public IntIterator rows(boolean val) {
if ( !(m_index instanceof BooleanIntSortedMap) )
throw new IllegalStateException();
BooleanIntSortedMap index = (BooleanIntSortedMap)m_index;
return index.valueRangeIterator(val, true, val, true);
}
/**
* @see prefuse.data.util.Index#rows(java.lang.Object)
*/