[RLord321]

If my application, which uses persistent store, gets uninstalled on a blackberry, what happens to the persistent store? Does it remain there forever or does it get removed automatically?

[bemshaswing]

When you remove an application from your device, associated persistent storages are removed as well

[genvej]

Originally Posted by bemshaswing

When you remove an application from your device, associated persistent storages are removed as well

hmmm... i have experienced otherwise and i have to dissagree with you.

A store is associated with a key which is lasting until you destroy it.

[bemshaswing]

the specs say that's the case and I've seen that whenever I delete an application off the device the persistent storages always go with it but I can't be 100% certain though

[genvej]

Originally Posted by bemshaswing

the specs say that's the case and I've seen that whenever I delete an application off the device the persistent storages always go with it but I can't be 100% certain though

I just found some specs on it too which agrees with you. however ive created a custom database (of hashmaps) which exists even if i pull off the application that initially created it

[bemshaswing]

yeah, I'm never certain of anything really, I've been developing in this env for a while now. however, the only time I've ever seen, in my own testing, a database persisting past this supposed deletion is when I try to OTA install an update to an application while the application already exists. Theoretically the application is deleted, the OS rebooted, the application is loaded and placed into the JRE. Theoretically when said application is deleted, so goes it's persistent storage but for some reason OTA updates allow you to keep them. dunno bout anything else though

[georg]

You must differentiate between J2ME development and BlackBerry development. The pure J2ME delete your storage if you uninstall your app while the BlackBerry generic storage persists if you don't take care of it.

[genvej]

Originally Posted by georg

You must differentiate between J2ME development and BlackBerry development. The pure J2ME delete your storage if you uninstall your app while the BlackBerry generic storage persists if you don't take care of it.

that explains it... thx

[RLord321]

Well, how can your application which uses the BlackBerry persistence, not RMS, take care of it if you uninstall it though the applications screen? I don't think there is an uninstall event that it can listen to... There must be a way..otherwise everyone will have orphan stores...

[Rose]

Originally Posted by georg

You must differentiate between J2ME development and BlackBerry development. The pure J2ME delete your storage if you uninstall your app while the BlackBerry generic storage persists if you don't take care of it.

If your view is right means just think of a situation we installed 10 applications and all the 10 apps seems to use their own store. After some days i uninstall all the apps and install some new applications which also uses their own store.

If the previous stores are all alive means wont it cause any problems ?

[genvej]

Originally Posted by Rose

If your view is right means just think of a situation we installed 10 applications and all the 10 apps seems to use their own store. After some days i uninstall all the apps and install some new applications which also uses their own store.

If the previous stores are all alive means wont it cause any problems ?

that really depends on for what purpose you use ure stores.

If you want to get rid of your stores you can just run the destroy method on each store prior to installation

[Rose]

Originally Posted by genvej

that really depends on for what purpose you use ure stores.

If you want to get rid of your stores you can just run the destroy method on each store prior to installation

Can you explain me in detail how we can delete all the stores in the device without their keys. Is there any way ?

[genvej]

Originally Posted by Rose

Can you explain me in detail how we can delete all the stores in the device without their keys. Is there any way ?

Nope... unless u nuke ur telephone from BEWS of course (HAVE IN MIND THAT YOU WILL LOOSE EVERYTHING EVER MADE ON THE PHONE!)

But you should have your key somewhere. Its the one that was used when you created the store

[RLord321]

I would hate to have an application eat up all of my free space with their store (with a key that only they know!) and then when you delete the application, it remains there forever. That would suck!