
+			return new IdentifierGeneratorDefinition( DEFAULT_ID_GEN_STRATEGY, DEFAULT_ID_GEN_STRATEGY );
 		}
 
 		return IdentifierGeneratorDefinition.createImplicit(

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

@@ -106,16 +106,13 @@ public class IdBagBinder extends BagBinder {
 
 		final String namedGenerator = collectionIdAnn.generator();
 
-		if ( "identity".equals( namedGenerator ) ) {
+		switch (namedGenerator) {
-			throw new MappingException( "IDENTITY generation not supported for CollectionId" );
+			case "identity":
-		}
+				throw new MappingException("IDENTITY generation not supported for CollectionId");
-
+			case "assigned":
-		if ( "assigned".equals( namedGenerator ) ) {
+				throw new MappingException("Assigned generation not supported for CollectionId");
-			throw new MappingException( "Assigned generation not supported for CollectionId" );
+			case "native":
-		}
+				throw new MappingException("Native generation not supported for CollectionId");
-
-		if ( "native".equals( namedGenerator ) ) {
-			throw new MappingException( "Native generation not supported for CollectionId" );
 		}
 
 		final String generatorName;

hibernate-core/src/main/java/org/hibernate/id/factory/IdentifierGeneratorFactory.java

@@ -23,15 +23,6 @@ import jakarta.persistence.GenerationType;
  * @author Steve Ebersole
  */
 public interface IdentifierGeneratorFactory extends Service {
-	/**
-	 * Get the dialect.
-	 * @deprecated should be removed
-	 *
-	 * @return the dialect
-	 */
-	@Deprecated(since = "6.2", forRemoval = true)
-	Dialect getDialect();
-
 	/**
 	 * Create an IdentifierGenerator based on the given details
 	 */
@@ -68,5 +59,14 @@ public interface IdentifierGeneratorFactory extends Service {
 	 * {@link #createIdentifierGenerator(GenerationType, String, String, JavaType, Properties, GeneratorDefinitionResolver)}
 	 */
 	@Deprecated(since = "6.0")
-	Class getIdentifierGeneratorClass(String strategy);
+	Class<?> getIdentifierGeneratorClass(String strategy);
+
+	/**
+	 * Get the dialect.
+	 * @deprecated should be removed
+	 *
+	 * @return the dialect
+	 */
+	@Deprecated(since = "6.2", forRemoval = true)
+	Dialect getDialect();
 }

hibernate-core/src/main/java/org/hibernate/id/factory/spi/GenerationTypeStrategy.java

@@ -17,7 +17,7 @@ import org.hibernate.type.descriptor.java.JavaType;
  * Delegate for defining how to handle the various types of
  * {@link GenerationType} possibilities.
  *
- * @apiNote no GenerationType indicates `hbm.xml` mapping
+ * @apiNote no GenerationType indicates {@code hbm.xml} mapping
  */
 public interface GenerationTypeStrategy {
 	IdentifierGenerator createIdentifierGenerator(

hibernate-core/src/main/java/org/hibernate/jpa/spi/IdentifierGeneratorStrategyProvider.java

@@ -6,6 +6,8 @@
  */
 package org.hibernate.jpa.spi;
 
+import org.hibernate.Remove;
+
 import java.util.Map;
 
 /**
@@ -16,7 +18,7 @@ import java.util.Map;
  *
  * @deprecated supply a {@link org.hibernate.id.factory.spi.GenerationTypeStrategyRegistration} instead
  */
-@Deprecated(since = "6.0")
+@Deprecated(since = "6.0") @Remove
 public interface IdentifierGeneratorStrategyProvider {
 	/**
 	 * set of strategy / generator class pairs to register as accepted strategies

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

@@ -21,8 +21,6 @@ import org.hibernate.tuple.InMemoryGenerator;
  */
 public interface KeyValue extends Value {
 
-	boolean isIdentityColumn(IdentifierGeneratorFactory identifierGeneratorFactory, Dialect dialect);
-	
 	ForeignKey createForeignKeyOfEntity(String entityName);
 	
 	boolean isCascadeDeleteEnabled();
@@ -39,7 +37,7 @@ public interface KeyValue extends Value {
 	/**
 	 * @deprecated Use {@link #createGenerator(IdentifierGeneratorFactory, Dialect, RootClass)} instead.
 	 */
-	@Deprecated
+	@Deprecated(since="6.2")
 	default IdentifierGenerator createIdentifierGenerator(
 			IdentifierGeneratorFactory identifierGeneratorFactory,
 			Dialect dialect,
@@ -52,7 +50,7 @@ public interface KeyValue extends Value {
 	/**
 	 * @deprecated Use {@link #createGenerator(IdentifierGeneratorFactory, Dialect, RootClass)} instead.
 	 */
-	@Deprecated
+	@Deprecated(since="6.2")
 	default IdentifierGenerator createIdentifierGenerator(
 			IdentifierGeneratorFactory identifierGeneratorFactory,
 			Dialect dialect,
@@ -60,4 +58,10 @@ public interface KeyValue extends Value {
 		return (IdentifierGenerator) createGenerator( identifierGeneratorFactory, dialect, rootClass );
 	}
 
+	/**
+	 * We need to add {@code Column.isIdentity()}.
+	 */
+	@Deprecated(since="6.2")
+	boolean isIdentityColumn(IdentifierGeneratorFactory identifierGeneratorFactory, Dialect dialect);
+
 }

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

@@ -445,6 +445,7 @@ public abstract class SimpleValue implements KeyValue {
 		this.identifierGeneratorStrategy = identifierGeneratorStrategy;
 	}
 
+	@Deprecated
 	public boolean isIdentityColumn(IdentifierGeneratorFactory identifierGeneratorFactory, Dialect dialect) {
 		return IdentityGenerator.class.isAssignableFrom(
 				identifierGeneratorFactory.getIdentifierGeneratorClass( identifierGeneratorStrategy )

hibernate-core/src/main/java/org/hibernate/tool/schema/internal/StandardTableExporter.java

@@ -61,8 +61,12 @@ public class StandardTableExporter implements Exporter<Table> {
 
 			boolean isPrimaryKeyIdentity = table.hasPrimaryKey()
 					&& table.getIdentifierValue() != null
-					&& table.getIdentifierValue().isIdentityColumn( ( (MetadataImplementor) metadata ).getMetadataBuildingOptions().getIdentifierGeneratorFactory(), dialect );
+					&& table.getIdentifierValue().isIdentityColumn(
-			// this is the much better form moving forward as we move to metamodel
+							( (MetadataImplementor) metadata ).getMetadataBuildingOptions()
+									.getIdentifierGeneratorFactory(),
+							dialect
+					);
+			// TODO: this is the much better form moving forward as we move to metamodel
 			//boolean isPrimaryKeyIdentity = hasPrimaryKey
 			//				&& table.getPrimaryKey().getColumnSpan() == 1
 			//				&& table.getPrimaryKey().getColumn( 0 ).isIdentity();