protected virtual ITypeHandler4 TypeHandlerForClass(ObjectContainerBase container
, IReflectClass fieldType)
{
container.ShowInternalClasses(true);
try
{
return(container.TypeHandlerForClass(Handlers4.BaseType(fieldType)));
}
finally
{
container.ShowInternalClasses(false);
}
}
private void WriteObject(IWriteContext context, ITypeHandler4 typeHandler, object
obj)
{
if (IsPlainObject(obj))
{
context.WriteObject(new PlainObjectHandler(), obj);
return;
}
if (Handlers4.UseDedicatedSlot(context, typeHandler))
{
context.WriteObject(obj);
}
else
{
typeHandler.Write(context, obj);
}
}
public void Defragment(ITypeHandler4 handler)
{
ITypeHandler4 typeHandler = HandlerRegistry.CorrectHandlerVersion(this, handler);
if (Handlers4.UseDedicatedSlot(this, typeHandler))
{
if (Handlers4.HasClassIndex(typeHandler))
{
CopyID();
}
else
{
CopyUnindexedID();
}
return;
}
typeHandler.Defragment(this);
}
private ClassMetadata DetectFieldType()
{
IReflectClass claxx = _containingClass.ClassReflector();
if (claxx == null)
{
return(null);
}
_reflectField = claxx.GetDeclaredField(_name);
if (_reflectField == null)
{
return(null);
}
IReflectClass fieldType = _reflectField.GetFieldType();
if (fieldType == null)
{
return(null);
}
return(Handlers4.ErasedFieldType(Container(), fieldType));
}
public ITypeHandler4 ConfiguredTypeHandler(IReflectClass claxx)
{
object cachedHandler = _mapReflectorToTypeHandler.Get(claxx);
if (null != cachedHandler)
{
return((ITypeHandler4)cachedHandler);
}
ITypeHandler4 typeHandler = Container().ConfigImpl.TypeHandlerForClass(claxx, HandlerVersion
);
if (typeHandler is IBuiltinTypeHandler)
{
((IBuiltinTypeHandler)typeHandler).RegisterReflector(Reflector());
}
if (Handlers4.IsValueType(typeHandler))
{
MapClassToTypeHandler(claxx, typeHandler);
}
return(typeHandler);
}
/// <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 sealed override void CascadeActivation(IActivationContext context)
{
if (!Alive())
{
return;
}
object cascadeTo = CascadingTarget(context);
if (cascadeTo == null)
{
return;
}
IActivationContext cascadeContext = context.ForObject(cascadeTo);
ClassMetadata classMetadata = cascadeContext.ClassMetadata();
if (classMetadata == null)
{
return;
}
EnsureObjectIsActive(cascadeContext);
Handlers4.CascadeActivation(cascadeContext, classMetadata.TypeHandler());
}
private void EnsureObjectIsActive(IActivationContext context)
{
if (!context.Depth().Mode().IsActivate())
{
return;
}
if (Handlers4.IsValueType(GetHandler()))
{
return;
}
ObjectContainerBase container = context.Container();
ClassMetadata classMetadata = container.ClassMetadataForObject(context.TargetObject
());
if (classMetadata == null || !classMetadata.HasIdentity())
{
return;
}
if (container.IsActive(context.TargetObject()))
{
return;
}
container.StillToActivate(context.Descend());
}
private void InitializeFieldType()
{
ObjectContainerBase stream = ContainingClass().Container();
IReflectClass storedClass = stream.Reflector().ForClass(TranslatorStoredClass(_translator
));
Configure(storedClass, false);
IReflectClass baseType = Handlers4.BaseType(storedClass);
stream.ShowInternalClasses(true);
try
{
_fieldType = stream.ProduceClassMetadata(baseType);
}
finally
{
stream.ShowInternalClasses(false);
}
if (null == _fieldType)
{
throw new InvalidOperationException("Cannot produce class metadata for " + baseType
+ "!");
}
}
public override IPreparedComparison PrepareComparison(IContext context, object source
)
{
return(Handlers4.PrepareComparisonFor(TypeHandler(), context, source));
}
public override object InstantiateTransient(UnmarshallingContext context)
{
return(Handlers4.ReadValueType(context, CorrectHandlerVersion(context)));
}
private int CalculateLinkLength(IHandlerVersionContext context)
{
return(Handlers4.CalculateLinkLength(HandlerRegistry.CorrectHandlerVersion(context
, GetHandler())));
}
public bool CanLoadByIndex()
{
return(Handlers4.CanLoadFieldByIndex(GetHandler()));
}
internal virtual bool SupportsIndex()
{
return(Alive() && (GetHandler() is IIndexable4) && (!Handlers4.IsUntyped(GetHandler
())));
}
public object Run()
{
Handlers4.Activate(context, this._enclosing._typeHandler);
return(null);
}
private int CalculateLinkLength()
{
return(Handlers4.CalculateLinkLength(GetHandler()));
}
