private object WriteAndRead(object obj)
{
var imaginativeID = 500;
var @ref = new ObjectReference(ClassMetadataForObject(obj), imaginativeID
);
@ref.SetObject(obj);
var marshallingContext = new MarshallingContext(Trans(), @ref, Container
().UpdateDepthProvider().ForDepth(int.MaxValue), true);
Handlers4.Write(@ref.ClassMetadata().TypeHandler(), marshallingContext, obj);
var pointer = marshallingContext.AllocateSlot();
var buffer = marshallingContext.ToWriteBuffer(pointer);
buffer.Seek(0);
// String str = new String(buffer._buffer);
// System.out.println(str);
var unmarshallingContext = new UnmarshallingContext(Trans(), @ref
, Const4.AddToIdTree, false);
unmarshallingContext.Buffer(buffer);
unmarshallingContext.ActivationDepth(new LegacyActivationDepth(5));
return unmarshallingContext.Read();
}
// do nothing
public override void Marshall(MarshallingContext context, object obj)
{
Marshall(context.Transaction(), context.Reference(), context, context.IsNew());
}
private void BlockAlign(MarshallingContext context, int precedingLength)
{
int totalLength = context.Container().BlockConverter().BlockAlignedBytes(precedingLength
+ Length());
int newLength = totalLength - precedingLength;
BlockAlign(newLength);
}
public virtual MarshallingBuffer CheckBlockAlignment(MarshallingContext context,
MarshallingBuffer precedingBuffer, IntByRef precedingLength)
{
_lastOffSet = Offset();
if (DoBlockAlign())
{
precedingBuffer.BlockAlign(context, precedingLength.value);
}
if (precedingBuffer != null)
{
precedingLength.value += precedingBuffer.Length();
}
precedingBuffer = this;
if (_children != null)
{
IEnumerator i = new Iterator4Impl(_children);
while (i.MoveNext())
{
precedingBuffer = ((MarshallingBuffer)i.Current).CheckBlockAlignment(context, precedingBuffer
, precedingLength);
}
}
return precedingBuffer;
}
private void WriteIndex(MarshallingContext context, int masterAddress, int position
)
{
if (_indexedField != null)
{
// for now this is a String index only, it takes the entire slot.
StatefulBuffer buffer = new StatefulBuffer(context.Transaction(), UnblockedLength
());
int blockedPosition = context.Container().BlockConverter().BytesToBlocks(position
);
int indexID = masterAddress + blockedPosition;
buffer.SetID(indexID);
buffer.Address(indexID);
TransferContentTo(buffer, UnblockedLength());
_indexedField.AddIndexEntry(context.Transaction(), context.ObjectID(), buffer);
}
}
private static void Merge(MarshallingContext context, int masterAddress, MarshallingBuffer
writeBuffer, MarshallingBuffer parentBuffer, MarshallingBuffer childBuffer, int
linkOffset)
{
int childPosition = writeBuffer.Offset();
writeBuffer.Reserve(childBuffer.BlockedLength());
MergeChildren(context, masterAddress, writeBuffer, childBuffer, linkOffset);
int savedWriteBufferOffset = writeBuffer.Offset();
writeBuffer.Seek(childPosition);
childBuffer.TransferContentTo(writeBuffer._delegate);
writeBuffer.Seek(savedWriteBufferOffset);
parentBuffer.WriteLink(childBuffer, childPosition + linkOffset, childBuffer.UnblockedLength
());
childBuffer.WriteIndex(context, masterAddress, childPosition + linkOffset);
}
private static void MergeChildren(MarshallingContext context, int masterAddress,
MarshallingBuffer writeBuffer, MarshallingBuffer parentBuffer, int linkOffset)
{
if (parentBuffer._children == null)
{
return;
}
IEnumerator i = new Iterator4Impl(parentBuffer._children);
while (i.MoveNext())
{
Merge(context, masterAddress, writeBuffer, parentBuffer, (MarshallingBuffer)i.Current
, linkOffset);
}
}
public override void WriteUpdate(Transaction transaction, IUpdateDepth updatedepth
)
{
if (!_firstUpdate)
{
base.WriteUpdate(transaction, updatedepth);
return;
}
_firstUpdate = false;
var container = transaction.Container();
SetStateClean();
var context = new MarshallingContext(transaction, this, updatedepth
, false);
Handlers4.Write(ClassMetadata().TypeHandler(), context, GetObject());
var length = Container().BlockConverter().BlockAlignedBytes(context.MarshalledLength
());
var slot = context.AllocateNewSlot(length);
var pointer = new Pointer4(GetID(), slot);
var buffer = context.ToWriteBuffer(pointer);
container.WriteUpdate(transaction, pointer, ClassMetadata(), ArrayType.None,
buffer);
if (IsActive())
{
SetStateClean();
}
}
public abstract void Marshall(MarshallingContext context, object child);
public virtual void WriteUpdate(Db4objects.Db4o.Internal.Transaction transaction,
IUpdateDepth updatedepth)
{
ContinueSet(transaction, updatedepth);
// make sure, a concurrent new, possibly triggered by objectOnNew
// is written to the file
// preventing recursive
if (!BeginProcessing())
{
return;
}
object obj = GetObject();
if (!ObjectCanUpdate(transaction, obj) || !IsActive() || obj == null || !ClassMetadata
().IsModified(obj))
{
EndProcessing();
return;
}
MarshallingContext context = new MarshallingContext(transaction, this, updatedepth
, false);
if (context.UpdateDepth().Negative())
{
EndProcessing();
return;
}
ObjectContainerBase container = transaction.Container();
LogEvent(container, "update", Const4.State);
SetStateClean();
context.PurgeFieldIndexEntriesOnUpdate(transaction, container._handlers.ArrayType
(obj));
Handlers4.Write(_class.TypeHandler(), context, obj);
if (context.UpdateDepth().CanSkip(this))
{
EndProcessing();
return;
}
Pointer4 pointer = context.AllocateSlot();
ByteArrayBuffer buffer = context.ToWriteBuffer(pointer);
container.WriteUpdate(transaction, pointer, _class, container._handlers.ArrayType
(obj), buffer);
if (IsActive())
{
SetStateClean();
}
EndProcessing();
container.Callbacks().ObjectOnUpdate(transaction, this);
ClassMetadata().DispatchEvent(transaction, obj, EventDispatchers.Update);
}
/// <summary>return false if class not completely initialized, otherwise true</summary>
internal virtual bool ContinueSet(Db4objects.Db4o.Internal.Transaction trans, IUpdateDepth
updateDepth)
{
if (!BitIsTrue(Const4.Continue))
{
return true;
}
if (!_class.StateOK())
{
return false;
}
if (!_class.AspectsAreInitialized())
{
return false;
}
if (DTrace.enabled)
{
DTrace.Continueset.Log(GetID());
}
BitFalse(Const4.Continue);
MarshallingContext context = new MarshallingContext(trans, this, updateDepth, true
);
Handlers4.Write(ClassMetadata().TypeHandler(), context, GetObject());
Pointer4 pointer = context.AllocateSlot();
ByteArrayBuffer buffer = context.ToWriteBuffer(pointer);
ObjectContainerBase container = trans.Container();
container.WriteNew(trans, pointer, _class, buffer);
object obj = _object;
ObjectOnNew(trans, obj);
if (_class.HasIdentity())
{
_object = container.NewWeakReference(this, obj);
}
SetStateClean();
EndProcessing();
return true;
}
public override void WriteUpdate(Transaction transaction, IUpdateDepth updatedepth
)
{
if (!this._firstUpdate)
{
base.WriteUpdate(transaction, updatedepth);
return;
}
this._firstUpdate = false;
ObjectContainerBase container = transaction.Container();
this.SetStateClean();
MarshallingContext context = new MarshallingContext(transaction, this, updatedepth
, false);
Handlers4.Write(this.ClassMetadata().TypeHandler(), context, this.GetObject());
int length = this.Container().BlockConverter().BlockAlignedBytes(context.MarshalledLength
());
Slot slot = context.AllocateNewSlot(length);
Pointer4 pointer = new Pointer4(this.GetID(), slot);
ByteArrayBuffer buffer = context.ToWriteBuffer(pointer);
container.WriteUpdate(transaction, pointer, this.ClassMetadata(), ArrayType.None,
buffer);
if (this.IsActive())
{
this.SetStateClean();
}
}
public override void Marshall(MarshallingContext context, object obj)
{
// alive needs to be checked by all callers: Done
IUpdateDepth updateDepth = context.UpdateDepth();
if (obj != null && CascadeOnUpdate(context.ClassConfiguration()))
{
context.UpdateDepth(AdjustUpdateDepthForCascade(obj, updateDepth));
}
context.WriteObjectWithCurrentState(GetHandler(), obj);
context.UpdateDepth(updateDepth);
if (HasIndex())
{
context.AddIndexEntry(this, obj);
}
}
private bool IsNotHandlingConcreteType(MarshallingContext context)
{
return context.ClassMetadata() != _ownerMetadata;
}
public override void Marshall(MarshallingContext context, object obj)
{
context.CreateIndirectionWithinSlot();
if (IsNotHandlingConcreteType(context))
{
_typeHandler.Write(context, obj);
return;
}
if (_typeHandler is IInstantiatingTypeHandler)
{
IInstantiatingTypeHandler instantiating = (IInstantiatingTypeHandler)_typeHandler;
instantiating.WriteInstantiation(context, obj);
instantiating.Write(context, obj);
}
else
{
_typeHandler.Write(context, obj);
}
}
public virtual void MarshallAspects(object obj, MarshallingContext context)
{
var trans = context.Transaction();
ITraverseAspectCommand command = new _MarshallingInfoTraverseAspectCommand_122(context
, obj, trans, EnsureFieldList(context));
TraverseAllAspects(context, command);
}
public _MarshallingInfoTraverseAspectCommand_122(MarshallingContext context, object
obj, Transaction trans, IMarshallingInfo baseArg1) : base(baseArg1)
{
this.context = context;
this.obj = obj;
this.trans = trans;
}
public virtual void MergeChildren(MarshallingContext context, int masterAddress,
int linkOffset)
{
MergeChildren(context, masterAddress, this, this, linkOffset);
}
