public final boolean isEmptyWriteSet() {
if (readOnly) return true;
lock.lock();
try {
final Iterator<ILocalBTreeView> itr = indices.values().iterator();
while (itr.hasNext()) {
final IsolatedFusedView ndx = (IsolatedFusedView) itr.next();
if (!ndx.isEmptyWriteSet()) {
// At least one isolated index was written on.
return false;
}
}
return true;
} finally {
lock.unlock();
}
}
