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BiMap.java
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package soot.javaToJimple;
/*-
* #%L
* Soot - a J*va Optimization Framework
* %%
* Copyright (C) 2004 Jennifer Lhotak
* %%
* This program 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 program 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 General Lesser Public License for more details.
*
* You should have received a copy of the GNU General Lesser Public
* License along with this program. If not, see
* <http://www.gnu.org/licenses/lgpl-2.1.html>.
* #L%
*/
import java.util.HashMap;
public class BiMap {
HashMap<Object, Object> keyVal;
HashMap<Object, Object> valKey;
public BiMap() {
}
public void put(Object key, Object val) {
if (keyVal == null) {
keyVal = new HashMap<Object, Object>();
}
if (valKey == null) {
valKey = new HashMap<Object, Object>();
}
keyVal.put(key, val);
valKey.put(val, key);
}
public Object getKey(Object val) {
if (valKey == null) {
return null;
}
return valKey.get(val);
}
public Object getVal(Object key) {
if (keyVal == null) {
return null;
}
return keyVal.get(key);
}
public boolean containsKey(Object key) {
if (keyVal == null) {
return false;
}
return keyVal.containsKey(key);
}
public boolean containsVal(Object val) {
if (valKey == null) {
return false;
}
return valKey.containsKey(val);
}
}