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/*
 * Zorbage: an algebraic data hierarchy for use in numeric processing.
 *
 * Copyright (c) 2016-2021 Barry DeZonia All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 * 
 * Redistributions of source code must retain the above copyright notice, this list
 * of conditions and the following disclaimer.
 * 
 * Redistributions in binary form must reproduce the above copyright notice, this
 * list of conditions and the following disclaimer in the documentation and/or other
 * materials provided with the distribution.
 * 
 * Neither the name of the  nor the names of its contributors may
 * be used to endorse or promote products derived from this software without specific
 * prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL  BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 */
package nom.bdezonia.zorbage.tuple;

import nom.bdezonia.zorbage.accessor.AccessorA;
import nom.bdezonia.zorbage.accessor.AccessorB;
import nom.bdezonia.zorbage.misc.Hasher;

/**
 * 
 * @author Barry DeZonia
 *
 * @param 
 * @param 
 */
public class Tuple2
	implements
		AccessorA, AccessorB
{
	
	private A a;
	private B b;
	
	public Tuple2(A a, B b) {
		this.a = a;
		this.b = b;
	}
	
	@Override
	public A a() { return a; }

	@Override
	public void setA(A a) { this.a = a; }

	@Override
	public B b() { return b; }

	@Override
	public void setB(B b) { this.b = b; }

	@Override
	public int hashCode() {
		int v = 1;
		v = Hasher.PRIME * v + a.hashCode();
		v = Hasher.PRIME * v + b.hashCode();
		return v;
	}
	
	@Override
	public boolean equals(Object o) {
		if (this == o)
			return true;
		if (o instanceof Tuple2) {
			@SuppressWarnings("rawtypes")
			Tuple2 other = (Tuple2) o;
			return
					a.equals(other.a) &&
					b.equals(other.b);
		}
		return false;
	}
}