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;
}
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;
}
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!
}
}
protected override object ProcessCollection(object collection, PersistentCollectionType type)
{
if( collection != null )
{
Session.EvictCollection( collection, type );
}
return null;
}
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 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;
}
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> /// The children to whom we should cascade. /// </summary> public abstract ICollection CascadableChildrenCollection( PersistentCollectionType collectionType, object collection );
internal static ICollection GetAllElementsCollection( PersistentCollectionType collectionType, object collection )
{
return collectionType.GetElementsCollection( collection );
}
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;
}
}
/// <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 );
}
}
public override ICollection CascadableChildrenCollection( PersistentCollectionType collectionType, object collection )
{
return Cascades.GetLoadedElementsCollection( collectionType, collection );
}
public override ICollection CascadableChildrenCollection( PersistentCollectionType collectionType, object collection )
{
// saves / updates don't cascade to uninitialized collections
return Cascades.GetLoadedElementsCollection( collectionType, collection );
}
/// <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;
}
internal void EvictCollection( object value, PersistentCollectionType type )
{
object pc;
if( type.IsArrayType )
{
pc = arrayHolders[ value ];
arrayHolders.Remove( value );
}
else if( value is PersistentCollection )
{
pc = value;
}
else
{
return; //EARLY EXIT!
}
PersistentCollection collection = pc as PersistentCollection;
if( collection.UnsetSession( this ) )
{
EvictCollection( collection );
}
}
