public static InternalView openViewWithLockArea(
InternalSession session,
InternalLockManager lockManager,
CDOBranch viewedBranch,
String lockAreaID) {
LockArea lockArea;
InternalView view;
try {
lockArea = lockManager.getLockArea(lockAreaID);
// If we get here, the lockArea already exists.
view =
(InternalView)
lockManager.openView(session, InternalSession.TEMP_VIEW_ID, true, lockAreaID);
} catch (LockAreaNotFoundException e) {
// If we get here, the lockArea does not yet exist, so we open
// a view without a lockArea first, then create a lockArea with the given ID,
// and associate it with the view.
view = session.openView(InternalSession.TEMP_VIEW_ID, viewedBranch.getHead());
lockArea = lockManager.createLockArea(view, lockAreaID);
view.setDurableLockingID(lockAreaID);
}
CheckUtil.checkNull(lockAreaID, "lockAreaID");
CheckUtil.checkNull(lockArea, "lockArea");
CheckUtil.checkState(
lockAreaID.equals(lockArea.getDurableLockingID()), "lockAreaID has incorrect value");
return view;
}
