Package org.eclipse.emf.cdo.transaction
Schnittstelle CDOTransactionHandler1.WithUndo
- Alle Superschnittstellen:
CDOTransactionHandler1
,CDOTransactionHandlerBase
- Alle bekannten Implementierungsklassen:
CDOAutoAttacher
,CDOAutoLocker
,CDOAutoLocker.ForSingleValuedChanges
,CDODefaultTransactionHandler
,CDODefaultTransactionHandler1
- Umschließende Schnittstelle:
CDOTransactionHandler1
A call-back interface that is called by a
transaction
before objects
are
attached, modified, undone or detached.- Seit:
- 4.6
- Autor:
- Eike Stepper
-
Verschachtelte Klassen - Übersicht
Von Schnittstelle geerbte verschachtelte Klassen/Schnittstellen org.eclipse.emf.cdo.transaction.CDOTransactionHandler1
CDOTransactionHandler1.WithUndo
-
Methodenübersicht
Modifizierer und TypMethodeBeschreibungvoid
undoingObject
(CDOTransaction transaction, CDOObject object, CDOFeatureDelta featureDelta) Called by aCDOTransaction
before an object is modified.Von Schnittstelle geerbte Methoden org.eclipse.emf.cdo.transaction.CDOTransactionHandler1
attachingObject, detachingObject, modifyingObject
-
Methodendetails
-
undoingObject
Called by aCDOTransaction
before an object is modified. The implementor of this method is allowed to throw an unchecked exception that will propagate up to the operation that is about to modify the object (thereby preventing the operation from completing successfully).Note: Implementors must not start threads which access the
view
and wait for their completion since deadlocks can result. The following example causes a deadlock:
getDisplay().syncExec(new Runnable() { public void run() { try { cdoObject.getName(); } catch (Exception ignore) { } } });
If you need to synchronously execute threads which access theview
you should useCDOAsyncTransactionHandler
.
-