/* Soot - a J*va Optimization Framework
* Copyright (C) 2005 Ondrej Lhotak
*
* 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 soot.util;
/** A numberer that associates each number with the corresponding Long object.
*/
public class IntegerNumberer implements Numberer {
/** Tells the numberer that a new object needs to be assigned a number. */
public void add( Object o ) {}
/** Should return the number that was assigned to object o that was
* previously passed as an argument to add().
*/
public long get( Object o ) {
if( o == null ) return 0;
return ((Long) o).longValue();
}
/** Should return the object that was assigned the number number. */
public Object get( long number ) {
if( number == 0 ) return null;
return new Long(number);
}
/** Should return the number of objects that have been assigned numbers. */
public int size() {
throw new RuntimeException( "IntegerNumberer does not implement the size() method." );
}
}