private void CascadeActivation(IActivationContext context)
{
IActivationDepth depth = context.Depth();
if (!depth.RequiresActivation())
{
return;
}
if (depth.Mode().IsDeactivate())
{
Container().StillToDeactivate(_transaction, context.TargetObject(), depth, false);
}
else
{
// FIXME: [TA] do we really need to check for isValueType here?
Db4objects.Db4o.Internal.ClassMetadata classMetadata = context.ClassMetadata();
if (classMetadata.IsStruct())
{
classMetadata.CascadeActivation(context);
}
else
{
Container().StillToActivate(context);
}
}
}
public virtual void Activate(Db4objects.Db4o.Internal.Transaction ta, object obj,
IActivationDepth depth)
{
ObjectContainerBase container = ta.Container();
ActivateInternal(container.ActivationContextFor(ta, obj, depth));
container.ActivatePending(ta);
}
public virtual void TestDescendingFromNonTAAwareToTAAware()
{
IActivationDepth depth = NonTAAwareDepth();
IActivationDepth child = depth.Descend(ClassMetadataFor(typeof(TransparentActivationDepthTestCase.TAAware
)));
Assert.IsFalse(child.RequiresActivation());
}
public virtual void Activate(Transaction ta, object obj,
IActivationDepth depth)
{
var container = ta.Container();
ActivateInternal(container.ActivationContextFor(ta, obj, depth));
container.ActivatePending(ta);
}
public virtual void TestSpecificActivationDepth()
{
IActivationDepth depth = Provider().ActivationDepth(3, ActivationMode.Activate);
AssertDescendingDepth(3, depth, typeof(TransparentActivationDepthTestCase.TAAware
));
AssertDescendingDepth(3, depth, typeof(TransparentActivationDepthTestCase.NonTAAware
));
}
public virtual void TestDefaultActivationNonTAAware()
{
IActivationDepth depth = NonTAAwareDepth();
Assert.IsTrue(depth.RequiresActivation());
IActivationDepth child = depth.Descend(ClassMetadataFor(typeof(TransparentActivationDepthTestCase.NonTAAware
)));
Assert.IsTrue(child.RequiresActivation());
}
public ActivationContext4(Db4objects.Db4o.Internal.Transaction transaction, object
obj, IActivationDepth depth)
{
if (null == obj)
{
throw new ArgumentNullException();
}
_transaction = transaction;
_targetObject = obj;
_depth = depth;
}
public ActivationContext4(Db4objects.Db4o.Internal.Transaction transaction, object
obj, IActivationDepth depth)
{
if (null == obj)
{
throw new ArgumentNullException();
}
_transaction = transaction;
_targetObject = obj;
_depth = depth;
}
public object Read(Db4objects.Db4o.Internal.Transaction trans, ByteArrayBuffer buffer
, object obj, IActivationDepth instantiationDepth, int addToIDTree, bool checkIDTree
)
{
UnmarshallingContext context = new UnmarshallingContext(trans, buffer, this, addToIDTree
, checkIDTree);
context.PersistentObject(obj);
context.ActivationDepth(instantiationDepth);
return(context.Read());
}
private void AssertDescendingDepth(int expectedDepth, IActivationDepth depth, Type
clazz)
{
if (expectedDepth < 1)
{
Assert.IsFalse(depth.RequiresActivation());
return;
}
Assert.IsTrue(depth.RequiresActivation());
AssertDescendingDepth(expectedDepth - 1, depth.Descend(ClassMetadataFor(clazz)),
clazz);
}
/// <exception cref="Db4objects.Db4o.Ext.DatabaseClosedException"></exception>
public override object PeekPersisted(Transaction trans, object obj, IActivationDepth
depth, bool committed)
{
_bypassSlotCache = true;
try
{
return(base.PeekPersisted(trans, obj, depth, committed));
}
finally
{
_bypassSlotCache = false;
}
}
public virtual object ReadFullyActivatedObjectForKeys(ITypeHandler4 handler)
{
object obj = ReadObject(handler);
if (obj == null)
{
return(obj);
}
IActivationDepth activationDepth = ActivationDepthProvider().ActivationDepth(int.MaxValue
, ActivationMode.Activate);
Container().Activate(Transaction(), obj, activationDepth);
return(obj);
}
public virtual void Deactivate(Db4objects.Db4o.Internal.Transaction trans, IActivationDepth
depth)
{
if (!depth.RequiresActivation())
{
return;
}
object obj = GetObject();
if (obj == null)
{
return;
}
ObjectContainerBase container = trans.Container();
LogActivation(container, "deactivate");
SetStateDeactivated();
_class.Deactivate(trans, this, depth);
}
public virtual void Deactivate(Transaction trans, IActivationDepth
depth)
{
if (!depth.RequiresActivation())
{
return;
}
var obj = GetObject();
if (obj == null)
{
return;
}
var container = trans.Container();
LogActivation(container, "deactivate");
SetStateDeactivated();
_class.Deactivate(trans, this, depth);
}
public object ReadObject()
{
int objectId = ReadInt();
if (objectId == 0)
{
_lastReferenceReadWasReallyNull = true;
return(null);
}
_lastReferenceReadWasReallyNull = false;
if (objectId == Const4.InvalidObjectId)
{
return(null);
}
ClassMetadata classMetadata = ClassMetadataForObjectId(objectId);
if (null == classMetadata)
{
// TODO: throw here
return(null);
}
IActivationDepth depth = ActivationDepth().Descend(classMetadata);
if (PeekPersisted())
{
return(Container().PeekPersisted(Transaction(), objectId, depth, false));
}
object obj = Container().GetByID2(Transaction(), objectId);
if (null == obj)
{
return(null);
}
// this is OK for boxed value types. They will not be added
// to the list, since they will not be found in the ID tree.
Container().StillToActivate(Container().ActivationContextFor(Transaction(), obj,
depth));
return(obj);
}
public virtual void TestDefaultActivationTAAware()
{
IActivationDepth depth = TAAwareDepth();
Assert.IsFalse(depth.RequiresActivation());
}
public virtual void ForceDeactivation(Transaction trans, IActivationDepth depth,
object obj)
{
DeactivateFields(trans.Container().ActivationContextFor(trans, obj, depth));
}
public virtual void Deactivate(Transaction trans, IObjectInfo reference, IActivationDepth
depth)
{
var obj = reference.GetObject();
if (ObjectCanDeactivate(trans, reference))
{
ForceDeactivation(trans, depth, obj);
ObjectOnDeactivate(trans, reference);
}
}
public virtual void Deactivate(Transaction trans, IActivationDepth
depth)
{
if (!depth.RequiresActivation())
{
return;
}
var obj = GetObject();
if (obj == null)
{
return;
}
var container = trans.Container();
LogActivation(container, "deactivate");
SetStateDeactivated();
_class.Deactivate(trans, this, depth);
}
internal object Read(Db4objects.Db4o.Internal.Transaction trans, IActivationDepth
instantiationDepth, int addToIDTree, bool checkIDTree)
{
return(Read(trans, null, null, instantiationDepth, addToIDTree, checkIDTree));
}
public virtual ActivationContext4 ActivationContextFor(Transaction ta, object obj
, IActivationDepth depth)
{
return new ActivationContext4(ta, obj, depth);
}
public _IFunction4_189(ObjectContainerBase _enclosing, object obj, IActivationDepth
depth)
{
this._enclosing = _enclosing;
this.obj = obj;
this.depth = depth;
}
public void Activate(Db4objects.Db4o.Internal.Transaction trans, object obj, IActivationDepth
depth)
{
lock (_lock)
{
AsTopLevelCall(new _IFunction4_189(this, obj, depth), trans);
}
}
public virtual ObjectReference PeekReference(Transaction trans, int id, IActivationDepth
depth, bool resetJustPeeked)
{
ObjectReference @ref = new ObjectReference(id);
@ref.PeekPersisted(trans, depth);
if (resetJustPeeked)
{
_justPeeked = null;
}
return @ref;
}
public _IFunction4_1271(ObjectContainerBase _enclosing, object obj, bool committed
, IActivationDepth depth)
{
this._enclosing = _enclosing;
this.obj = obj;
this.committed = committed;
this.depth = depth;
}
private void AssertDescendingDepth(int expectedDepth, IActivationDepth depth, Type
clazz)
{
if (expectedDepth < 1)
{
Assert.IsFalse(depth.RequiresActivation());
return;
}
Assert.IsTrue(depth.RequiresActivation());
AssertDescendingDepth(expectedDepth - 1, depth.Descend(ClassMetadataFor(clazz)),
clazz);
}
/// <exception cref="Db4objects.Db4o.Ext.DatabaseClosedException"></exception>
public virtual object PeekPersisted(Transaction trans, object obj, IActivationDepth
depth, bool committed)
{
// TODO: peekPersisted is not stack overflow safe, if depth is too high.
lock (_lock)
{
CheckClosed();
return AsTopLevelCall(new _IFunction4_1271(this, obj, committed, depth), trans);
}
}
internal void PeekPersisted(Db4objects.Db4o.Internal.Transaction trans, IActivationDepth
depth)
{
SetObject(Read(trans, depth, Const4.Transient, false));
}
public object PeekPersisted(Transaction trans, int id, IActivationDepth depth, bool
resetJustPeeked)
{
if (resetJustPeeked)
{
_justPeeked = null;
}
else
{
TreeInt ti = new TreeInt(id);
TreeIntObject tio = (TreeIntObject)Tree.Find(_justPeeked, ti);
if (tio != null)
{
return tio._object;
}
}
ObjectReference @ref = PeekReference(trans, id, depth, resetJustPeeked);
return @ref.GetObject();
}
public virtual void Activate(Db4objects.Db4o.Internal.Transaction ta, object obj,
IActivationDepth depth)
{
ObjectContainerBase container = ta.Container();
ActivateInternal(container.ActivationContextFor(ta, obj, depth));
container.ActivatePending(ta);
}
// overridden to do nothing in YapObjectCarrier
internal List4 StillTo1(Transaction trans, List4 still, object obj, IActivationDepth
depth)
{
if (obj == null || !depth.RequiresActivation())
{
return still;
}
ObjectReference @ref = trans.ReferenceForObject(obj);
if (@ref != null)
{
if (HandledInCurrentTopLevelCall(@ref))
{
return still;
}
FlagAsHandled(@ref);
return new List4(still, new ObjectContainerBase.PendingActivation(@ref, depth));
}
IReflectClass clazz = ReflectorForObject(obj);
if (clazz.IsArray())
{
if (!clazz.GetComponentType().IsPrimitive())
{
IEnumerator arr = ArrayHandler.Iterator(clazz, obj);
while (arr.MoveNext())
{
object current = arr.Current;
if (current == null)
{
continue;
}
ClassMetadata classMetadata = ClassMetadataForObject(current);
still = StillTo1(trans, still, current, depth.Descend(classMetadata));
}
}
return still;
}
else
{
if (obj is Entry)
{
still = StillTo1(trans, still, ((Entry)obj).key, depth);
still = StillTo1(trans, still, ((Entry)obj).value, depth);
}
else
{
if (depth.Mode().IsDeactivate())
{
// Special handling to deactivate .net structs
ClassMetadata metadata = ClassMetadataForObject(obj);
if (metadata != null && metadata.IsStruct())
{
metadata.ForceDeactivation(trans, depth, obj);
}
}
}
}
return still;
}
public virtual void Deactivate(Db4objects.Db4o.Internal.Transaction trans, IActivationDepth
depth)
{
if (!depth.RequiresActivation())
{
return;
}
object obj = GetObject();
if (obj == null)
{
return;
}
ObjectContainerBase container = trans.Container();
LogActivation(container, "deactivate");
SetStateDeactivated();
_class.Deactivate(trans, this, depth);
}
public void StillToDeactivate(Transaction trans, object a_object, IActivationDepth
a_depth, bool a_forceUnknownDeactivate)
{
_stillToDeactivate = StillTo1(trans, _stillToDeactivate, a_object, a_depth);
}
internal void PeekPersisted(Db4objects.Db4o.Internal.Transaction trans, IActivationDepth
depth)
{
SetObject(Read(trans, depth, Const4.Transient, false));
}
public PendingActivation(ObjectReference ref_, IActivationDepth depth_)
{
this.@ref = ref_;
this.depth = depth_;
}
internal object Read(Db4objects.Db4o.Internal.Transaction trans, IActivationDepth
instantiationDepth, int addToIDTree, bool checkIDTree)
{
return Read(trans, null, null, instantiationDepth, addToIDTree, checkIDTree);
}
private void DeactivateInternal(Transaction trans, object obj, IActivationDepth depth
)
{
StillToDeactivate(trans, obj, depth, true);
DeactivatePending(trans);
}
public object Read(Db4objects.Db4o.Internal.Transaction trans, ByteArrayBuffer buffer
, object obj, IActivationDepth instantiationDepth, int addToIDTree, bool checkIDTree
)
{
UnmarshallingContext context = new UnmarshallingContext(trans, buffer, this, addToIDTree
, checkIDTree);
context.PersistentObject(obj);
context.ActivationDepth(instantiationDepth);
return context.Read();
}
public virtual void ActivationDepth(IActivationDepth depth)
{
_activationDepth = depth;
}
public virtual void ActivationDepth(IActivationDepth depth)
{
_activationDepth = depth;
}
/// <exception cref="Db4objects.Db4o.Ext.DatabaseClosedException"></exception>
public override object PeekPersisted(Transaction trans, object obj, IActivationDepth
depth, bool committed)
{
_bypassSlotCache = true;
try
{
return base.PeekPersisted(trans, obj, depth, committed);
}
finally
{
_bypassSlotCache = false;
}
}
public virtual void Activate(Transaction ta, object obj,
IActivationDepth depth)
{
var container = ta.Container();
ActivateInternal(container.ActivationContextFor(ta, obj, depth));
container.ActivatePending(ta);
}
