/*****************************************************************************
 * Copyright (C) Codehaus.org                                                *
 * ------------------------------------------------------------------------- *
 * Licensed under the Apache License, Version 2.0 (the "License");           *
 * you may not use this file except in compliance with the License.          *
 * You may obtain a copy of the License at                                   *
 *                                                                           *
 * http://www.apache.org/licenses/LICENSE-2.0                                *
 *                                                                           *
 * Unless required by applicable law or agreed to in writing, software       *
 * distributed under the License is distributed on an "AS IS" BASIS,         *
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  *
 * See the License for the specific language governing permissions and       *
 * limitations under the License.                                            *
 *****************************************************************************/
package net.ion.rosetta.functors;

import net.ion.rosetta.util.Objects;

/**
 * Immutable data holder for 3 values.
 * 
 * @author Ben Yu
 */
public class Tuple3<A, B, C> extends Pair<A, B> {

	public final C c;

	public Tuple3(A a, B b, C c) {
		super(a, b);
		this.c = c;
	}

	boolean equals(Tuple3<?, ?, ?> other) {
		return super.equals(other) && Objects.equals(c, other.c);
	}

	@Override
	public boolean equals(Object obj) {
		if (obj instanceof Tuple3<?, ?, ?>) {
			return equals((Tuple3<?, ?, ?>) obj);
		}
		return false;
	}

	@Override
	public int hashCode() {
		return super.hashCode() * 31 + Objects.hashCode(c);
	}

	@Override
	public String toString() {
		return "(" + a + ", " + b + ", " + c + ")";
	}
}