Examples with MapAttributeFlusher com.blazebit.persistence.view.impl.update.flush.MapAttributeFlusher used on opensource projects

Example 1 with MapAttributeFlusher

use of com.blazebit.persistence.view.impl.update.flush.MapAttributeFlusher in project blaze-persistence by Blazebit.

the class EntityViewUpdaterImpl method createPluralAttributeFlusher.

private DirtyAttributeFlusher<?, ?, ?> createPluralAttributeFlusher(EntityViewManagerImpl evm, Map<Object, EntityViewUpdaterImpl> localCache, ManagedViewTypeImplementor<?> viewType, String idAttributeName, FlushStrategy flushStrategy, AbstractMethodAttribute<?, ?> attribute, DirtyAttributeFlusher<?, ?, ?> ownerIdFlusher, EntityViewUpdaterImpl owner, String ownerMapping) {
    EntityMetamodel entityMetamodel = evm.getMetamodel().getEntityMetamodel();
    Class<?> entityClass = viewType.getEntityClass();
    ExtendedManagedType managedType = entityMetamodel.getManagedType(ExtendedManagedType.class, entityClass);
    String attributeName = attribute.getName();
    String attributeMapping = attribute.getMapping();
    AttributeAccessor entityAttributeAccessor = Accessors.forEntityMapping(evm, attribute);
    boolean cascadeDelete = attribute.isDeleteCascaded();
    boolean viewOnlyDeleteCascaded = cascadeDelete && !managedType.getAttribute(attributeMapping).isDeleteCascaded();
    boolean optimisticLockProtected = attribute.isOptimisticLockProtected();
    JpaProvider jpaProvider = evm.getJpaProvider();
    PluralAttribute<?, ?, ?> pluralAttribute = (PluralAttribute<?, ?, ?>) attribute;
    InitialValueAttributeAccessor viewAttributeAccessor = Accessors.forMutableViewAttribute(evm, attribute);
    ManagedType<?> ownerManagedType = owner == null ? viewType.getJpaManagedType() : owner.managedViewType.getJpaManagedType();
    EntityType<?> ownerEntityType = ownerManagedType instanceof EntityType<?> ? (EntityType<?>) ownerManagedType : null;
    DirtyAttributeFlusher<?, ?, ?> attributeOwnerFlusher;
    if (attributeMapping == null || ownerEntityType == null) {
        // In case of cascading only attributes i.e. correlations, we use the owner id flusher as it's not updatable anyway
        attributeOwnerFlusher = ownerIdFlusher;
    } else {
        Map<String, String> joinTableOwnerProperties;
        if (ownerMapping == null) {
            joinTableOwnerProperties = jpaProvider.getJoinMappingPropertyNames(ownerEntityType, ownerMapping, attributeMapping);
        } else {
            joinTableOwnerProperties = jpaProvider.getJoinMappingPropertyNames(ownerEntityType, ownerMapping, ownerMapping + "." + attributeMapping);
        }
        if (joinTableOwnerProperties.size() != 1) {
            String idMapping = ownerIdFlusher.getMapping();
            String prefix;
            if (idMapping.endsWith(".")) {
                prefix = idMapping;
            } else {
                prefix = idMapping + ".";
            }
            for (String joinTableOwnerProperty : joinTableOwnerProperties.keySet()) {
                if (!joinTableOwnerProperty.startsWith(prefix)) {
                    throw new IllegalArgumentException("Multiple joinable owner properties for attribute '" + attributeName + "' of " + ownerEntityType.getJavaType().getName() + " found which is not yet supported. Consider using the primary key instead!");
                }
            }
            attributeOwnerFlusher = ownerIdFlusher;
        } else if (ownerIdFlusher.getMapping().equals(joinTableOwnerProperties.values().iterator().next())) {
            attributeOwnerFlusher = ownerIdFlusher;
        } else {
            attributeOwnerFlusher = findSingularAttributeFlusherByMapping(evm, localCache, owner, viewType, attributeName, joinTableOwnerProperties.keySet().iterator().next());
        }
    }
    TypeDescriptor elementDescriptor = TypeDescriptor.forType(evm, localCache, this, attribute, pluralAttribute.getElementType(), owner, ownerMapping);
    boolean collectionUpdatable = attribute.isUpdatable();
    CollectionRemoveListener elementRemoveListener = createOrphanRemoveListener(attribute, elementDescriptor);
    CollectionRemoveListener elementCascadeDeleteListener = createCascadeDeleteListener(attribute, elementDescriptor);
    boolean jpaProviderDeletesCollection;
    boolean supportsCollectionDml = jpaProvider.supportsInsertStatement();
    if (elementDescriptor.getAttributeIdAttributeName() != null) {
        jpaProviderDeletesCollection = jpaProvider.supportsJoinTableCleanupOnDelete();
    } else {
        jpaProviderDeletesCollection = jpaProvider.supportsCollectionTableCleanupOnDelete();
    }
    if (attribute instanceof MapAttribute<?, ?, ?>) {
        MapAttribute<?, ?, ?> mapAttribute = (MapAttribute<?, ?, ?>) attribute;
        TypeDescriptor keyDescriptor = TypeDescriptor.forType(evm, localCache, this, attribute, mapAttribute.getKeyType(), owner, ownerMapping);
        // TODO: currently there is no possibility to set this
        CollectionRemoveListener keyRemoveListener = null;
        CollectionRemoveListener keyCascadeDeleteListener = null;
        if (collectionUpdatable || keyDescriptor.shouldFlushMutations() || elementDescriptor.shouldFlushMutations() || shouldPassThrough(evm, viewType, attribute)) {
            MapViewToEntityMapper mapper = new SimpleMapViewToEntityMapper(keyDescriptor.getViewToEntityMapper(), elementDescriptor.getViewToEntityMapper());
            MapViewToEntityMapper loadOnlyMapper = new SimpleMapViewToEntityMapper(keyDescriptor.getLoadOnlyViewToEntityMapper(), elementDescriptor.getLoadOnlyViewToEntityMapper());
            MapInstantiatorImplementor<?, ?> mapInstantiator = attribute.getMapInstantiator();
            return new MapAttributeFlusher<Object, RecordingMap<Map<?, ?>, ?, ?>>(attributeName, attributeMapping, owner == null ? entityClass : owner.fullEntityLoader.getEntityClass(), idAttributeName, ownerMapping, attributeOwnerFlusher, createPluralAttributeSubFlusher(evm, localCache, viewType, attribute, "element", mapAttribute.getElementType(), owner, ownerMapping), supportsCollectionDml, flushStrategy, entityAttributeAccessor, viewAttributeAccessor, optimisticLockProtected, collectionUpdatable, keyCascadeDeleteListener, elementCascadeDeleteListener, keyRemoveListener, elementRemoveListener, viewOnlyDeleteCascaded, jpaProviderDeletesCollection, keyDescriptor, elementDescriptor, mapper, loadOnlyMapper, mapInstantiator);
        } else {
            return null;
        }
    } else {
        if (collectionUpdatable || elementDescriptor.shouldFlushMutations() || shouldPassThrough(evm, viewType, attribute)) {
            InverseFlusher<Object> inverseFlusher = InverseFlusher.forAttribute(evm, localCache, viewType, attribute, elementDescriptor, owner, ownerMapping);
            InverseRemoveStrategy inverseRemoveStrategy = attribute.getInverseRemoveStrategy();
            CollectionInstantiatorImplementor<?, ?> collectionInstantiator = attribute.getCollectionInstantiator();
            if (pluralAttribute.isIndexed()) {
                return new IndexedListAttributeFlusher<Object, RecordingList<List<?>>>(attributeName, attributeMapping, owner == null ? entityClass : owner.fullEntityLoader.getEntityClass(), idAttributeName, ownerMapping, attributeOwnerFlusher, createPluralAttributeSubFlusher(evm, localCache, viewType, attribute, "element", pluralAttribute.getElementType(), owner, ownerMapping), supportsCollectionDml, flushStrategy, entityAttributeAccessor, viewAttributeAccessor, optimisticLockProtected, collectionUpdatable, viewOnlyDeleteCascaded, jpaProviderDeletesCollection, elementCascadeDeleteListener, elementRemoveListener, collectionInstantiator, elementDescriptor, inverseFlusher, inverseRemoveStrategy);
            } else {
                return new CollectionAttributeFlusher(attributeName, attributeMapping, owner == null ? entityClass : owner.fullEntityLoader.getEntityClass(), idAttributeName, ownerMapping, attributeOwnerFlusher, createPluralAttributeSubFlusher(evm, localCache, viewType, attribute, "element", pluralAttribute.getElementType(), owner, ownerMapping), supportsCollectionDml, flushStrategy, entityAttributeAccessor, viewAttributeAccessor, optimisticLockProtected, collectionUpdatable, viewOnlyDeleteCascaded, jpaProviderDeletesCollection, elementCascadeDeleteListener, elementRemoveListener, collectionInstantiator, elementDescriptor, inverseFlusher, inverseRemoveStrategy);
            }
        } else {
            return null;
        }
    }
}