private object ProcessArrayOrNewCollection(object collection, PersistentCollectionType collectionType)
{
if (collection == null)
{
return(null);
}
ICollectionPersister persister = Session.GetCollectionPersister(collectionType.Role);
if (collectionType.IsArrayType)
{
ArrayHolder ah = Session.GetArrayHolder(collection);
if (ah == null)
{
ah = new ArrayHolder(Session, collection);
Session.AddNewCollection(ah, persister);
Session.AddArrayHolder(ah);
}
return(null);
}
else
{
PersistentCollection persistentCollection = collectionType.Wrap(Session, collection);
Session.AddNewCollection(persistentCollection, persister);
if (log.IsDebugEnabled)
{
log.Debug("Wrapped collection in role: " + collectionType.Role);
}
return(persistentCollection); //Force a substitution!
}
}
/// <summary>
/// Cascade to the collection elements
/// </summary>
/// <param name="action"></param>
/// <param name="style"></param>
/// <param name="collectionType"></param>
/// <param name="elemType"></param>
/// <param name="child"></param>
/// <param name="cascadeVia"></param>
/// <param name="session"></param>
/// <param name="anything"></param>
private static void CascadeCollection(
CascadingAction action,
CascadeStyle style,
PersistentCollectionType collectionType,
IType elemType,
object child,
CascadePoint cascadeVia,
ISessionImplementor session,
object anything)
{
// cascade to current collection elements
if (log.IsDebugEnabled)
{
log.Debug("cascading to collection: " + collectionType.Role);
}
ICollection iter = action.CascadableChildrenCollection(collectionType, child);
foreach (object obj in iter)
{
Cascade(session, obj, elemType, action, style, cascadeVia, anything);
}
// handle oprhaned entities!!
if (style.HasOrphanDelete && action.DeleteOrphans() && child is PersistentCollection)
{
// We can do the cast since orphan-delete does not apply to:
// 1. newly instatiated collections
// 2. arrays ( we can't track orphans for detached arrays)
DeleteOrphans(child as PersistentCollection, session);
}
}
protected override object ProcessCollection(object collection, PersistentCollectionType type)
{
if (collection != null)
{
SessionImpl session = Session;
PersistentCollection coll;
if (type.IsArrayType)
{
coll = session.GetArrayHolder(collection);
// if no array holder we found an unwrappered array (this can't occur,
// because we now always call wrap() before getting to here)
// return (ah==null) ? true : searchForDirtyCollections(ah, type);
}
else
{
// if not wrappered yet, its dirty (this can't occur, because
// we now always call wrap() before getting to here)
// return ( ! (obj is PersistentCollection) ) ?
// true : SearchForDirtyCollections( (PersistentCollection) obj, type );
coll = (PersistentCollection)collection;
}
if (session.CollectionIsDirty(coll))
{
_dirty = true;
return(null); // NOTE: early exit
}
}
return(null);
}
protected override object ProcessCollection(object collection, PersistentCollectionType type)
{
SessionImpl session = Session;
object key = Key;
ICollectionPersister persister = session.GetCollectionPersister(type.Role);
session.RemoveCollection(persister, key);
if (collection != null && (collection is PersistentCollection))
{
PersistentCollection wrapper = collection as PersistentCollection;
wrapper.SetCurrentSession(session);
if (wrapper.WasInitialized)
{
session.AddNewCollection(wrapper, persister);
}
else
{
session.ReattachCollection(wrapper, wrapper.CollectionSnapshot);
}
}
else
{
// otherwise a null or brand new collection
// this will also (inefficiently) handle arrays, which
// have no snapshot, so we can't do any better
//processArrayOrNewCollection(collection, type);
}
return(null);
}
/// <summary>
/// Cascade an action to the child or children
/// </summary>
/// <param name="session"></param>
/// <param name="child"></param>
/// <param name="type"></param>
/// <param name="action"></param>
/// <param name="style"></param>
/// <param name="cascadeTo"></param>
/// <param name="anything"></param>
private static void Cascade(
ISessionImplementor session,
object child,
IType type,
CascadingAction action,
CascadeStyle style,
CascadePoint cascadeTo,
object anything)
{
if (child != null)
{
if (type.IsAssociationType)
{
if ((( IAssociationType )type).ForeignKeyType.CascadeNow(cascadeTo))
{
if (type.IsEntityType || type.IsObjectType)
{
action.Cascade(session, child, anything);
}
else if (type.IsPersistentCollectionType)
{
CascadePoint cascadeVia;
if (cascadeTo == CascadePoint.CascadeAfterInsertBeforeDelete)
{
cascadeVia = CascadePoint.CascadeAfterInsertBeforeDeleteViaCollection;
}
else
{
cascadeVia = cascadeTo;
}
PersistentCollectionType pctype = ( PersistentCollectionType )type;
ICollectionPersister persister = session.Factory.GetCollectionPersister(pctype.Role);
IType elemType = persister.ElementType;
// cascade to current collection elements
if (elemType.IsEntityType || elemType.IsObjectType || elemType.IsComponentType)
{
CascadeCollection(action, style, pctype, elemType, child, cascadeVia, session, anything);
}
}
}
}
else if (type.IsComponentType)
{
IAbstractComponentType ctype = (( IAbstractComponentType )type);
object[] children = ctype.GetPropertyValues(child, session);
IType[] types = ctype.Subtypes;
for (int i = 0; i < types.Length; i++)
{
CascadeStyle componentPropertyStyle = ctype.Cascade(i);
if (componentPropertyStyle.DoCascade(action))
{
Cascade(session, children[i], types[i], action, componentPropertyStyle, cascadeTo, anything);
}
}
}
}
}
protected override object ProcessCollection(object collection, PersistentCollectionType type)
{
if (collection != null)
{
Session.EvictCollection(collection, type);
}
return(null);
}
internal static ICollection GetLoadedElementsCollection(PersistentCollectionType collectionType, object collection)
{
if (CollectionIsInitialized(collection))
{
// handles arrays and newly instantiated collections
return(collectionType.GetElementsCollection(collection));
}
else
{
// does not handle arrays (that's ok, cos they can't be lazy)
// or newly instantiated collections so we can do the cast
return(((PersistentCollection)collection).QueuedAddsCollection);
}
}
protected override object ProcessCollection(object collection, PersistentCollectionType collectionType)
{
if (collection != null && (collection is PersistentCollection))
{
PersistentCollection coll = collection as PersistentCollection;
if (coll.SetCurrentSession(Session))
{
Session.ReattachCollection(coll, coll.CollectionSnapshot);
}
return(null);
}
else
{
return(ProcessArrayOrNewCollection(collection, collectionType));
}
}
protected override object ProcessCollection(object collection, PersistentCollectionType type)
{
ICollectionPersister persister = Session.GetCollectionPersister(type.Role);
if (collection == null)
{
// Do nothing
}
else if (collection is PersistentCollection)
{
PersistentCollection coll = (PersistentCollection)collection;
if (coll.SetCurrentSession(Session))
{
ICollectionSnapshot snapshot = coll.CollectionSnapshot;
if (SessionImpl.IsOwnerUnchanged(snapshot, persister, this.Key))
{
// a "detached" collection that originally belonged to the same entity
if (snapshot.Dirty)
{
throw new HibernateException("reassociated object has dirty collection");
}
Session.ReattachCollection(coll, snapshot);
}
else
{
// a "detached" collection that belonged to a different entity
throw new HibernateException("reassociated object has dirty collection reference");
}
}
else
{
// a collection loaded in the current session
// can not possibly be the collection belonging
// to the entity passed to update()
throw new HibernateException("reassociated object has dirty collection reference");
}
}
else
{
// brand new collection
//TODO: or an array!! we can't lock objects with arrays now??
throw new HibernateException("reassociated object has dirty collection reference");
}
return(null);
}
protected override object ProcessCollection(object collection, PersistentCollectionType type)
{
ICollectionPersister persister = Session.GetCollectionPersister(type.Role);
if (collection is PersistentCollection)
{
PersistentCollection wrapper = (PersistentCollection)collection;
if (wrapper.SetCurrentSession(Session))
{
//a "detached" collection!
ICollectionSnapshot snapshot = wrapper.CollectionSnapshot;
if (!SessionImpl.IsOwnerUnchanged(snapshot, persister, Key))
{
// if the collection belonged to a different entity,
// clean up the existing state of the collection
Session.RemoveCollection(persister, Key);
}
Session.ReattachCollection(wrapper, snapshot);
}
else
{
// a collection loaded in the current session
// can not possibly be the collection belonging
// to the entity passed to update()
Session.RemoveCollection(persister, Key);
}
}
else
{
// null or brand new collection
// this will also (inefficiently) handle arrays, which have
// no snapshot, so we can't do any better
Session.RemoveCollection(persister, Key);
//processArrayOrNewCollection(collection, type);
}
return(null);
}
protected override object ProcessCollection(object collection, PersistentCollectionType type)
{
if (log.IsDebugEnabled)
{
log.Debug(string.Format("Processing collection for role {0}", type.Role));
}
if (collection != null)
{
PersistentCollection coll;
if (type.IsArrayType)
{
coll = Session.GetArrayHolder(collection);
}
else
{
coll = (PersistentCollection)collection;
}
Session.UpdateReachableCollection(coll, type, _owner);
}
return(null);
}
internal static ICollection GetAllElementsCollection(PersistentCollectionType collectionType, object collection)
{
return(collectionType.GetElementsCollection(collection));
}
public AbstractCollectionPersister(Mapping.Collection collection, ISessionFactoryImplementor factory)
{
this.factory = factory;
dialect = factory.Dialect;
//sqlExceptionConverter = factory.SQLExceptionConverter;
collectionType = collection.CollectionType;
role = collection.Role;
ownerClass = collection.OwnerClass;
Alias alias = new Alias("__");
sqlOrderByString = collection.OrderBy;
hasOrder = sqlOrderByString != null;
sqlOrderByStringTemplate = hasOrder ? Template.RenderOrderByStringTemplate(sqlOrderByString, dialect) : null;
sqlWhereString = collection.Where;
hasWhere = sqlWhereString != null;
sqlWhereStringTemplate = hasWhere ? Template.RenderWhereStringTemplate(sqlWhereString, dialect) : null;
hasOrphanDelete = collection.OrphanDelete;
batchSize = collection.BatchSize;
cache = collection.Cache;
keyType = collection.Key.Type;
int keySpan = collection.Key.ColumnSpan;
keyColumnNames = new string[keySpan];
string[] keyAliases = new string[keySpan];
int k = 0;
foreach (Column col in collection.Key.ColumnCollection)
{
keyColumnNames[k] = col.GetQuotedName(dialect);
keyAliases[k] = col.Alias(dialect);
k++;
}
keyColumnAliases = alias.ToAliasStrings(keyAliases, dialect);
//unquotedKeyColumnNames = StringHelper.Unquote( keyColumnAliases );
ISet distinctColumns = new HashedSet();
CheckColumnDuplication(distinctColumns, collection.Key.ColumnCollection);
//isSet = collection.IsSet;
//isSorted = collection.IsSorted;
primitiveArray = collection.IsPrimitiveArray;
array = collection.IsArray;
IValue element = collection.Element;
int elementSpan = element.ColumnSpan;
ICollection iter = element.ColumnCollection;
Table table = collection.CollectionTable;
enableJoinedFetch = element.OuterJoinFetchSetting;
elementType = element.Type;
if (!collection.IsOneToMany)
{
CheckColumnDuplication(distinctColumns, element.ColumnCollection);
}
if (elementType.IsEntityType)
{
elementPersister = factory.GetPersister((( EntityType )elementType).AssociatedClass);
}
else
{
elementPersister = null;
}
qualifiedTableName = table.GetQualifiedName(dialect, factory.DefaultSchema);
string[] aliases = new string[elementSpan];
elementColumnNames = new string[elementSpan];
int j = 0;
foreach (Column col in iter)
{
elementColumnNames[j] = col.GetQuotedName(dialect);
aliases[j] = col.Alias(dialect);
j++;
}
elementColumnAliases = alias.ToAliasStrings(aliases, dialect);
IType selectColumns;
string[] selectType;
hasIndex = collection.IsIndexed;
if (hasIndex)
{
IndexedCollection indexedCollection = ( IndexedCollection )collection;
indexType = indexedCollection.Index.Type;
int indexSpan = indexedCollection.Index.ColumnSpan;
indexColumnNames = new string[indexSpan];
string[] indexAliases = new string[indexSpan];
int i = 0;
foreach (Column indexCol in indexedCollection.Index.ColumnCollection)
{
indexAliases[i] = indexCol.Alias(dialect);
indexColumnNames[i] = indexCol.GetQuotedName(dialect);
i++;
}
selectType = indexColumnNames;
selectColumns = indexType;
indexColumnAliases = alias.ToAliasStrings(indexAliases, dialect);
CheckColumnDuplication(distinctColumns, indexedCollection.Index.ColumnCollection);
}
else
{
indexType = null;
indexColumnNames = null;
indexColumnAliases = null;
selectType = elementColumnNames;
selectColumns = elementType;
}
hasIdentifier = collection.IsIdentified;
if (hasIdentifier)
{
if (collection.IsOneToMany)
{
throw new MappingException("one-to-many collections with identifiers are not supported.");
}
IdentifierCollection idColl = ( IdentifierCollection )collection;
identifierType = idColl.Identifier.Type;
Column col = null;
foreach (Column column in idColl.Identifier.ColumnCollection)
{
col = column;
break;
}
identifierColumnName = col.GetQuotedName(dialect);
selectType = new string[] { identifierColumnName };
selectColumns = identifierType;
identifierColumnAlias = alias.ToAliasString(col.Alias(dialect), dialect);
unquotedIdentifierColumnName = identifierColumnAlias;
identifierGenerator = idColl.Identifier.CreateIdentifierGenerator(dialect);
CheckColumnDuplication(distinctColumns, idColl.Identifier.ColumnCollection);
}
else
{
identifierType = null;
identifierColumnName = null;
identifierColumnAlias = null;
unquotedIdentifierColumnName = null;
identifierGenerator = null;
}
rowSelectColumnNames = selectType;
rowSelectType = selectColumns;
sqlDeleteString = GenerateDeleteString();
sqlInsertRowString = GenerateInsertRowString();
sqlUpdateRowString = GenerateUpdateRowString();
sqlDeleteRowString = GenerateDeleteRowString();
isLazy = collection.IsLazy;
isInverse = collection.IsInverse;
if (collection.IsArray)
{
elementClass = (( Array )collection).ElementClass;
}
else
{
// for non-arrays, we don't need to know the element class
elementClass = null;
}
initializer = CreateCollectionInitializer(factory);
if (elementType.IsComponentType)
{
elementPropertyMapping = new CompositeElementPropertyMapping(elementColumnNames, ( IAbstractComponentType )elementType, factory);
}
else if (!elementType.IsEntityType)
{
elementPropertyMapping = new ElementPropertyMapping(elementColumnNames, elementType);
}
else
{
IClassPersister persister = factory.GetPersister((( EntityType )elementType).AssociatedClass);
// Not all classpersisters implement IPropertyMapping!
if (persister is IPropertyMapping)
{
elementPropertyMapping = ( IPropertyMapping )persister;
}
else
{
elementPropertyMapping = new ElementPropertyMapping(elementColumnNames, elementType);
}
}
}
/// <summary>
/// Visit a collection. Default superclass implementation is a no-op.
/// </summary>
/// <param name="collection"></param>
/// <param name="type"></param>
/// <returns></returns>
protected virtual object ProcessCollection(object collection, PersistentCollectionType type)
{
return(null);
}
public override ICollection CascadableChildrenCollection(PersistentCollectionType collectionType, object collection)
{
// saves / updates don't cascade to uninitialized collections
return(Cascades.GetLoadedElementsCollection(collectionType, collection));
}
public override ICollection CascadableChildrenCollection(PersistentCollectionType collectionType, object collection)
{
return(Cascades.GetLoadedElementsCollection(collectionType, collection));
}
/// <summary> /// The children to whom we should cascade. /// </summary> public abstract ICollection CascadableChildrenCollection(PersistentCollectionType collectionType, object collection);