/*
* FindBugs - Find Bugs in Java programs
* Copyright (C) 2003-2007 University of Maryland
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package edu.umd.cs.findbugs.util;
import java.util.HashMap;
import java.util.Map;
/**
* @author pugh
*/
public class TripleKeyHashMap<K1, K2, K3, V> {
Map<K1, DualKeyHashMap<K2, K3, V>> map = new HashMap<K1, DualKeyHashMap<K2, K3, V>>();
public V get(K1 k1, K2 k2, K3 k3) {
DualKeyHashMap<K2, K3, V> m = map.get(k1);
if (m == null)
return null;
return m.get(k2, k3);
}
public V put(K1 k1, K2 k2, K3 k3, V v) {
DualKeyHashMap<K2, K3, V> m = map.get(k1);
if (m == null) {
m = new DualKeyHashMap<K2, K3, V>();
map.put(k1, m);
}
return m.put(k2, k3, v);
}
}