public override void CascadeStoreOperation(CustomStoreOperationKind changeKind)
{
CustomObjectContext context = ObjectContextWeakRef.Target;
Debug.Assert(null != context);
Queue <object> objectsToBeRemoved = null;
foreach (object entityObject in this)
{
if (CustomStoreOperationKind.Add == changeKind)
{
context.AddObject(RelationshipMetadata.To.EntitySetType.Name, entityObject);
}
else if (CustomStoreOperationKind.Delete == changeKind)
{
if (null == objectsToBeRemoved)
{
objectsToBeRemoved = new Queue <object>();
}
objectsToBeRemoved.Enqueue(entityObject);
}
}
if (null != objectsToBeRemoved && objectsToBeRemoved.Count > 0)
{
foreach (object entityObject in objectsToBeRemoved)
{
Remove(entityObject);
DeleteObjectIfTransietOrphan(context, entityObject);
}
}
}
protected override void UpdateRelatedEndInternal(
CustomObjectContext objectContext,
RelatedEndEntityObject relatedEntityObject,
CustomStoreOperationKind changeKind
)
{
if (CustomStoreOperationKind.Add == changeKind)
{
if (null != RelationshipMetadata.To.RelatedProperty)
{
RelationshipMetadata.To.RelatedProperty.SetValue(relatedEntityObject, _thisEndObject);
}
if (null != objectContext)
{
objectContext.AddObject(RelationshipMetadata.To.EntitySetType.Name, relatedEntityObject);
}
}
else
{
Debug.Assert(CustomStoreOperationKind.Delete == changeKind);
if (null != RelationshipMetadata.To.RelatedProperty)
{
RelationshipMetadata.To.RelatedProperty.SetValue(relatedEntityObject, null);
}
if (null != objectContext)
{
objectContext.DeleteObject(relatedEntityObject);
}
}
}
protected override void UpdateRelatedEndInternal(
CustomObjectContext objectContext,
RelatedEndEntityObject relatedEntityObject,
CustomStoreOperationKind changeKind
)
{
if (CustomStoreOperationKind.Add == changeKind)
{
if (null != RelationshipMetadata.To.RelatedProperty)
{
object relatedManyToManyCollection = RelationshipMetadata.To.RelatedProperty.GetValue(relatedEntityObject);
Debug.Assert(null != relatedManyToManyCollection);
if (relatedManyToManyCollection is CustomObjectCollectionBase)
{
Debug.Assert(relatedManyToManyCollection is CustomObjectCollectionBase);
var managedManyToManyCollection = (CustomObjectCollectionBase)relatedManyToManyCollection;
managedManyToManyCollection.Add(_thisEndObject);
}
else
{
MethodInfo addMethod = relatedManyToManyCollection.GetType().GetMethod("Add");
Debug.Assert(null != addMethod);
addMethod.Invoke(relatedManyToManyCollection, new object[] { _thisEndObject });
}
}
if (null != objectContext)
{
objectContext.AddObject(RelationshipMetadata.To.EntitySetType.Name, relatedEntityObject);
}
}
else
{
Debug.Assert(CustomStoreOperationKind.Delete == changeKind);
if (null != RelationshipMetadata.To.RelatedProperty)
{
object relatedManyToManyCollection = RelationshipMetadata.To.RelatedProperty.GetValue(relatedEntityObject);
if (relatedManyToManyCollection is CustomObjectCollectionBase)
{
Debug.Assert(relatedManyToManyCollection is CustomObjectCollectionBase);
var managedManyToManyCollection = (CustomObjectCollectionBase)relatedManyToManyCollection;
managedManyToManyCollection.Remove(_thisEndObject);
}
else
{
MethodInfo removeMethod = relatedManyToManyCollection.GetType().GetMethod("Remove");
Debug.Assert(null != removeMethod);
removeMethod.Invoke(relatedManyToManyCollection, new object[] { _thisEndObject });
}
if (null != objectContext)
{
DeleteObjectIfTransietOrphan(objectContext, relatedEntityObject);
}
}
}
}
public void PreAtachExistingDataObjects(CustomObjectContext objectContext)
{
if (!_defaultDataCreated)
{
CreateAndAttachDefaultDataObjects(objectContext);
objectContext.SaveAllChanges();
_defaultDataCreated = true;
}
else
{
foreach (var entitySetEntry in _entitySetMap.Values)
{
foreach (object entityObject in entitySetEntry.EntityObjects)
{
objectContext.AddObject(entitySetEntry.EntitySetType.Name, entityObject);
}
}
objectContext.AcceptAllChanges();
}
}
public override void CascadeStoreOperation(CustomStoreOperationKind operationKind)
{
CustomObjectContext context = ObjectContextWeakRef.Target;
Debug.Assert(null != context);
foreach (object entityObject in this)
{
if (CustomStoreOperationKind.Add == operationKind)
{
context.AddObject(RelationshipMetadata.To.EntitySetType.Name, entityObject);
}
else if (CustomStoreOperationKind.Delete == operationKind)
{
context.DeleteObject(entityObject);
}
else
{
Debug.Fail("Unexpected store operation kind", operationKind.ToString());
}
}
}