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org.opentripplanner.util.CompositeComparator Maven / Gradle / Ivy

package org.opentripplanner.util;

import java.util.Comparator;

/**
 * This class take a list of comparators and turn them into one, iterating over the vector passes in
 * at construction time.
 * 

* This class implement the composite design pattern. *

* THIS CLASS IS THREAD-SAFE */ public class CompositeComparator implements Comparator { private final Comparator[] compareVector; @SafeVarargs public CompositeComparator(Comparator... compareVector) { this.compareVector = compareVector; } @Override public int compare(T o1, T o2) { int v; for (Comparator c : compareVector) { v = c.compare(o1, o2); if (v != 0) { return v; } } return 0; } }





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