private void GenerateBidirectionRelationInfo()
{
// Checking each relation if it is bidirectional. If so, storing that information.
foreach (String entityName in entitiesConfigurations.Keys)
{
EntityConfiguration entCfg = entitiesConfigurations[entityName];
// Iterating over all relations from that entity
foreach (RelationDescription relDesc in entCfg.GetRelationsIterator())
{
// If this is an "owned" relation, checking the related entity, if it has a relation that has
// a mapped-by attribute to the currently checked. If so, this is a bidirectional relation.
if (relDesc.RelationType == RelationType.TO_ONE ||
relDesc.RelationType == RelationType.TO_MANY_MIDDLE)
{
if (entitiesConfigurations.Keys.Contains(relDesc.ToEntityName))
{
EntityConfiguration entityConfiguration = entitiesConfigurations[relDesc.ToEntityName];
foreach (RelationDescription other in entityConfiguration.GetRelationsIterator())
{
if (relDesc.FromPropertyName.Equals(other.MappedByPropertyName) &&
(entityName.Equals(other.ToEntityName)))
{
relDesc.Bidirectional = true;
other.Bidirectional = true;
}
}
}
}
}
}
}
public RelationDescription GetRelationDescription(String entityName, String propertyName)
{
EntityConfiguration entCfg = entitiesConfigurations[entityName];
RelationDescription relDesc = entCfg.GetRelationDescription(propertyName);
if (relDesc != null)
{
return(relDesc);
}
else if (entCfg.ParentEntityName != null)
{
// The field may be declared in a superclass ...
return(GetRelationDescription(entCfg.ParentEntityName, propertyName));
}
else
{
return(null);
}
}
/**
* @param mainGenerator Main generator, giving access to configuration and the basic mapper.
* @param propertyValue Value of the collection, as mapped by Hibernate.
* @param currentMapper Mapper, to which the appropriate {@link org.hibernate.envers.entities.mapper.PropertyMapper}
* will be added.
* @param referencingEntityName Name of the entity that owns this collection.
* @param xmlMappingData In case this collection requires a middle table, additional mapping documents will
* be created using this object.
* @param propertyAuditingData Property auditing (meta-)data. Among other things, holds the name of the
* property that references the collection in the referencing entity, the user data for middle (join)
* table and the value of the <code>@MapKey</code> annotation, if there was one.
*/
public CollectionMetadataGenerator(AuditMetadataGenerator mainGenerator,
Mapping.Collection propertyValue, ICompositeMapperBuilder currentMapper,
String referencingEntityName, EntityXmlMappingData xmlMappingData,
PropertyAuditingData propertyAuditingData) {
this.mainGenerator = mainGenerator;
this.propertyValue = propertyValue;
this.currentMapper = currentMapper;
this.referencingEntityName = referencingEntityName;
this.xmlMappingData = xmlMappingData;
this.propertyAuditingData = propertyAuditingData;
this.propertyName = propertyAuditingData.Name;
referencingEntityConfiguration = mainGenerator.EntitiesConfigurations[referencingEntityName];
if (referencingEntityConfiguration == null) {
throw new MappingException("Unable to read auditing configuration for " + referencingEntityName + "!");
}
referencedEntityName = MappingTools.getReferencedEntityName(propertyValue.Element);
}
//@SuppressWarnings({"unchecked"})
public void GenerateFirstPass(PersistentClass pc, ClassAuditingData auditingData,
EntityXmlMappingData xmlMappingData, bool isAudited)
{
String schema = GetSchema(auditingData.AuditTable.schema, pc.Table);
String catalog = GetCatalog(auditingData.AuditTable.catalog, pc.Table);
String entityName = pc.EntityName;
if (!isAudited)
{
IdMappingData _idMapper = idMetadataGenerator.AddId(pc);
if (_idMapper == null)
{
// Unsupported id mapping, e.g. key-many-to-one. If the entity is used in auditing, an exception
// will be thrown later on.
if (log.IsDebugEnabled)
{
log.Debug("Unable to create auditing id mapping for entity " + entityName +
", because of an unsupported Hibernate id mapping (e.g. key-many-to-one).");
}
return;
}
//ORIG:
//IExtendedPropertyMapper propertyMapper = null;
//String parentEntityName = null;
EntityConfiguration _entityCfg = new EntityConfiguration(entityName, _idMapper, null,
null);
NotAuditedEntitiesConfigurations.Add(entityName, _entityCfg);
return;
}
if (log.IsDebugEnabled)
{
log.Debug("Generating first-pass auditing mapping for entity " + entityName + ".");
}
String auditEntityName = VerEntCfg.GetAuditEntityName(entityName);
String auditTableName = VerEntCfg.GetAuditTableName(entityName, pc.Table.Name);
// Registering the audit entity name, now that it is known
AuditEntityNameRegister.register(auditEntityName);
AuditTableData auditTableData = new AuditTableData(auditEntityName, auditTableName, schema, catalog);
// Generating a mapping for the id
IdMappingData idMapper = idMetadataGenerator.AddId(pc);
InheritanceType.Type inheritanceType = InheritanceType.GetForChild(pc);
// These properties will be read from the mapping data
XmlElement class_mapping;
IExtendedPropertyMapper propertyMapper;
String parentEntityName;
Triple<XmlElement, IExtendedPropertyMapper, String> mappingData;
// Reading the mapping data depending on inheritance type (if any)
switch (inheritanceType)
{
case InheritanceType.Type.NONE:
mappingData = GenerateMappingData(pc, xmlMappingData, auditTableData, idMapper);
break;
case InheritanceType.Type.SINGLE:
mappingData = GenerateInheritanceMappingData(pc, xmlMappingData, auditTableData, "subclass");
break;
case InheritanceType.Type.JOINED:
mappingData = GenerateInheritanceMappingData(pc, xmlMappingData, auditTableData, "joined-subclass");
AddJoinedInheritancePersisterHack(mappingData.First);
// Adding the "key" element with all id columns...
XmlElement keyMapping = mappingData.First.OwnerDocument.CreateElement("key");
mappingData.First.AppendChild(keyMapping);
MetadataTools.AddColumns(keyMapping, (IEnumerator<ISelectable>)pc.Table.PrimaryKey.ColumnIterator.GetEnumerator());
// ... and the revision number column, read from the revision info relation mapping.
keyMapping.AppendChild((XmlElement)CloneAndSetupRevisionInfoRelationMapping(keyMapping.OwnerDocument).GetElementsByTagName("column")[0].Clone());
break;
case InheritanceType.Type.TABLE_PER_CLASS:
mappingData = GenerateInheritanceMappingData(pc, xmlMappingData, auditTableData, "union-subclass");
AddTablePerClassInheritancePersisterHack(mappingData.First);
break;
default:
throw new AssertionFailure("Envers.NET: AuditMetadataGenerator.GenerateFirstPass: Impossible enum value.");
}
class_mapping = mappingData.First;
propertyMapper = mappingData.Second;
parentEntityName = mappingData.Third;
xmlMappingData.ClassMapping = class_mapping;
// Mapping unjoined properties
AddProperties(class_mapping, (IEnumerator<Property>)pc.UnjoinedPropertyIterator.GetEnumerator(), propertyMapper,
auditingData, pc.EntityName, xmlMappingData,
true);
// Creating and mapping joins (first pass)
CreateJoins(pc, class_mapping, auditingData);
AddJoins(pc, propertyMapper, auditingData, pc.EntityName, xmlMappingData, true);
// Storing the generated configuration
EntityConfiguration entityCfg = new EntityConfiguration(auditEntityName, idMapper,
propertyMapper, parentEntityName);
EntitiesConfigurations.Add(pc.EntityName, entityCfg);
}
public void GenerateFirstPass(PersistentClass pc, ClassAuditingData auditingData,
EntityXmlMappingData xmlMappingData, bool isAudited)
{
var schema = GetSchema(auditingData.AuditTable.Schema, pc.Table);
var catalog = GetCatalog(auditingData.AuditTable.Catalog, pc.Table);
var entityName = pc.EntityName;
if (!isAudited)
{
var _idMapper = idMetadataGenerator.AddId(pc);
if (_idMapper == null)
{
// Unsupported id mapping, e.g. key-many-to-one. If the entity is used in auditing, an exception
// will be thrown later on.
if (log.IsDebugEnabled)
{
log.DebugFormat("Unable to create auditing id mapping for entity {0}" +
", because of an unsupported Hibernate id mapping (e.g. key-many-to-one).", entityName);
}
return;
}
//ORIG:
//IExtendedPropertyMapper propertyMapper = null;
//String parentEntityName = null;
var _entityCfg = new EntityConfiguration(entityName, pc.ClassName, _idMapper, null, null);
NotAuditedEntitiesConfigurations.Add(entityName, _entityCfg);
return;
}
if (log.IsDebugEnabled)
{
log.DebugFormat("Generating first-pass auditing mapping for entity {0}.", entityName);
}
var auditEntityName = VerEntCfg.GetAuditEntityName(entityName);
var auditTableName = VerEntCfg.GetAuditTableName(entityName, pc.Table.Name);
// Registering the audit entity name, now that it is known
AuditEntityNameRegister.Register(auditEntityName);
var auditTableData = new AuditTableData(auditEntityName, auditTableName, schema, catalog);
// Generating a mapping for the id
var idMapper = idMetadataGenerator.AddId(pc);
var inheritanceType = pc.GetInheritanceType();
// These properties will be read from the mapping data
Triple<XmlElement, IExtendedPropertyMapper, string> mappingData;
// Reading the mapping data depending on inheritance type (if any)
switch (inheritanceType)
{
case InheritanceType.None:
mappingData = GenerateMappingData(pc, xmlMappingData, auditTableData, idMapper);
break;
case InheritanceType.Single:
auditTableData = new AuditTableData(auditEntityName, null, schema, catalog);
mappingData = GenerateInheritanceMappingData(pc, xmlMappingData, auditTableData, "subclass");
break;
case InheritanceType.Joined:
mappingData = GenerateInheritanceMappingData(pc, xmlMappingData, auditTableData, "joined-subclass");
// Adding the "key" element with all id columns...
var keyMapping = mappingData.First.OwnerDocument.CreateElement("key");
mappingData.First.AppendChild(keyMapping);
MetadataTools.AddColumns(keyMapping, pc.Table.PrimaryKey.ColumnIterator);
// ... and the revision number column, read from the revision info relation mapping.
keyMapping.AppendChild(CloneAndSetupRevisionInfoRelationMapping(keyMapping.OwnerDocument).GetElementsByTagName("column")[0].Clone());
break;
case InheritanceType.TablePerClass:
mappingData = GenerateInheritanceMappingData(pc, xmlMappingData, auditTableData, "union-subclass");
break;
default:
throw new AssertionFailure("AuditMetadataGenerator.GenerateFirstPass: Impossible enum value.");
}
var class_mapping = mappingData.First;
var propertyMapper = mappingData.Second;
var parentEntityName = mappingData.Third;
xmlMappingData.ClassMapping = class_mapping;
// Mapping unjoined properties
AddProperties(class_mapping, pc.UnjoinedPropertyIterator, propertyMapper,
auditingData, pc.EntityName, xmlMappingData,
true);
// Creating and mapping joins (first pass)
CreateJoins(pc, class_mapping, auditingData);
AddJoins(pc, propertyMapper, auditingData, pc.EntityName, xmlMappingData, true);
// Storing the generated configuration
var entityCfg = new EntityConfiguration(auditEntityName, pc.ClassName, idMapper,
propertyMapper, parentEntityName);
EntitiesConfigurations.Add(pc.EntityName, entityCfg);
}
