private FrozenObjectInfo(ObjectReference @ref, VirtualAttributes virtualAttributes
) : this(@ref == null ? null : @ref.GetObject(), @ref == null ? -1 : @ref.GetID(
), virtualAttributes == null ? null : virtualAttributes.i_database, virtualAttributes
== null ? -1 : virtualAttributes.i_uuid, virtualAttributes == null ? 0 : virtualAttributes
.i_version)
{
}
private void Marshall(Transaction trans, ObjectReference @ref, IWriteBuffer buffer
, bool isNew)
{
if (!trans.SupportsVirtualFields())
{
MarshallIgnore(buffer);
return;
}
ObjectContainerBase stream = trans.Container();
HandlerRegistry handlers = stream._handlers;
bool migrating = false;
if (stream._replicationCallState == Const4.New)
{
IDb4oReplicationReferenceProvider provider = handlers._replicationReferenceProvider;
object parentObject = @ref.GetObject();
IDb4oReplicationReference replicationReference = provider.ReferenceFor(parentObject
);
if (replicationReference != null)
{
migrating = true;
VirtualAttributes va = @ref.ProduceVirtualAttributes();
va.i_version = replicationReference.Version();
va.i_uuid = replicationReference.LongPart();
va.i_database = replicationReference.SignaturePart();
}
}
if (@ref.VirtualAttributes() == null)
{
@ref.ProduceVirtualAttributes();
migrating = false;
}
Marshall(trans, @ref, buffer, migrating, isNew);
}
private FrozenObjectInfo(ObjectReference @ref, VirtualAttributes virtualAttributes
) : this(@ref == null ? null : @ref.GetObject(), @ref == null ? -1 : @ref.GetID(
), virtualAttributes == null ? null : virtualAttributes.i_database, virtualAttributes
== null ? -1 : virtualAttributes.i_uuid, virtualAttributes == null ? 0 : virtualAttributes
.i_version)
{
}
/// <summary>HCTREE</summary>
public virtual Db4objects.Db4o.Internal.ObjectReference Hc_add(Db4objects.Db4o.Internal.ObjectReference
newRef)
{
if (newRef.GetObject() == null)
{
return(this);
}
newRef.Hc_init();
return(Hc_add1(newRef));
}
/// <summary>HCTREE</summary>
public virtual ObjectReference Hc_add(ObjectReference
newRef)
{
if (newRef.GetObject() == null)
{
return(this);
}
newRef.Hc_init();
return(Hc_add1(newRef));
}
public object ObjectForIdFromCache(int id)
{
ObjectReference @ref = ReferenceForId(id);
if (@ref == null)
{
return(null);
}
object candidate = @ref.GetObject();
if (candidate == null)
{
RemoveReference(@ref);
}
return(candidate);
}
public virtual IObjectInfo FrozenReferenceFor(int id)
{
ObjectReference @ref = ReferenceForId(id);
if (@ref != null)
{
return(new FrozenObjectInfo(this, @ref, true));
}
@ref = Container().PeekReference(SystemTransaction(), id, new FixedActivationDepth
(0), true);
if (@ref == null || @ref.GetObject() == null)
{
return(null);
}
return(new FrozenObjectInfo(SystemTransaction(), @ref, true));
}
public ObjectReference ReferenceForId(int id)
{
ObjectReference @ref = ReferenceSystem().ReferenceForId(id);
if (@ref != null)
{
if (@ref.GetObject() == null)
{
RemoveReference(@ref);
return(null);
}
return(@ref);
}
if (ParentTransaction() != null)
{
return(ParentTransaction().ReferenceForId(id));
}
return(null);
}
private void Marshall(Transaction trans, ObjectReference @ref, IWriteBuffer buffer
, bool isNew)
{
if (!trans.SupportsVirtualFields())
{
MarshallIgnore(buffer);
return;
}
ObjectContainerBase stream = trans.Container();
HandlerRegistry handlers = stream._handlers;
bool migrating = false;
if (stream._replicationCallState == Const4.New)
{
IDb4oReplicationReferenceProvider provider = handlers._replicationReferenceProvider;
object parentObject = @ref.GetObject();
IDb4oReplicationReference replicationReference = provider.ReferenceFor(parentObject
);
if (replicationReference != null)
{
migrating = true;
VirtualAttributes va = @ref.ProduceVirtualAttributes();
va.i_version = replicationReference.Version();
va.i_uuid = replicationReference.LongPart();
va.i_database = replicationReference.SignaturePart();
}
}
if (@ref.VirtualAttributes() == null)
{
@ref.ProduceVirtualAttributes();
migrating = false;
}
Marshall(trans, @ref, buffer, migrating, isNew);
}
public HardObjectReference GetHardObjectReferenceById(Transaction trans, int id)
{
if (id <= 0)
{
return HardObjectReference.Invalid;
}
ObjectReference @ref = trans.ReferenceForId(id);
if (@ref != null)
{
// Take care about handling the returned candidate reference.
// If you loose the reference, weak reference management might also.
object candidate = @ref.GetObject();
if (candidate != null)
{
return new HardObjectReference(@ref, candidate);
}
trans.RemoveReference(@ref);
}
@ref = new ObjectReference(id);
object readObject = @ref.Read(trans, new LegacyActivationDepth(0), Const4.AddToIdTree
, true);
if (readObject == null)
{
return HardObjectReference.Invalid;
}
// check class creation side effect and simply retry recursively
// if it hits:
if (readObject != @ref.GetObject())
{
return GetHardObjectReferenceById(trans, id);
}
return new HardObjectReference(@ref, readObject);
}
public override bool CanSkip(ObjectReference @ref)
{
ClassMetadata clazz = @ref.ClassMetadata();
return clazz.Reflector().ForClass(typeof(IActivatable)).IsAssignableFrom(clazz.ClassReflector
()) && !_query.IsModified(@ref.GetObject());
}
private static bool IsInstantiatedReference(ObjectReference @ref)
{
return @ref != null && @ref.GetObject() != null;
}
private void Unbind(ObjectReference objectReference)
{
object obj = objectReference.GetObject();
if (obj == null || !(obj is IActivatable))
{
return;
}
Bind(obj, null);
}
private static bool IsInstantiatedReference(ObjectReference @ref)
{
return(@ref != null && @ref.GetObject() != null);
}
/// <summary>HCTREE</summary>
public virtual ObjectReference Hc_add(ObjectReference
newRef)
{
if (newRef.GetObject() == null)
{
return this;
}
newRef.Hc_init();
return Hc_add1(newRef);
}
