EntityValuedFetchable add isOptional and isUnwrapproxy methods

hibernate-core/src/main/java/org/hibernate/metamodel/mapping/internal/EntityCollectionPart.java

@@ -63,7 +63,6 @@ public class EntityCollectionPart
 			MappingModelCreationProcess creationProcess) {
 		this.navigableRole = collectionDescriptor.getNavigableRole().appendContainer( nature.getName() );
 		this.collectionDescriptor = collectionDescriptor;
-
 		this.nature = nature;
 		this.entityMappingType = entityMappingType;
 	}
@@ -163,6 +162,16 @@ public class EntityCollectionPart
 		return new EntityFetchJoinedImpl( fetchParent, this, tableGroup, selected, fetchablePath, creationState );
 	}
 
+	@Override
+	public boolean isOptional() {
+		return false;
+	}
+
+	@Override
+	public boolean isUnwrapProxy() {
+		return false;
+	}
+
 	@Override
 	public <T> DomainResult<T> createDomainResult(
 			NavigablePath navigablePath,

hibernate-core/src/main/java/org/hibernate/metamodel/mapping/internal/ToOneAttributeMapping.java

@@ -1050,6 +1050,7 @@ public class ToOneAttributeMapping
 		return isNullable;
 	}
 
+	@Override
 	public boolean isOptional(){
 		return isOptional;
 	}
@@ -1062,6 +1063,7 @@ public class ToOneAttributeMapping
 		return isIgnoreNotFound;
 	}
 
+	@Override
 	public boolean isUnwrapProxy() {
 		return unwrapProxy;
 	}

hibernate-core/src/main/java/org/hibernate/sql/results/graph/entity/EntityValuedFetchable.java

@@ -25,4 +25,8 @@ public interface EntityValuedFetchable extends Fetchable, EntityValuedModelPart
 			boolean selected,
 			String resultVariable,
 			DomainResultCreationState creationState);
+
+	boolean isOptional();
+
+	boolean isUnwrapProxy();
 }

hibernate-core/src/main/java/org/hibernate/sql/results/graph/entity/internal/EntityDelayedFetchInitializer.java

@@ -8,11 +8,15 @@ package org.hibernate.sql.results.graph.entity.internal;
 
 import java.util.function.Consumer;
 
+import org.hibernate.LockMode;
 import org.hibernate.NotYetImplementedFor6Exception;
 import org.hibernate.bytecode.enhance.spi.LazyPropertyInitializer;
 import org.hibernate.engine.spi.EntityKey;
 import org.hibernate.engine.spi.PersistenceContext;
+import org.hibernate.engine.spi.SharedSessionContractImplementor;
+import org.hibernate.event.spi.EventSource;
 import org.hibernate.internal.log.LoggingHelper;
+import org.hibernate.loader.entity.CacheEntityLoaderHelper;
 import org.hibernate.metamodel.mapping.ModelPart;
 import org.hibernate.metamodel.mapping.internal.ToOneAttributeMapping;
 import org.hibernate.persister.entity.EntityPersister;
@@ -21,8 +25,10 @@ import org.hibernate.query.NavigablePath;
 import org.hibernate.sql.results.graph.AbstractFetchParentAccess;
 import org.hibernate.sql.results.graph.DomainResultAssembler;
 import org.hibernate.sql.results.graph.entity.EntityInitializer;
+import org.hibernate.sql.results.graph.entity.EntityValuedFetchable;
 import org.hibernate.sql.results.graph.entity.LoadingEntityEntry;
 import org.hibernate.sql.results.jdbc.spi.RowProcessingState;
+import org.hibernate.stat.spi.StatisticsImplementor;
 
 /**
  * @author Andrea Boriero
@@ -31,7 +37,7 @@ import org.hibernate.sql.results.jdbc.spi.RowProcessingState;
 public class EntityDelayedFetchInitializer extends AbstractFetchParentAccess implements EntityInitializer {
 
 	private final NavigablePath navigablePath;
-	private final ToOneAttributeMapping referencedModelPart;
+	private final EntityValuedFetchable referencedModelPart;
 	private final DomainResultAssembler identifierAssembler;
 
 	private Object entityInstance;
@@ -39,7 +45,7 @@ public class EntityDelayedFetchInitializer extends AbstractFetchParentAccess imp
 
 	public EntityDelayedFetchInitializer(
 			NavigablePath fetchedNavigable,
-			ToOneAttributeMapping referencedModelPart,
+			EntityValuedFetchable referencedModelPart,
 			DomainResultAssembler identifierAssembler) {
 		this.navigablePath = fetchedNavigable;
 		this.referencedModelPart = referencedModelPart;