objectbridge-developers

[OJB-developers] Refresh/update an object

[<tr...@th...>]

Is there any method in place for doing this?  Just wondering for jdo, below is what should happen.  

	/** Refresh the state of the instance from the data store.
	 *
	 * <P>In an optimistic transaction, the state of instances in the cache
	 * might not match the state in the data store.  This method is used to
	 * reload the state of the instance from the data store so that a subsequent
	 * commit is more likely to succeed.
	 * <P>Outside a transaction, this method will refresh nontransactional state.
	 * @param pc the instance to refresh.
	 */


Travis 

Re: [OJB-developers] Refresh/update an object

[Thomas M. <tho...@ho...>]

Hi Travis,


Say you have a persistent object instance.
To perform a refreh of this object use

PersistenceBroker broker = PersistenceBroker.createPersistenceBroker();
Identity oid = new Identity(instance);

broker.invalidate(oid);
instance = broker.getObjectByIdentity(oid)


HTH,

Thomas

tr...@th... wrote:

> Is there any method in place for doing this?  Just wondering for jdo, below is what should happen.  
> 
> 	/** Refresh the state of the instance from the data store.
> 	 *
> 	 * <P>In an optimistic transaction, the state of instances in the cache
> 	 * might not match the state in the data store.  This method is used to
> 	 * reload the state of the instance from the data store so that a subsequent
> 	 * commit is more likely to succeed.
> 	 * <P>Outside a transaction, this method will refresh nontransactional state.
> 	 * @param pc the instance to refresh.
> 	 */
> 
> 
> Travis 
> 
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