コード例 #1
0
        protected override void OnChangeCompleted(
            object relatedEntityObject,
            CustomStoreOperationKind changeKind
            )
        {
            base.OnChangeCompleted(relatedEntityObject, changeKind);

            if (null != ObjectContextWeakRef)
            {
                Debug.Assert(relatedEntityObject is EntityObjectType);

                CustomObjectContext objectContext = ObjectContextWeakRef.Target;
                if (null != objectContext && null != RelationshipMetadata)
                {
                    var thisRelationshipEnd = new CustomRelationshipEnd(_thisEndEntityObject, RelationshipMetadata.From);
                    if (objectContext.RelationshipHelper.IsVisitedRelationshipEnd(thisRelationshipEnd))
                    {
                        return;
                    }

                    try
                    {
                        objectContext.RelationshipHelper.AddToVisitedRelationshipEnds(thisRelationshipEnd);
                        UpdateRelatedEndInternal(objectContext, (EntityObjectType)relatedEntityObject, changeKind);
                    }
                    finally
                    {
                        objectContext.RelationshipHelper.RemoveFromVisitedRelationshipEnds(thisRelationshipEnd);
                    }
                }
            }
        }
コード例 #2
0
        protected void ValidateStateTransition(
            EntityObjectType relatedEntityObject,
            CustomStoreOperationKind changeKind
            )
        {
            if (null != ObjectContextWeakRef)
            {
                CustomObjectContext objectContext = ObjectContextWeakRef.Target;
                if (null != objectContext && null != RelationshipMetadata)
                {
                    var thisRelationshipEnd = new CustomRelationshipEnd(_thisEndEntityObject, RelationshipMetadata.From);
                    if (objectContext.RelationshipHelper.IsVisitedRelationshipEnd(thisRelationshipEnd))
                    {
                        return;
                    }

                    try
                    {
                        objectContext.RelationshipHelper.AddToVisitedRelationshipEnds(thisRelationshipEnd);
                        ValidateStateTransitionInternal(objectContext, relatedEntityObject, changeKind);
                    }
                    finally
                    {
                        objectContext.RelationshipHelper.RemoveFromVisitedRelationshipEnds(thisRelationshipEnd);
                    }
                }
            }
        }