WALA/com.ibm.wala.util/src/com/ibm/wala/util/collections/Filtersection.java

40 lines
1.1 KiB
Java

/*******************************************************************************
* Copyright (c) 2002 - 2006 IBM Corporation.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package com.ibm.wala.util.collections;
import com.ibm.wala.util.Predicate;
/**
* intersection of two filters
*/
public class Filtersection<T> extends Predicate<T> {
final private Predicate<T> a;
final private Predicate<T> b;
public Filtersection(Predicate<T> a, Predicate<T> b) {
this.a = a;
this.b = b;
if (a == null) {
throw new IllegalArgumentException("null a");
}
if (b == null) {
throw new IllegalArgumentException("null b");
}
}
@Override
public boolean test(T o) {
return a.test(o) && b.test(o);
}
}