private FilterSource[] determineFilterSources(PluralAssociationAttribute associationAttribute) {
AnnotationInstance filtersAnnotation =
JandexHelper.getSingleAnnotation(
associationAttribute.annotations(), HibernateDotNames.FILTERS);
List<FilterSource> filterSourceList = new ArrayList<FilterSource>();
if (filtersAnnotation != null) {
AnnotationInstance[] annotationInstances = filtersAnnotation.value().asNestedArray();
for (AnnotationInstance filterAnnotation : annotationInstances) {
FilterSource filterSource =
new FilterSourceImpl(filterAnnotation, entityClass.getLocalBindingContext());
filterSourceList.add(filterSource);
}
}
AnnotationInstance filterAnnotation =
JandexHelper.getSingleAnnotation(
associationAttribute.annotations(), HibernateDotNames.FILTER);
if (filterAnnotation != null) {
FilterSource filterSource =
new FilterSourceImpl(filterAnnotation, entityClass.getLocalBindingContext());
filterSourceList.add(filterSource);
}
if (filterSourceList.isEmpty()) {
return null;
} else {
return filterSourceList.toArray(new FilterSource[filterSourceList.size()]);
}
}
@Override
public FetchTiming getFetchTiming() {
if (associationAttribute.isExtraLazy()) {
return FetchTiming.EXTRA_LAZY;
} else if (associationAttribute.isLazy()) {
return FetchTiming.DELAYED;
} else {
return FetchTiming.IMMEDIATE;
}
}
@Override
public boolean usesJoinTable() {
if (associationAttribute.getMappedBy() != null) {
throw new IllegalStateException(
"Cannot determine if a join table is used because plural attribute is not the owner.");
}
// By default, a unidirectional one-to-many (i.e., with mappedBy == null) uses a join table,
// unless it has join columns defined.
return associationAttribute.getJoinTableAnnotation() != null
|| (associationAttribute.getJoinTableAnnotation() == null
&& associationAttribute.getJoinColumnValues().size() == 0);
}
@Override
public TableSpecificationSource getCollectionTableSpecificationSource() {
// todo - see org.hibernate.metamodel.internal.Binder#bindOneToManyCollectionKey
// todo - needs to cater for @CollectionTable and @JoinTable
if (associationAttribute.getMappedBy() != null) {
throw new IllegalStateException(
"Cannot get collection table because this association is not the owner.");
}
final AnnotationInstance joinTableAnnotation = associationAttribute.getJoinTableAnnotation();
return joinTableAnnotation == null
? null
: new TableSourceImpl(joinTableAnnotation, entityClass.getLocalBindingContext());
}
private static PluralAttributeElementSource determineElementSource(
AttributeSource ownerAttributeSource,
PluralAttributeSourceImpl pluralAttributeSource,
ConfiguredClass entityClass,
String relativePath) {
if (ownerAttributeSource == null) {
throw new AssertionFailure("ownerAssociationSource must be non-null.");
}
final PluralAssociationAttribute associationAttribute =
pluralAttributeSource.pluralAssociationAttribute();
switch (pluralAttributeSource.pluralAssociationAttribute().getNature()) {
case MANY_TO_MANY:
return associationAttribute.getMappedBy() == null
? new ManyToManyPluralAttributeElementSourceImpl(
pluralAttributeSource, relativePath, entityClass.getLocalBindingContext())
: new ManyToManyMappedByPluralAttributeElementSourceImpl(
pluralAttributeSource, relativePath);
case MANY_TO_ANY:
return new ManyToAnyPluralAttributeElementSourceImpl(pluralAttributeSource, relativePath);
case ONE_TO_MANY:
boolean usesJoinTable =
ownerAttributeSource.isSingular()
? ((ToOneAttributeSource) ownerAttributeSource).getContainingTableName() != null
: ((PluralAttributeSource) ownerAttributeSource).usesJoinTable();
if (usesJoinTable) {
return associationAttribute.getMappedBy() == null
? new ManyToManyPluralAttributeElementSourceImpl(
pluralAttributeSource, relativePath, entityClass.getLocalBindingContext())
: new ManyToManyMappedByPluralAttributeElementSourceImpl(
pluralAttributeSource, relativePath);
} else {
return associationAttribute.getMappedBy() == null
? new OneToManyPluralAttributeElementSourceImpl(pluralAttributeSource, relativePath)
: new OneToManyMappedByPluralAttributeElementSourceImpl(
pluralAttributeSource, relativePath);
}
case ELEMENT_COLLECTION_BASIC:
return new BasicPluralAttributeElementSourceImpl(
associationAttribute, entityClass, relativePath);
case ELEMENT_COLLECTION_EMBEDDABLE:
{
// TODO: cascadeStyles?
return new CompositePluralAttributeElementSourceImpl(
associationAttribute, entityClass, relativePath);
}
}
throw new AssertionError(
"Unexpected attribute nature for a association:" + associationAttribute.getNature());
}
private static List<RelationalValueSource> createRelationalValueSources(
PluralAssociationAttribute attribute) {
AnnotationInstance columnAnnotation =
JandexHelper.getSingleAnnotation(attribute.annotations(), HibernateDotNames.INDEX_COLUMN);
if (columnAnnotation == null) {
columnAnnotation =
JandexHelper.getSingleAnnotation(attribute.annotations(), JPADotNames.ORDER_COLUMN);
}
if (columnAnnotation == null) {
columnAnnotation =
JandexHelper.getSingleAnnotation(attribute.annotations(), JPADotNames.MAP_KEY_COLUMN);
}
Column indexColumn = new Column(columnAnnotation);
return Collections.singletonList((RelationalValueSource) new ColumnSourceImpl(indexColumn));
}
@Override
public ValueHolder<Class<?>> getElementClassReference() {
// needed for arrays
Class<?> attributeType = associationAttribute.getAttributeType();
if (attributeType.isArray()) {
return new ValueHolder<Class<?>>(attributeType.getComponentType());
} else {
return null;
}
}
public PluralAttributeSourceImpl(
final PluralAssociationAttribute associationAttribute,
final ConfiguredClass entityClass,
final String relativePath) {
this.associationAttribute = associationAttribute;
this.entityClass = entityClass;
this.keySource = new PluralAttributeKeySourceImpl(associationAttribute);
this.typeSource = new HibernateTypeSourceImpl(associationAttribute);
this.nature = associationAttribute.getPluralAttributeNature();
this.attributePath =
StringHelper.isEmpty(relativePath)
? associationAttribute.getName()
: relativePath + "." + associationAttribute.getName();
if (associationAttribute.getMappedBy() == null) {
this.ownerAttributeSource = this;
this.elementSource = determineElementSource(this, this, entityClass, attributePath);
}
this.filterSources = determineFilterSources(associationAttribute);
}
@Override
public PluralAttributeElementSource resolvePluralAttributeElementSource(
AttributeSourceResolutionContext context) {
if (elementSource == null) {
// elementSource has not been initialized, so we need to resolve it using the
// association owner.
// Get the owner attribute source that maps the opposite side of the association.
ownerAttributeSource =
context.resolveAttributeSource(
associationAttribute.getReferencedEntityType(), associationAttribute.getMappedBy());
// Initialize resolved entitySource.
elementSource =
determineElementSource(
ownerAttributeSource,
this,
entityClass,
""); // TODO not sure what relativePath should be here
if (!MappedByAssociationSource.class.isInstance(elementSource)) {
throw new AssertionFailure("expected a mappedBy association.");
}
final AssociationSource ownerAssociationSource;
if (ownerAttributeSource.isSingular()) {
ownerAssociationSource = (ToOneAttributeSource) ownerAttributeSource;
} else {
final PluralAttributeSource pluralAttributeSource =
(PluralAttributeSource) ownerAttributeSource;
if (!AssociationSource.class.isInstance(pluralAttributeSource.getElementSource())) {
throw new AssertionFailure("Owner is not an association.");
}
ownerAssociationSource = (AssociationSource) pluralAttributeSource.getElementSource();
}
ownerAssociationSource.addMappedByAssociationSource(
(MappedByAssociationSource) elementSource);
}
return elementSource;
}
@Override
public boolean isSorted() {
return associationAttribute.isSorted();
}
@Override
public String getComparatorName() {
return associationAttribute.getComparatorName();
}
@Override
public boolean isMutable() {
return associationAttribute.isMutable();
}
@Override
public String getOrder() {
return elementSource.getNature() == PluralAttributeElementSource.Nature.MANY_TO_MANY
? null
: associationAttribute.getOrderBy();
}
@Override
public Caching getCaching() {
return associationAttribute.getCaching();
}
@Override
public CustomSQL getCustomSqlDeleteAll() {
return associationAttribute.getCustomDeleteAll();
}
@Override
public int getBatchSize() {
return associationAttribute.getBatchSize();
}
@Override
public CustomSQL getCustomSqlInsert() {
return associationAttribute.getCustomInsert();
}
@Override
public String getCustomLoaderName() {
return associationAttribute.getCustomLoaderName();
}
@Override
public String getMappedBy() {
return associationAttribute.getMappedBy();
}
@Override
public String getWhere() {
return associationAttribute.getWhereClause();
}
@Override
public String getCustomPersisterClassName() {
return associationAttribute.getCustomPersister();
}
@Override
public FetchStyle getFetchStyle() {
return associationAttribute.getFetchStyle();
}
@Override
public String getPropertyAccessorName() {
return associationAttribute.getAccessType();
}
@Override
public boolean isIncludedInOptimisticLocking() {
return associationAttribute.isOptimisticLockable();
}
@Override
public CustomSQL getCustomSqlUpdate() {
return associationAttribute.getCustomUpdate();
}
@Override
public String getCollectionTableCheck() {
return associationAttribute.getCheckCondition();
}