Java Development

[safycool]

How can I delete the persistent storage when the application gets uninstalled....

Because when i install the application with the same database name I want a fresh copy of perssistent storage

Thanks..

[tbilisoft]

Store instances of your persistable classes and in this case these objects will be removed when your app uninstalled.

[safycool]

the persistent  does not get deleted when the application is uninstalled....

When i install the application with the same persistent storage name... the old entries are retrieved which

were stored in persistent storage.

To get the new database I have to delete it.... or create a new database(i.e different new  persistent storage name) to get the new

persistent storage...

Thanks....

[bikas]

Try with reseting during uninstallation.

Somthing like:

javaloader -usb erase -f applicationName.cod

Regards

Bikas

[safycool]

1) I am using DesktopManager to uninstall the application

Also tried

2) deleting the application from Option-->Security Options...

But in both cases the persistent storage does not get deleted.

What in case of end user who uninstalls the application from desktop managers

Can you please explain how can i use the above command.....

But is it possible to delete the database via desktop manager...

Do I need to add something in the code..so that the database gets deleted when it is uninstalled....

Thanks...

[simon_hain]

tbilisoft is right, maybe you misunderstood him.

see
http://www.blackberry.com/knowledgecenterpublic/livelink.exe/fetch/2000/348583/800708/800647/How_To_...
for a more in-depth explaination.

if you use standard classes the store stays, if you use your own classes it goes.

[tbilisoft · Accepted solution]

If you are using Vector, String class instances to store data in Persistent Store it will remain after app is uninstalled.

But if you stored instances of your classes like:

class MyStorageBlock implements Persistable {

       private String myData;

       ...........

}

then all these objects will be removed when your app is uninstalled.

It does work for me and for my customers.

Message Edited by tbilisoft on 21-07-2009 01:06 PM

[safycool]

Yes I am storing Vector in the Persistent storage.

if I create a follwing class

public class MyVector extends Vector implements Persistable {

}

Will that data be deleted on uninstallation

[simon_hain]

yes

[tbilisoft]

If you store MyVector instance it will be deleted when your app is uninstalled.