Am i doing something wrong here, when i set the descriptor to auto-retrieve
false and add the "retrieveReference" call, i get null for the property ...
simple example.... does this not look right? the call to
myobject.getCategories returns "null", but returns correctly if
auto-retrieve is set to true;
------------------------
StringBuffer sb = new StringBuffer();
PersistenceBroker broker = Settings.getBroker();
if(broker!=null){
Query query = new QueryByCriteria(MyClass.class, null);
try
{
Collection all = broker.getCollectionByQuery(query);
Iterator iter = all.iterator();
while (iter.hasNext())
{
MyClass myobject = (MyClass)iter.next();
broker.retrieveReference(myobject, "categories");
//*** help
sb.append("<br>" + myobject.toString());
sb.append("<br>" + myobject.getCategories() +
"<br>");
}
}
catch (PersistenceBrokerException pbex)
{
pbex.printStackTrace();
}
}
-------------------------
Thanks,
Rick
-----Original Message-----
From: Mahler Thomas [mailto:thomas.mahler@;itellium.com]
Sent: Thursday, November 07, 2002 7:06 AM
To: 'OJB Users List'
Subject: AW: [0.9.7] How do you get a collection when auto-retrieve is
fal se?
Hi Gavin,
use PersistenceBroker::retrieveReference
/**
* retrieve a single reference- or collection attribute
* of a persistent instance.
* @param pInstance the persistent instance
* @param pAttributeName the name of the Attribute to load
*/
public void retrieveReference(Object pInstance, String
pAttributeName) throws PersistenceBrokerException;
cheers,
Thomas
> -----Urspr�ngliche Nachricht-----
> Von: Gavin, Rick [mailto:RGavin@;vidyah.com]
> Gesendet: Donnerstag, 7. November 2002 15:50
> An: [EMAIL PROTECTED]
> Betreff: [0.9.7] How do you get a collection when auto-retrieve is
> false?
>
>
> If you have queried for an entity with auto-retrieve off in
> the descriptor..
> (most of the time the data isn't needed) how do you tell it
> pragmatically
> to load the collection into the object? Sorry if its a dumb
> question, I
> didn't see it in the docs.
>
> --------------------------------------------------------------
> -----------
> <collection-descriptor
> name="categories"
> element-class-ref="Category"
> auto-retrieve="false"
> auto-update="false"
> auto-delete="false"
> >
> <inverse-foreignkey field-id-ref="2"/>
> </collection-descriptor>
> --------------------------------------------------------------
> ------------
>
> Thanks for any help,
>
> Rick
>
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