public void OnEvent(object sender, CancellableObjectEventArgs
args)
{
var obj = args.Object;
Assert.IsFalse(obj is IObjectContainer);
}
// #example: Validation support
private static void ValidateObject(object sender,
CancellableObjectEventArgs eventInfo)
{
ValidationContext context = new ValidationContext(eventInfo.Object, null, null);
// This throws when the object isn't valid.
Validator.ValidateObject(eventInfo.Object, context, true);
}
public void OnEvent(object sender, CancellableObjectEventArgs
args)
{
var obj = args.Object;
if (obj is NonActivatableItem)
{
((ICancellableEventArgs)args).Cancel();
}
}
void registry_Updating(object sender, CancellableObjectEventArgs args)
{
ITimestampable timestampable = args.Object as ITimestampable;
if (timestampable == null)
{
return;
}
timestampable.Updated = DateTime.Now;
}
static void eventRegistry_Validate(object sender, CancellableObjectEventArgs args)
{
ObjectValidator ovr = GetObjectValidator(args.Object);
bool isValid = ovr.IsValid(args.Object);
if (!isValid)
{
args.Cancel();
ovr.Validate(args.Object);
}
}
public void OnEvent(object sender, Db4objects.Db4o.Events.CancellableObjectEventArgs
args)
{
CancellableObjectEventArgs cancellable = (CancellableObjectEventArgs)args;
if (cancellable.Object is Page)
{
Page page = (Page)cancellable.Object;
if (!page.IsDirty())
{
cancellable.Cancel();
}
}
}
public void OnEvent(object sender, CancellableObjectEventArgs
args)
{
var cancellable = args;
if (cancellable.Object is Page)
{
var page = (Page)cancellable.Object;
if (!page.IsDirty())
{
cancellable.Cancel();
}
}
}
internal virtual bool TriggerCancellableObjectEventArgsInCallback(Transaction transaction
, System.EventHandler <CancellableObjectEventArgs> e, IObjectInfo objectInfo, object
o)
{
if (!(e != null))
{
return(true);
}
CancellableObjectEventArgs args = new CancellableObjectEventArgs(transaction, objectInfo
, o);
WithExceptionHandlingInCallback(new _IRunnable_260(e, args));
return(!args.IsCancelled);
}
// #example: Referential integrity
private static void ReferentialIntegrityCheck(object sender,
CancellableObjectEventArgs eventArguments)
{
object toDelete = eventArguments.Object;
if (toDelete is Pilot)
{
IObjectContainer container = eventArguments.ObjectContainer();
IEnumerable <Car> cars = from Car c in container
where c.Pilot == toDelete
select c;
if (cars.Count() > 0)
{
eventArguments.Cancel();
}
}
}
public void OnEvent(object sender, CancellableObjectEventArgs
args)
{
var obj = args.Object;
if (!(obj is Item))
{
return;
}
var transaction = (Transaction)args.Transaction
();
var container = transaction.ObjectContainer();
var foo = (Item)obj;
var child = foo._child;
if (isNetworking)
{
container.Activate(child, 1);
}
child._name += "*";
container.Store(child);
}
public void OnEvent(object sender, CancellableObjectEventArgs
args)
{
called.value = true;
foundTrans.value = args.Transaction();
}
public _IRunnable_260(System.EventHandler <CancellableObjectEventArgs> e, CancellableObjectEventArgs
args)
{
this.e = e;
this.args = args;
}
public void OnEvent(object sender, CancellableObjectEventArgs
args)
{
}
void OnCreating(object sender, CancellableObjectEventArgs args)
{
_events.Add("Creating");
Assert.IsFalse(args.IsCancelled);
args.Cancel();
}
public void OnEvent(object sender, CancellableObjectEventArgs
args)
{
Assert.Expect(typeof(InvalidOperationException), new _ICodeBlock_18(executed, args
));
}
public void OnEvent(object sender, CancellableObjectEventArgs
args)
{
((ICancellableEventArgs)args).Cancel();
}
public void OnEvent(object sender, CancellableObjectEventArgs
args)
{
throw new Exception();
}
public void OnEvent(object sender, CancellableObjectEventArgs
args)
{
_enclosing.AssertClientTransaction(args);
activationLog.xing = true;
}
public void OnEvent(object sender, CancellableObjectEventArgs
args)
{
deletionLog.xing = true;
_enclosing.AssertItemIsActive(args);
}
