Java Development

[gsk_56]

Hi,

I am using JDE 1.5 MDS simulator, and iam storing one vector object in persistent store, immediately i can able get this stored object at this time so it is working fine. But Once If i close the simulator and start it again, then i am unable to get that stored object.  Iam using below code

public static PersistentObject  _store = PersistentStore.getPersistentObject(0x2f4b60db4f02308bL);    
Vecor vectorObject = new Vector();
ComponentVO info = new ComponentVO();  //This is vo
vectorObject.addElement(info);
synchronized (_store){
            _store.setContents(vectorObject);
            _store.commit();
        }
//for get the stored object
public Vector readVoFromPersistentStore() {
        synchronized (_store){
            return (Vector)_store.getContents();
        }
    }    

Please provide your solution for this.  Advanced Thanks.

Regards

Sunil.G

[simon_hain]

do you call PersistentStore.getPersistentObject() when reading?

[gsk_56]

Yes,  I have mentioned 'PersistentStore.getPersistentObject()'  this you can find in my first post having first line in code. That is

public static PersistentObject  _store = PersistentStore.getPersistentObject(0x2f4b60db4f02308bL); 

iam getting values also from store,  but I am unable to get the same when i trying to get the values after simulator restart. Againg i have to store the object in persistentObject then only i can retrieve.

 

[peter_strange]

Are you starting the Simulator separately, or under control of the JDE?  What level JDE are you using?  You say 1.5, but I suspect you mean 4.5?

I've not looked seriously at this, but I think I have found that if I start the Sim from the JDE, typically after making a few changes in my application, then it will restart the simulator and delete Objects associated with my app.  I guess it does this on the grounds that what I have really done, is delete my app, change it, then reinstall and restart the device.  I think this is probably reasonable, though a little annoying if all I've done is change a Screen.....