/*******************************************************************************
* 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 java.util.Collection;
import com.ibm.wala.util.Predicate;
/**
* A filter defined by set membership
*/
public class CollectionFilter<T> extends Predicate<T> {
private final Collection<? extends T> S;
public CollectionFilter(Collection<? extends T> S) {
if (S == null) {
throw new IllegalArgumentException("null S");
}
this.S = S;
}
/*
* @see com.ibm.wala.util.Filter#accepts(java.lang.Object)
*/
@Override public boolean test(T o) {
return S.contains(o);
}
}