private void DeleteMembers(StatefulBuffer objectBytes)
{
ObjectHeader oh = new ObjectHeader(_clazz, objectBytes);
DeleteInfo info = (DeleteInfo)TreeInt.Find(_transaction._delete, _id);
if (info != null)
{
if (info._cascade > _cascade)
{
_cascade = info._cascade;
}
}
objectBytes.SetCascadeDeletes(_cascade);
DeleteContextImpl context = new DeleteContextImpl(objectBytes, oh, _clazz.ClassReflector
(), null);
_clazz.DeleteMembers(context, _typeInfo, true);
}
internal override void DeleteMembers(DeleteContextImpl context, ArrayType arrayType
, bool isUpdate)
{
if (arrayType == ArrayType.PlainArray)
{
new ArrayHandler(TypeHandler(), true).DeletePrimitiveEmbedded((StatefulBuffer) context
.Buffer(), this);
}
else
{
if (arrayType == ArrayType.MultidimensionalArray)
{
new MultidimensionalArrayHandler(TypeHandler(), true).DeletePrimitiveEmbedded((StatefulBuffer
) context.Buffer(), this);
}
}
}
private int CollectionDeleteDepth(DeleteContextImpl context)
{
return 1;
}
internal virtual void DeleteMembers(DeleteContextImpl context, ArrayType arrayType
, bool isUpdate)
{
var buffer = (StatefulBuffer) context.Buffer();
var preserveCascade = context.CascadeDeleteDepth();
try
{
if (CascadeOnDelete())
{
if (ClassReflector().IsCollection())
{
buffer.SetCascadeDeletes(CollectionDeleteDepth(context));
}
else
{
buffer.SetCascadeDeletes(1);
}
}
Handlers4.FieldAwareTypeHandler(CorrectHandlerVersion(context)).DeleteMembers(context
, isUpdate);
}
catch (Exception e)
{
// This a catch for changed class hierarchies.
// It's very ugly to catch all here but it does
// help to heal migration from earlier db4o
// versions.
var dp = Container()._handlers.DiagnosticProcessor();
if (dp.Enabled())
{
dp.DeletionFailed();
}
}
buffer.SetCascadeDeletes(preserveCascade);
}
private void CascadeDeletion(StatefulBuffer buffer, object obj)
{
var oh = new ObjectHeader(this, buffer);
var context = new DeleteContextImpl(buffer, oh, ClassReflector(), null
);
DeleteMembers(context, ArrayTypeFor(buffer, obj), false);
}
public override void Delete(DeleteContextImpl context, bool isUpdate)
{
context.Seek(context.Offset() + LinkLength(context));
}
public DeleteContextImpl(DeleteContextImpl parentContext
, IReflectClass fieldClass, Config4Field fieldConfig) : this(parentContext.StatefulBuffer
(), parentContext._objectHeader, fieldClass, fieldConfig)
{
}
public _MarshallingInfoTraverseAspectCommand_438(DeleteContextImpl context, bool
isUpdate, IMarshallingInfo baseArg1) : base(baseArg1)
{
this.context = context;
this.isUpdate = isUpdate;
}
/// <exception cref="Db4objects.Db4o.CorruptionException"></exception>
/// <exception cref="Db4objects.Db4o.Ext.Db4oIOException"></exception>
private void RemoveIndexEntry(DeleteContextImpl context)
{
if (!HasIndex())
{
return;
}
int offset = context.Offset();
object obj = ReadIndexEntry(context);
RemoveIndexEntry(context.Transaction(), context.ObjectId(), obj);
context.Seek(offset);
}
public _IClosure4_445(FieldMetadata _enclosing, DeleteContextImpl childContext)
{
this._enclosing = _enclosing;
this.childContext = childContext;
}
/// <exception cref="Db4objects.Db4o.Internal.FieldIndexException"></exception>
public override void Delete(DeleteContextImpl context, bool isUpdate)
{
if (!CheckAlive(context))
{
return;
}
try
{
RemoveIndexEntry(context);
if (isUpdate)
{
IncrementOffset(context);
return;
}
StatefulBuffer buffer = (StatefulBuffer)context.Buffer();
DeleteContextImpl childContext = new DeleteContextImpl(context, GetStoredType(),
_config);
context.SlotFormat().DoWithSlotIndirection(buffer, GetHandler(), new _IClosure4_445
(this, childContext));
}
catch (CorruptionException exc)
{
throw new FieldIndexException(exc, this);
}
}
public _IClosure4_119(TypeHandlerAspect _enclosing, DeleteContextImpl context)
{
this._enclosing = _enclosing;
this.context = context;
}
public override void Delete(DeleteContextImpl context, bool isUpdate)
{
context.SlotFormat().DoWithSlotIndirection(context, new _IClosure4_119(this, context
));
}
public override void Delete(DeleteContextImpl context, bool isUpdate)
{
}
// do nothing public abstract override void Delete(DeleteContextImpl context, bool isUpdate);
public virtual void DeleteMembers(DeleteContextImpl context, bool isUpdate)
{
ITraverseAspectCommand command = new _MarshallingInfoTraverseAspectCommand_438(context
, isUpdate, EnsureFieldList(context));
TraverseAllAspects(context, command);
}
public virtual void DeleteMembers(DeleteContextImpl deleteContext, bool isUpdate)
{
}
public DeleteContextImpl(Db4objects.Db4o.Internal.Delete.DeleteContextImpl parentContext
, IReflectClass fieldClass, Config4Field fieldConfig) : this(parentContext.StatefulBuffer
(), parentContext._objectHeader, fieldClass, fieldConfig)
{
}
public override void Delete(DeleteContextImpl context, bool isUpdate)
{
if (isUpdate)
{
context.Seek(context.Offset() + LinkLength(context));
return;
}
context.Seek(context.Offset() + Const4.IntLength);
var longPart = context.ReadLong();
if (longPart > 0)
{
if (context.Container().MaintainsIndices())
{
RemoveIndexEntry(context.Transaction(), context.ObjectId(), longPart);
}
}
}
