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Example 1 with MiddleSimpleComponentMapper

use of org.hibernate.envers.internal.entities.mapper.relation.component.MiddleSimpleComponentMapper in project hibernate-orm by hibernate.

the class CollectionMetadataGenerator method addValueToMiddleTable.

/**
 * @param value Value, which should be mapped to the middle-table, either as a relation to another entity,
 * or as a simple value.
 * @param xmlMapping If not <code>null</code>, xml mapping for this value is added to this element.
 * @param queryGeneratorBuilder In case <code>value</code> is a relation to another entity, information about it
 * should be added to the given.
 * @param prefix Prefix for proeprty names of related entities identifiers.
 * @param joinColumns Names of columns to use in the xml mapping, if this array isn't null and has any elements.
 *
 * @return Data for mapping this component.
 */
@SuppressWarnings({ "unchecked" })
private MiddleComponentData addValueToMiddleTable(Value value, Element xmlMapping, QueryGeneratorBuilder queryGeneratorBuilder, String prefix, JoinColumn[] joinColumns, boolean key) {
    final Type type = value.getType();
    if (type instanceof ManyToOneType) {
        final String prefixRelated = prefix + "_";
        final String referencedEntityName = MappingTools.getReferencedEntityName(value);
        final IdMappingData referencedIdMapping = mainGenerator.getReferencedIdMappingData(referencingEntityName, referencedEntityName, propertyAuditingData, true);
        // relation isn't inverse (so when <code>xmlMapping</code> is not null).
        if (xmlMapping != null) {
            addRelatedToXmlMapping(xmlMapping, prefixRelated, joinColumns != null && joinColumns.length > 0 ? MetadataTools.getColumnNameIterator(joinColumns) : MetadataTools.getColumnNameIterator(value.getColumnIterator()), referencedIdMapping);
        }
        // Storing the id data of the referenced entity: original mapper, prefixed mapper and entity name.
        final MiddleIdData referencedIdData = createMiddleIdData(referencedIdMapping, prefixRelated, referencedEntityName);
        // And adding it to the generator builder.
        queryGeneratorBuilder.addRelation(referencedIdData);
        return new MiddleComponentData(new MiddleRelatedComponentMapper(referencedIdData), queryGeneratorBuilder.getCurrentIndex());
    } else if (type instanceof ComponentType) {
        // Collection of embeddable elements.
        final Component component = (Component) value;
        final Class componentClass = ReflectionTools.loadClass(component.getComponentClassName(), mainGenerator.getClassLoaderService());
        final MiddleEmbeddableComponentMapper componentMapper = new MiddleEmbeddableComponentMapper(new MultiPropertyMapper(), componentClass);
        final Element parentXmlMapping = xmlMapping.getParent();
        final ComponentAuditingData auditData = new ComponentAuditingData();
        final ReflectionManager reflectionManager = mainGenerator.getMetadata().getMetadataBuildingOptions().getReflectionManager();
        new ComponentAuditedPropertiesReader(ModificationStore.FULL, new AuditedPropertiesReader.ComponentPropertiesSource(reflectionManager, component), auditData, mainGenerator.getGlobalCfg(), reflectionManager, "").read();
        // Emulating first pass.
        for (String auditedPropertyName : auditData.getPropertyNames()) {
            final PropertyAuditingData nestedAuditingData = auditData.getPropertyAuditingData(auditedPropertyName);
            mainGenerator.addValue(parentXmlMapping, component.getProperty(auditedPropertyName).getValue(), componentMapper, prefix, xmlMappingData, nestedAuditingData, true, true, true);
        }
        // Emulating second pass so that the relations can be mapped too.
        for (String auditedPropertyName : auditData.getPropertyNames()) {
            final PropertyAuditingData nestedAuditingData = auditData.getPropertyAuditingData(auditedPropertyName);
            mainGenerator.addValue(parentXmlMapping, component.getProperty(auditedPropertyName).getValue(), componentMapper, referencingEntityName, xmlMappingData, nestedAuditingData, true, false, true);
        }
        // Embeddable properties may contain null values, so cannot be stored within composite primary key.
        if (propertyValue.isSet()) {
            final String setOrdinalPropertyName = mainGenerator.getVerEntCfg().getEmbeddableSetOrdinalPropertyName();
            final Element ordinalProperty = MetadataTools.addProperty(xmlMapping, setOrdinalPropertyName, "integer", true, true);
            MetadataTools.addColumn(ordinalProperty, setOrdinalPropertyName, null, null, null, null, null, null, false);
        }
        return new MiddleComponentData(componentMapper, 0);
    } else {
        // Last but one parameter: collection components are always insertable
        final boolean mapped = mainGenerator.getBasicMetadataGenerator().addBasic(key ? xmlMapping : xmlMapping.getParent(), new PropertyAuditingData(prefix, "field", ModificationStore.FULL, RelationTargetAuditMode.AUDITED, null, null, false), value, null, true, key);
        if (mapped && key) {
            // Simple values are always stored in the first item of the array returned by the query generator.
            return new MiddleComponentData(new MiddleSimpleComponentMapper(mainGenerator.getVerEntCfg(), prefix), 0);
        } else if (mapped && !key) {
            // when mapped but not part of the key, its stored as a dummy mapper??
            return new MiddleComponentData(new MiddleMapElementNotKeyComponentMapper(mainGenerator.getVerEntCfg(), prefix), 0);
        } else {
            mainGenerator.throwUnsupportedTypeException(type, referencingEntityName, propertyName);
            // Impossible to get here.
            throw new AssertionError();
        }
    }
}
Also used : AuditedPropertiesReader(org.hibernate.envers.configuration.internal.metadata.reader.AuditedPropertiesReader) ComponentAuditedPropertiesReader(org.hibernate.envers.configuration.internal.metadata.reader.ComponentAuditedPropertiesReader) ComponentType(org.hibernate.type.ComponentType) ManyToOneType(org.hibernate.type.ManyToOneType) ReflectionManager(org.hibernate.annotations.common.reflection.ReflectionManager) MiddleSimpleComponentMapper(org.hibernate.envers.internal.entities.mapper.relation.component.MiddleSimpleComponentMapper) MiddleRelatedComponentMapper(org.hibernate.envers.internal.entities.mapper.relation.component.MiddleRelatedComponentMapper) Element(org.dom4j.Element) MultiPropertyMapper(org.hibernate.envers.internal.entities.mapper.MultiPropertyMapper) PropertyAuditingData(org.hibernate.envers.configuration.internal.metadata.reader.PropertyAuditingData) MiddleMapElementNotKeyComponentMapper(org.hibernate.envers.internal.entities.mapper.relation.component.MiddleMapElementNotKeyComponentMapper) 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) ComponentAuditingData(org.hibernate.envers.configuration.internal.metadata.reader.ComponentAuditingData) MiddleIdData(org.hibernate.envers.internal.entities.mapper.relation.MiddleIdData) ComponentAuditedPropertiesReader(org.hibernate.envers.configuration.internal.metadata.reader.ComponentAuditedPropertiesReader) MiddleEmbeddableComponentMapper(org.hibernate.envers.internal.entities.mapper.relation.component.MiddleEmbeddableComponentMapper) PersistentClass(org.hibernate.mapping.PersistentClass) MiddleComponentData(org.hibernate.envers.internal.entities.mapper.relation.MiddleComponentData) Component(org.hibernate.mapping.Component) IdMappingData(org.hibernate.envers.internal.entities.IdMappingData)

Aggregations

Element (org.dom4j.Element)1 ReflectionManager (org.hibernate.annotations.common.reflection.ReflectionManager)1 AuditedPropertiesReader (org.hibernate.envers.configuration.internal.metadata.reader.AuditedPropertiesReader)1 ComponentAuditedPropertiesReader (org.hibernate.envers.configuration.internal.metadata.reader.ComponentAuditedPropertiesReader)1 ComponentAuditingData (org.hibernate.envers.configuration.internal.metadata.reader.ComponentAuditingData)1 PropertyAuditingData (org.hibernate.envers.configuration.internal.metadata.reader.PropertyAuditingData)1 IdMappingData (org.hibernate.envers.internal.entities.IdMappingData)1 MultiPropertyMapper (org.hibernate.envers.internal.entities.mapper.MultiPropertyMapper)1 MiddleComponentData (org.hibernate.envers.internal.entities.mapper.relation.MiddleComponentData)1 MiddleIdData (org.hibernate.envers.internal.entities.mapper.relation.MiddleIdData)1 MiddleEmbeddableComponentMapper (org.hibernate.envers.internal.entities.mapper.relation.component.MiddleEmbeddableComponentMapper)1 MiddleMapElementNotKeyComponentMapper (org.hibernate.envers.internal.entities.mapper.relation.component.MiddleMapElementNotKeyComponentMapper)1 MiddleRelatedComponentMapper (org.hibernate.envers.internal.entities.mapper.relation.component.MiddleRelatedComponentMapper)1 MiddleSimpleComponentMapper (org.hibernate.envers.internal.entities.mapper.relation.component.MiddleSimpleComponentMapper)1 Component (org.hibernate.mapping.Component)1 PersistentClass (org.hibernate.mapping.PersistentClass)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