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Example 1 with SinglePropertyMapper

use of org.hibernate.envers.internal.entities.mapper.SinglePropertyMapper in project hibernate-orm by hibernate.

the class CollectionMetadataGenerator method addOneToManyAttached.

@SuppressWarnings({ "unchecked" })
private void addOneToManyAttached(boolean fakeOneToManyBidirectional) {
    LOG.debugf("Adding audit mapping for property %s.%s: one-to-many collection, using a join column on the referenced entity", referencingEntityName, propertyName);
    // check whether the property has an @IndexColumn or @OrderColumn because its part of an
    // IndexedCollection mapping type.
    final boolean indexed = (propertyValue instanceof IndexedCollection) && ((IndexedCollection) propertyValue).getIndex() != null;
    final String mappedBy = getMappedBy(propertyValue);
    final IdMappingData referencedIdMapping = mainGenerator.getReferencedIdMappingData(referencingEntityName, referencedEntityName, propertyAuditingData, false);
    final IdMappingData referencingIdMapping = referencingEntityConfiguration.getIdMappingData();
    // Generating the id mappers data for the referencing side of the relation.
    final MiddleIdData referencingIdData = createMiddleIdData(referencingIdMapping, mappedBy + "_", referencingEntityName);
    // And for the referenced side. The prefixed mapper won't be used (as this collection isn't persisted
    // in a join table, so the prefix value is arbitrary).
    final MiddleIdData referencedIdData = createMiddleIdData(referencedIdMapping, null, referencedEntityName);
    // Generating the element mapping.
    final MiddleComponentData elementComponentData = new MiddleComponentData(new MiddleRelatedComponentMapper(referencedIdData), 0);
    // Generating the index mapping, if an index exists. It can only exists in case a javax.persistence.MapKey
    // annotation is present on the entity. So the middleEntityXml will be not be used. The queryGeneratorBuilder
    // will only be checked for nullnes.
    MiddleComponentData indexComponentData = addIndex(null, null);
    // Generating the query generator - it should read directly from the related entity.
    final RelationQueryGenerator queryGenerator = new OneAuditEntityQueryGenerator(mainGenerator.getGlobalCfg(), mainGenerator.getVerEntCfg(), mainGenerator.getAuditStrategy(), referencingIdData, referencedEntityName, referencedIdData, isEmbeddableElementType(), mappedBy, isMappedByKey(propertyValue, mappedBy));
    // Creating common mapper data.
    final CommonCollectionMapperData commonCollectionMapperData = new CommonCollectionMapperData(mainGenerator.getVerEntCfg(), referencedEntityName, propertyAuditingData.getPropertyData(), referencingIdData, queryGenerator);
    PropertyMapper fakeBidirectionalRelationMapper;
    PropertyMapper fakeBidirectionalRelationIndexMapper;
    if (fakeOneToManyBidirectional || indexed) {
        // In case of a fake many-to-one bidirectional relation, we have to generate a mapper which maps
        // the mapped-by property name to the id of the related entity (which is the owner of the collection).
        final String auditMappedBy;
        if (fakeOneToManyBidirectional) {
            auditMappedBy = propertyAuditingData.getAuditMappedBy();
        } else {
            auditMappedBy = propertyValue.getMappedByProperty();
        }
        // Creating a prefixed relation mapper.
        final IdMapper relMapper = referencingIdMapping.getIdMapper().prefixMappedProperties(MappingTools.createToOneRelationPrefix(auditMappedBy));
        fakeBidirectionalRelationMapper = new ToOneIdMapper(relMapper, // when constructing the PropertyData.
        new PropertyData(auditMappedBy, null, null, null), referencingEntityName, false);
        final String positionMappedBy;
        if (fakeOneToManyBidirectional) {
            positionMappedBy = propertyAuditingData.getPositionMappedBy();
        } else if (indexed) {
            final Value indexValue = ((IndexedCollection) propertyValue).getIndex();
            positionMappedBy = indexValue.getColumnIterator().next().getText();
        } else {
            positionMappedBy = null;
        }
        // Checking if there's an index defined. If so, adding a mapper for it.
        if (positionMappedBy != null) {
            final Type indexType = ((IndexedCollection) propertyValue).getIndex().getType();
            fakeBidirectionalRelationIndexMapper = new SinglePropertyMapper(PropertyData.forProperty(positionMappedBy, indexType));
            // Also, overwriting the index component data to properly read the index.
            indexComponentData = new MiddleComponentData(new MiddleStraightComponentMapper(positionMappedBy), 0);
        } else {
            fakeBidirectionalRelationIndexMapper = null;
        }
    } else {
        fakeBidirectionalRelationMapper = null;
        fakeBidirectionalRelationIndexMapper = null;
    }
    // Checking the type of the collection and adding an appropriate mapper.
    addMapper(commonCollectionMapperData, elementComponentData, indexComponentData);
    // Storing information about this relation.
    referencingEntityConfiguration.addToManyNotOwningRelation(propertyName, mappedBy, referencedEntityName, referencingIdData.getPrefixedMapper(), fakeBidirectionalRelationMapper, fakeBidirectionalRelationIndexMapper, indexed);
}
Also used : PropertyData(org.hibernate.envers.internal.entities.PropertyData) CommonCollectionMapperData(org.hibernate.envers.internal.entities.mapper.relation.CommonCollectionMapperData) MiddleRelatedComponentMapper(org.hibernate.envers.internal.entities.mapper.relation.component.MiddleRelatedComponentMapper) IdMapper(org.hibernate.envers.internal.entities.mapper.id.IdMapper) ToOneIdMapper(org.hibernate.envers.internal.entities.mapper.relation.ToOneIdMapper) SinglePropertyMapper(org.hibernate.envers.internal.entities.mapper.SinglePropertyMapper) MultiPropertyMapper(org.hibernate.envers.internal.entities.mapper.MultiPropertyMapper) SinglePropertyMapper(org.hibernate.envers.internal.entities.mapper.SinglePropertyMapper) PropertyMapper(org.hibernate.envers.internal.entities.mapper.PropertyMapper) ListType(org.hibernate.type.ListType) ManyToOneType(org.hibernate.type.ManyToOneType) MaterializedNClobType(org.hibernate.type.MaterializedNClobType) SetType(org.hibernate.type.SetType) MaterializedClobType(org.hibernate.type.MaterializedClobType) MapType(org.hibernate.type.MapType) ComponentType(org.hibernate.type.ComponentType) SortedSetType(org.hibernate.type.SortedSetType) SortedMapType(org.hibernate.type.SortedMapType) BagType(org.hibernate.type.BagType) Type(org.hibernate.type.Type) MiddleIdData(org.hibernate.envers.internal.entities.mapper.relation.MiddleIdData) RelationQueryGenerator(org.hibernate.envers.internal.entities.mapper.relation.query.RelationQueryGenerator) Value(org.hibernate.mapping.Value) MiddleComponentData(org.hibernate.envers.internal.entities.mapper.relation.MiddleComponentData) ToOneIdMapper(org.hibernate.envers.internal.entities.mapper.relation.ToOneIdMapper) OneAuditEntityQueryGenerator(org.hibernate.envers.internal.entities.mapper.relation.query.OneAuditEntityQueryGenerator) IndexedCollection(org.hibernate.mapping.IndexedCollection) MiddleStraightComponentMapper(org.hibernate.envers.internal.entities.mapper.relation.component.MiddleStraightComponentMapper) IdMappingData(org.hibernate.envers.internal.entities.IdMappingData)

Aggregations

IdMappingData (org.hibernate.envers.internal.entities.IdMappingData)1 PropertyData (org.hibernate.envers.internal.entities.PropertyData)1 MultiPropertyMapper (org.hibernate.envers.internal.entities.mapper.MultiPropertyMapper)1 PropertyMapper (org.hibernate.envers.internal.entities.mapper.PropertyMapper)1 SinglePropertyMapper (org.hibernate.envers.internal.entities.mapper.SinglePropertyMapper)1 IdMapper (org.hibernate.envers.internal.entities.mapper.id.IdMapper)1 CommonCollectionMapperData (org.hibernate.envers.internal.entities.mapper.relation.CommonCollectionMapperData)1 MiddleComponentData (org.hibernate.envers.internal.entities.mapper.relation.MiddleComponentData)1 MiddleIdData (org.hibernate.envers.internal.entities.mapper.relation.MiddleIdData)1 ToOneIdMapper (org.hibernate.envers.internal.entities.mapper.relation.ToOneIdMapper)1 MiddleRelatedComponentMapper (org.hibernate.envers.internal.entities.mapper.relation.component.MiddleRelatedComponentMapper)1 MiddleStraightComponentMapper (org.hibernate.envers.internal.entities.mapper.relation.component.MiddleStraightComponentMapper)1 OneAuditEntityQueryGenerator (org.hibernate.envers.internal.entities.mapper.relation.query.OneAuditEntityQueryGenerator)1 RelationQueryGenerator (org.hibernate.envers.internal.entities.mapper.relation.query.RelationQueryGenerator)1 IndexedCollection (org.hibernate.mapping.IndexedCollection)1 Value (org.hibernate.mapping.Value)1 BagType (org.hibernate.type.BagType)1 ComponentType (org.hibernate.type.ComponentType)1 ListType (org.hibernate.type.ListType)1 ManyToOneType (org.hibernate.type.ManyToOneType)1