/* Copyright (C) 2003 Univ. of Massachusetts Amherst, Computer Science Dept.
This file is part of "MALLET" (MAchine Learning for LanguagE Toolkit).
http://www.cs.umass.edu/~mccallum/mallet
This software is provided under the terms of the Common Public License,
version 1.0, as published by http://www.opensource.org. For further
information, see the file `LICENSE' included with this distribution. */
package cc.mallet.grmm.util;
import gnu.trove.THashMap;
import gnu.trove.TIntObjectHashMap;
import gnu.trove.TObjectProcedure;
import java.util.Iterator;
import java.util.List;
import java.util.ArrayList;
/**
* A map that maps (int, int) --> object, where each (int,int) key
* is allowed to map to multiple objects.
*
* Created: Dec 14, 2005
*
* @author <A HREF="mailto:casutton@cs.umass.edu>casutton@cs.umass.edu</A>
* @version $Id: CSIntInt2ObjectMultiMap.java,v 1.1 2007/10/22 21:37:58 mccallum Exp $
*/
public class CSIntInt2ObjectMultiMap {
private TIntObjectHashMap backing = new TIntObjectHashMap ();
public void add (int key1, int key2, Object value)
{
TIntObjectHashMap inner = (TIntObjectHashMap) backing.get (key1);
if (inner == null) {
inner = new TIntObjectHashMap ();
backing.put (key1, inner);
}
List lst = (List) inner.get (key2);
if (lst == null) {
lst = new ArrayList ();
inner. put (key2, lst);
}
lst.add (value);
}
public List get (int key1, int key2)
{
TIntObjectHashMap inner = (TIntObjectHashMap) backing.get (key1);
if (inner == null) {
return null;
} else {
return (List) inner.get (key2);
}
}
public int size ()
{
final int[] N = new int[]{0};
backing.forEachValue (new TObjectProcedure() {
public boolean execute (Object object)
{
TIntObjectHashMap inner = (TIntObjectHashMap) object;
N[0] += inner.size ();
return true;
}
});
return N[0];
}
public void clear () { backing.clear (); }
// not yet serializable
}