org.eclipse.emf.cdo.transaction
Class CDOAutoAttacher

java.lang.Object
  org.eclipse.emf.cdo.transaction.CDODefaultTransactionHandler
      org.eclipse.emf.cdo.transaction.CDOAutoAttacher

All Implemented Interfaces:

CDOTransactionHandler

public class CDOAutoAttacher
extends CDODefaultTransactionHandler

Since:

2.0

Constructor Summary

CDOAutoAttacher(CDOTransaction transaction)

Method Summary

void	attachingObject(CDOTransaction transaction, CDOObject object) Called by a CDOTransaction before an object is added.
CDOTransaction	getTransaction()
void	modifyingObject(CDOTransaction transaction, CDOObject object, CDOFeatureDelta featureChange) Called by a CDOTransaction before an object is modified.
protected void	persist(org.eclipse.emf.ecore.EObject res, java.lang.Object object)

Methods inherited from class org.eclipse.emf.cdo.transaction.CDODefaultTransactionHandler

committedTransaction, committingTransaction, detachingObject, rolledBackTransaction

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CDOAutoAttacher

public CDOAutoAttacher(CDOTransaction transaction)

Method Detail

getTransaction

public CDOTransaction getTransaction()

attachingObject

public void attachingObject(CDOTransaction transaction,
                            CDOObject object)

Description copied from interface: CDOTransactionHandler

Called by a CDOTransaction before an object is added. The implementor of this method is allowed to throw an unchecked exception that will propagate up to the operation that is about to add the object (thereby preventing the operation from successful completion).

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 the view you should use CDOAsyncTransactionHandler.

Specified by:

attachingObject in interface CDOTransactionHandler

Overrides:

attachingObject in class CDODefaultTransactionHandler

modifyingObject

public void modifyingObject(CDOTransaction transaction,
                            CDOObject object,
                            CDOFeatureDelta featureChange)

Description copied from interface: CDOTransactionHandler

Called by a CDOTransaction 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 the view you should use CDOAsyncTransactionHandler.

Specified by:

modifyingObject in interface CDOTransactionHandler

Overrides:

modifyingObject in class CDODefaultTransactionHandler

persist

protected void persist(org.eclipse.emf.ecore.EObject res,
                       java.lang.Object object)