how distinguish backup from primary

edit

I'm working with the example code from

http://wiki.gigaspaces.com/wiki/displ...

specifically, the section titled "Restart a running PU via the Admin API".

The code snippet is:

if( puInstances[i].getSpaceInstance().getMode() == SpaceMode.BACKUP ) {

 restartPUInstance(puInstances[i]);

}

Unfortunately, the "getMode()" method is returning neither SpaceMode.BACKUP

nor SpaceMode.PRIMARY.

How can I identify which PU instance is primary and which is backup?

Thank you.

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