private EntityMetamodel getDeclarerEntityMetamodel(IdentifiableType<?> ownerType) {
final Type.PersistenceType persistenceType = ownerType.getPersistenceType();
if (persistenceType == Type.PersistenceType.ENTITY) {
return context
.getSessionFactory()
.getEntityPersister(ownerType.getJavaType().getName())
.getEntityMetamodel();
} else if (persistenceType == Type.PersistenceType.MAPPED_SUPERCLASS) {
PersistentClass persistentClass =
context.getPersistentClassHostingProperties((MappedSuperclassTypeImpl<?>) ownerType);
return context
.getSessionFactory()
.getEntityPersister(persistentClass.getClassName())
.getEntityMetamodel();
} else {
throw new AssertionFailure(
"Cannot get the metamodel for PersistenceType: " + persistenceType);
}
}
@SuppressWarnings("unchecked")
private <Y> Type<Y> getMetaModelType(ValueContext typeContext) {
switch (typeContext.getValueClassification()) {
case BASIC:
{
return new BasicTypeImpl<Y>(typeContext.getBindableType(), Type.PersistenceType.BASIC);
}
case ENTITY:
{
final org.hibernate.type.EntityType type = (EntityType) typeContext.getValue().getType();
return (Type<Y>) context.locateEntityType(type.getAssociatedEntityName());
}
case EMBEDDABLE:
{
final Component component = (Component) typeContext.getValue();
final EmbeddableTypeImpl<Y> embeddableType =
new EmbeddableTypeImpl<Y>(
typeContext.getBindableType(),
typeContext.getAttributeMetadata().getOwnerType(),
(ComponentType) typeContext.getValue().getType());
context.registerEmbeddedableType(embeddableType);
final Iterator<Property> subProperties = component.getPropertyIterator();
while (subProperties.hasNext()) {
final Property property = subProperties.next();
final AttributeImplementor<Y, Object> attribute =
buildAttribute(embeddableType, property);
if (attribute != null) {
embeddableType.getBuilder().addAttribute(attribute);
}
}
embeddableType.lock();
return embeddableType;
}
default:
{
throw new AssertionFailure("Unknown type : " + typeContext.getValueClassification());
}
}
}
/**
* Here is most of the nuts and bolts of this factory, where we interpret the known JPA metadata
* against the known Hibernate metadata and build a descriptor for the attribute.
*
* @param attributeContext The attribute to be described
* @param memberResolver Strategy for how to resolve the member defining the attribute.
* @param <X> The owner type
* @param <Y> The attribute type
* @return The attribute description
*/
@SuppressWarnings({"unchecked"})
private <X, Y> AttributeMetadata<X, Y> determineAttributeMetadata(
AttributeContext<X> attributeContext, MemberResolver memberResolver) {
LOG.trace(
"Starting attribute metadata determination ["
+ attributeContext.getPropertyMapping().getName()
+ "]");
final Member member = memberResolver.resolveMember(attributeContext);
LOG.trace(" Determined member [" + member + "]");
final Value value = attributeContext.getPropertyMapping().getValue();
final org.hibernate.type.Type type = value.getType();
LOG.trace(
" Determined type [name="
+ type.getName()
+ ", class="
+ type.getClass().getName()
+ "]");
if (type.isAnyType()) {
// ANY mappings are currently not supported in the JPA metamodel; see HHH-6589
if (context.isIgnoreUnsupported()) {
return null;
} else {
throw new UnsupportedOperationException("ANY not supported");
}
} else if (type.isAssociationType()) {
// collection or entity
if (type.isEntityType()) {
// entity
return new SingularAttributeMetadataImpl<X, Y>(
attributeContext.getPropertyMapping(),
attributeContext.getOwnerType(),
member,
determineSingularAssociationAttributeType(member));
}
// collection
if (value instanceof Collection) {
final Collection collValue = (Collection) value;
final Value elementValue = collValue.getElement();
final org.hibernate.type.Type elementType = elementValue.getType();
// First, determine the type of the elements and use that to help determine the
// collection type)
final Attribute.PersistentAttributeType elementPersistentAttributeType;
final Attribute.PersistentAttributeType persistentAttributeType;
if (elementType.isAnyType()) {
throw new UnsupportedOperationException("collection of any not supported yet");
}
final boolean isManyToMany = isManyToMany(member);
if (elementValue instanceof Component) {
elementPersistentAttributeType = Attribute.PersistentAttributeType.EMBEDDED;
persistentAttributeType = Attribute.PersistentAttributeType.ELEMENT_COLLECTION;
} else if (elementType.isAssociationType()) {
elementPersistentAttributeType =
isManyToMany
? Attribute.PersistentAttributeType.MANY_TO_MANY
: Attribute.PersistentAttributeType.ONE_TO_MANY;
persistentAttributeType = elementPersistentAttributeType;
} else {
elementPersistentAttributeType = Attribute.PersistentAttributeType.BASIC;
persistentAttributeType = Attribute.PersistentAttributeType.ELEMENT_COLLECTION;
}
final Attribute.PersistentAttributeType keyPersistentAttributeType;
// Finally, we determine the type of the map key (if needed)
if (value instanceof Map) {
final Value keyValue = ((Map) value).getIndex();
final org.hibernate.type.Type keyType = keyValue.getType();
if (keyType.isAnyType())
throw new UnsupportedOperationException("collection of any not supported yet");
if (keyValue instanceof Component)
keyPersistentAttributeType = Attribute.PersistentAttributeType.EMBEDDED;
else if (keyType.isAssociationType())
keyPersistentAttributeType = Attribute.PersistentAttributeType.MANY_TO_ONE;
else keyPersistentAttributeType = Attribute.PersistentAttributeType.BASIC;
} else keyPersistentAttributeType = null;
return new PluralAttributeMetadataImpl(
attributeContext.getPropertyMapping(),
attributeContext.getOwnerType(),
member,
persistentAttributeType,
elementPersistentAttributeType,
keyPersistentAttributeType);
} else if (value instanceof OneToMany) {
// TODO : is this even possible??? Really OneToMany should be describing the
// element value within a o.h.mapping.Collection (see logic branch above)
throw new IllegalArgumentException("HUH???");
// final boolean isManyToMany = isManyToMany( member );
// //one to many with FK => entity
// return new PluralAttributeMetadataImpl(
// attributeContext.getPropertyMapping(),
// attributeContext.getOwnerType(),
// member,
// isManyToMany
// ? Attribute.PersistentAttributeType.MANY_TO_MANY
// : Attribute.PersistentAttributeType.ONE_TO_MANY
// value,
// AttributeContext.TypeStatus.ENTITY,
// Attribute.PersistentAttributeType.ONE_TO_MANY,
// null, null, null
// );
}
} else if (attributeContext.getPropertyMapping().isComposite()) {
// component
return new SingularAttributeMetadataImpl<X, Y>(
attributeContext.getPropertyMapping(),
attributeContext.getOwnerType(),
member,
Attribute.PersistentAttributeType.EMBEDDED);
} else {
// basic type
return new SingularAttributeMetadataImpl<X, Y>(
attributeContext.getPropertyMapping(),
attributeContext.getOwnerType(),
member,
Attribute.PersistentAttributeType.BASIC);
}
throw new UnsupportedOperationException(
"oops, we are missing something: " + attributeContext.getPropertyMapping());
}