private Element createMiddleEntityXml(
String auditMiddleTableName, String auditMiddleEntityName, String where) {
String schema =
mainGenerator.getSchema(
propertyAuditingData.getJoinTable().schema(), propertyValue.getCollectionTable());
String catalog =
mainGenerator.getCatalog(
propertyAuditingData.getJoinTable().catalog(), propertyValue.getCollectionTable());
Element middleEntityXml =
MetadataTools.createEntity(
xmlMappingData.newAdditionalMapping(),
new AuditTableData(auditMiddleEntityName, auditMiddleTableName, schema, catalog),
null);
Element middleEntityXmlId = middleEntityXml.addElement("composite-id");
// If there is a where clause on the relation, adding it to the middle entity.
if (where != null) {
middleEntityXml.addAttribute("where", where);
}
middleEntityXmlId.addAttribute("name", mainGenerator.getVerEntCfg().getOriginalIdPropName());
// Adding the revision number as a foreign key to the revision info entity to the composite id
// of the
// middle table.
mainGenerator.addRevisionInfoRelation(middleEntityXmlId);
// Adding the revision type property to the entity xml.
mainGenerator.addRevisionType(middleEntityXml);
// All other properties should also be part of the primary key of the middle entity.
return middleEntityXmlId;
}
@SuppressWarnings({"unchecked"})
IdMappingData addId(PersistentClass pc, boolean audited) {
// Xml mapping which will be used for relations
Element rel_id_mapping = new DefaultElement("properties");
// Xml mapping which will be used for the primary key of the versions table
Element orig_id_mapping = new DefaultElement("composite-id");
Property id_prop = pc.getIdentifierProperty();
Component id_mapper = pc.getIdentifierMapper();
// Checking if the id mapping is supported
if (id_mapper == null && id_prop == null) {
return null;
}
SimpleIdMapperBuilder mapper;
if (id_mapper != null) {
// Multiple id
mapper = new MultipleIdMapper(((Component) pc.getIdentifier()).getComponentClassName());
if (!addIdProperties(
rel_id_mapping,
(Iterator<Property>) id_mapper.getPropertyIterator(),
mapper,
false,
audited)) {
return null;
}
// null mapper - the mapping where already added the first time, now we only want to generate
// the xml
if (!addIdProperties(
orig_id_mapping,
(Iterator<Property>) id_mapper.getPropertyIterator(),
null,
true,
audited)) {
return null;
}
} else if (id_prop.isComposite()) {
// Embedded id
Component id_component = (Component) id_prop.getValue();
mapper =
new EmbeddedIdMapper(getIdPropertyData(id_prop), id_component.getComponentClassName());
if (!addIdProperties(
rel_id_mapping,
(Iterator<Property>) id_component.getPropertyIterator(),
mapper,
false,
audited)) {
return null;
}
// null mapper - the mapping where already added the first time, now we only want to generate
// the xml
if (!addIdProperties(
orig_id_mapping,
(Iterator<Property>) id_component.getPropertyIterator(),
null,
true,
audited)) {
return null;
}
} else {
// Single id
mapper = new SingleIdMapper();
// Last but one parameter: ids are always insertable
mainGenerator
.getBasicMetadataGenerator()
.addBasic(
rel_id_mapping,
getIdPersistentPropertyAuditingData(id_prop),
id_prop.getValue(),
mapper,
true,
false);
// null mapper - the mapping where already added the first time, now we only want to generate
// the xml
mainGenerator
.getBasicMetadataGenerator()
.addBasic(
orig_id_mapping,
getIdPersistentPropertyAuditingData(id_prop),
id_prop.getValue(),
null,
true,
true);
}
orig_id_mapping.addAttribute("name", mainGenerator.getVerEntCfg().getOriginalIdPropName());
// Adding a relation to the revision entity (effectively: the "revision number" property)
mainGenerator.addRevisionInfoRelation(orig_id_mapping);
return new IdMappingData(mapper, orig_id_mapping, rel_id_mapping);
}
