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/*******************************************************************************
* Copyright (c) 2005, 2013 Oracle. 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:
* Oracle - initial API and implementation
******************************************************************************/
package org.eclipse.jpt.common.utility.internal.predicate;
import org.eclipse.jpt.common.utility.predicate.Predicate;
/**
* This compound predicate will evaluate to <code>true</code> if <em>all</em>
* its wrapped predicates evaluate to <code>true</code>.
* If there are <em>no</em> wrapped
* predicates, this predicate will always evaluate to <code>true</code>.
* If there are wrapped predicates, this predicate will
* exhibit "short-circuit" behavior; i.e. if any wrapped predicate evaluates
* to <code>false</code>, no following wrapped predicates will be evaluated.
*
* @param <V> the type of objects to be evaluated by the predicate
* @see OR
* @see XOR
* @see NOT
*/
public class AND<V>
extends AbstractCompoundPredicate<V>
{
/**
* Construct a predicate that will evaluate to <code>true</code> if <em>all</em>
* the specified predicates evaluate to <code>true</code>.
*/
public AND(Predicate<? super V>... predicates) {
super(predicates);
}
public boolean evaluate(V variable) {
for (Predicate<? super V> predicate : this.predicates) {
if ( ! predicate.evaluate(variable)) {
return false;
}
}
return true;
}
@Override
protected String operatorString() {
return "AND"; //$NON-NLS-1$
}
}
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