Pair.java

/*
 * Pair.java
 *
 * Copyright (c) 2002-2016 Alexei Drummond, Andrew Rambaut and Marc Suchard
 *
 * This file is part of BEAST.
 * See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership and licensing.
 *
 * BEAST 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
 * of the License, or (at your option) any later version.
 *
 *  BEAST 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with BEAST; if not, write to the
 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
 * Boston, MA  02110-1301  USA
 */

package dr.util;

/**
 * Date: 15/06/2016
 * Time: 17:57
 *
 * @author rambaut
 */
public class Pair<A, B> {
    public final A fst;
    public final B snd;

    public Pair(A var1, B var2) {
        this.fst = var1;
        this.snd = var2;
    }

    public String toString() {
        return "Pair[" + this.fst + "," + this.snd + "]";
    }

    private boolean equals(Object var0, Object var1) {
        return var0 == null && var1 == null || var0 != null && var0.equals(var1);
    }

    public boolean equals(Object var1) {
        return var1 instanceof Pair && equals(this.fst, ((Pair) var1).fst) && equals(this.snd, ((Pair) var1).snd);
    }

    public int hashCode() {
        return this.fst == null ? (this.snd == null ? 0 : this.snd.hashCode() + 1) : (this.snd == null ? this.fst.hashCode() + 2 : this.fst.hashCode() * 17 + this.snd.hashCode());
    }
}