public void DeleteParent(Parent parent)
{
CompositionHelper.Validate(parent);
SetOperationInvoked(parent);
((CompositionEntityBase)parent).OperationResult = "Delete";
}
public void CustomOp_Parent(Parent parent)
{
// first validate the hierarchy
CompositionHelper.Validate(parent);
((CompositionEntityBase)parent).OperationResult += ",CustomOp_Parent";
}
public void DeleteParent(Parent parent)
{
// normally you wouldn't validate a deleted hierarchy,
// but we do it here for test validation
CompositionHelper.Validate(parent);
((CompositionEntityBase)parent).OperationResult = "Delete";
// Delete all children in the hierarchy.
foreach (Child child in parent.Children)
{
foreach (GrandChild grandChild in child.Children)
{
GreatGrandChild greatGrandChild = grandChild.Child;
if (greatGrandChild != null)
{
}
}
}
}
/// <summary>
/// For the specified entity, recursively verifies that all parent operations
/// have been completed
/// </summary>
private void VerifyOperationOrdering(object entity, bool isCustomMethod)
{
// determine the parent
object parent = null;
if (entity is Child)
{
parent = ((Child)entity).Parent;
}
else if (entity is GrandChild)
{
parent = ((GrandChild)entity).Parent;
}
else if (entity is GreatGrandChild)
{
parent = ((GreatGrandChild)entity).Parent;
}
// search the changeset for parent operations
IEnumerable <ChangeSetEntry> parentOperations = this.ChangeSet.ChangeSetEntries.Where(p => p.Entity == parent);
foreach (ChangeSetEntry parentOperation in parentOperations)
{
if (!isCustomMethod)
{
CompositionHelper.Assert(this._invokedOperations.Contains(parentOperation), "Child operation executed before parent!");
}
else
{
if (parentOperation.EntityActions != null && parentOperation.EntityActions.Any())
{
var entityAction = parentOperation.EntityActions.Single();
CompositionHelper.Assert(this.invokedCustomMethods.Contains(entityAction.Key), "Child custom method executed before parent!");
}
}
// now recursively verify
this.VerifyOperationOrdering(parentOperation.Entity, isCustomMethod);
}
}
public void InsertParent(Parent parent)
{
// first validate the hierarchy
CompositionHelper.Validate(parent);
((CompositionEntityBase)parent).OperationResult = "Insert";
// for a new parent, all children will also be new
// so we enumerate all and "add" them
foreach (Child child in parent.Children)
{
((CompositionEntityBase)child).OperationResult = "Insert";
foreach (GrandChild grandChild in child.Children)
{
((CompositionEntityBase)grandChild).OperationResult = "Insert";
GreatGrandChild greatGrandChild = grandChild.Child;
if (greatGrandChild != null)
{
((CompositionEntityBase)greatGrandChild).OperationResult = "Insert";
}
}
}
}
/// <summary>
/// Use the changeset composition APIs to navigate all child updates
/// </summary>
/// <param name="parent"></param>
private void NavigateChildChanges(CI_Parent parent)
{
// if the parent has had property modifications, original will
// be non-null
if (this.ChangeSet.GetChangeOperation(parent) != ChangeOperation.Insert)
{
CI_Parent originalParent = this.ChangeSet.GetOriginal(parent);
}
// navigate all child changes w/o specifying operation type
Dictionary <object, ChangeOperation> changeOperationMap = new Dictionary <object, ChangeOperation>();
foreach (CI_Child child in this.ChangeSet.GetAssociatedChanges(parent, p => p.Children))
{
ChangeOperation op = this.ChangeSet.GetChangeOperation(child);
changeOperationMap[child] = op;
if (this.ChangeSet.GetChangeOperation(child) != ChangeOperation.Insert)
{
CI_Child originalChild = this.ChangeSet.GetOriginal(child);
}
if (op == ChangeOperation.None)
{
}
else if (op == ChangeOperation.Insert)
{
CompositionInheritanceHelper.Assert(this.ChangeSet.ChangeSetEntries.SingleOrDefault(p => p.Entity == child && p.Operation == DomainOperation.Insert) != null,
"Expected corresponding insert operation not found.");
}
else if (op == ChangeOperation.Update)
{
CompositionInheritanceHelper.Assert(this.ChangeSet.ChangeSetEntries.SingleOrDefault(p => p.Entity == child && p.Operation == DomainOperation.Update) != null,
"Expected corresponding update operation not found.");
}
else if (op == ChangeOperation.Delete)
{
CompositionInheritanceHelper.Assert(this.ChangeSet.ChangeSetEntries.SingleOrDefault(p => p.Entity == child && p.Operation == DomainOperation.Delete) != null,
"Expected corresponding delete operation not found.");
}
}
// verify all child operations against the map we built up during enumeration
// of associated changes to ensure all operations were returned
foreach (ChangeSetEntry operation in this.ChangeSet.ChangeSetEntries.Where(p => p.Entity.GetType() != typeof(CI_Parent)))
{
switch (operation.Operation)
{
case DomainOperation.Insert:
CompositionHelper.Assert(changeOperationMap.ContainsKey(operation.Entity) &&
changeOperationMap[operation.Entity] == ChangeOperation.Insert,
"Expected insert operation was not returned from GetAssociatedChanges.");
break;
case DomainOperation.Update:
CompositionHelper.Assert(changeOperationMap.ContainsKey(operation.Entity) &&
changeOperationMap[operation.Entity] == ChangeOperation.Update,
"Expected update operation was not returned from GetAssociatedChanges.");
break;
case DomainOperation.Delete:
CompositionHelper.Assert(
changeOperationMap.ContainsKey(operation.Entity) &&
changeOperationMap[operation.Entity] == ChangeOperation.Delete,
"Expected delete operation was not returned from GetAssociatedChanges.");
break;
}
}
// navigate all child changes specifying operation type
foreach (CI_Child child in this.ChangeSet.GetAssociatedChanges(parent, p => p.Children, ChangeOperation.None))
{
}
foreach (CI_Child child in this.ChangeSet.GetAssociatedChanges(parent, p => p.Children, ChangeOperation.Insert))
{
}
foreach (CI_Child child in this.ChangeSet.GetAssociatedChanges(parent, p => p.Children, ChangeOperation.Update))
{
}
foreach (CI_Child child in this.ChangeSet.GetAssociatedChanges(parent, p => p.Children, ChangeOperation.Delete))
{
}
}
public void CustomOp_Parent(Parent parent)
{
CompositionHelper.Validate(parent);
this.SetOperationInvoked(parent, "CustomOp_Parent");
((CompositionEntityBase)parent).OperationResult += ",CustomOp_Parent";
}
public void UpdateParent(Parent parent)
{
// first validate the hierarchy
CompositionHelper.Validate(parent);
((CompositionEntityBase)parent).OperationResult = "Update";
// for an updated, children might be added, updated
// or deleted. We need to enumerate all and act appropriately
foreach (Child child in this.ChangeSet.GetAssociatedChanges(parent, p => p.Children))
{
ChangeOperation changeOp = this.ChangeSet.GetChangeOperation(child);
if (changeOp == ChangeOperation.Insert)
{
((CompositionEntityBase)child).OperationResult = "Insert";
}
else if (changeOp == ChangeOperation.Update)
{
((CompositionEntityBase)child).OperationResult = "Update";
}
else if (changeOp == ChangeOperation.Delete)
{
((CompositionEntityBase)child).OperationResult = "Delete";
}
// now process child updates for the child
foreach (GrandChild grandChild in this.ChangeSet.GetAssociatedChanges(child, p => p.Children))
{
changeOp = this.ChangeSet.GetChangeOperation(grandChild);
if (changeOp == ChangeOperation.Insert)
{
((CompositionEntityBase)grandChild).OperationResult = "Insert";
}
else if (changeOp == ChangeOperation.Update)
{
((CompositionEntityBase)grandChild).OperationResult = "Update";
}
else if (changeOp == ChangeOperation.Delete)
{
((CompositionEntityBase)grandChild).OperationResult = "Delete";
}
// finally, process any great grand child updates
GreatGrandChild updatedGreateGrandChild = this.ChangeSet.GetAssociatedChanges(grandChild, p => p.Child).Cast <GreatGrandChild>().SingleOrDefault();
if (updatedGreateGrandChild != null)
{
changeOp = this.ChangeSet.GetChangeOperation(updatedGreateGrandChild);
if (changeOp == ChangeOperation.Insert)
{
((CompositionEntityBase)updatedGreateGrandChild).OperationResult = "Insert";
}
else if (changeOp == ChangeOperation.Update)
{
((CompositionEntityBase)updatedGreateGrandChild).OperationResult = "Update";
}
else if (changeOp == ChangeOperation.Delete)
{
((CompositionEntityBase)updatedGreateGrandChild).OperationResult = "Delete";
}
}
}
}
}
public IQueryable <Parent> GetParents()
{
return(CompositionHelper.CreateCompositionHierarchy().AsQueryable());
}
