org.opencastproject.util.data.Tuple Maven / Gradle / Ivy
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* Licensed to The Apereo Foundation under one or more contributor license
* agreements. See the NOTICE file distributed with this work for additional
* information regarding copyright ownership.
*
*
* The Apereo Foundation licenses this file to you under the Educational
* Community 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://opensource.org/licenses/ecl2.txt
*
* 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 org.opencastproject.util.data;
import static org.opencastproject.util.EqualsUtil.eqClasses;
import java.util.Objects;
/** A pair. */
public final class Tuple {
private final A a;
private final B b;
public Tuple(A a, B b) {
this.a = a;
this.b = b;
}
/** Get the first element. */
public A getA() {
return a;
}
/** Get the second element. */
public B getB() {
return b;
}
@Override
public boolean equals(Object that) {
if (this == that)
return true;
if (!eqClasses(this, that))
return false;
Tuple thatc = (Tuple) that;
return a.equals(thatc.a) && b.equals(thatc.b);
}
@Override
public int hashCode() {
return Objects.hash(a, b);
}
/** Create a new tuple with two elements a and b. */
public static Tuple tuple(A a, B b) {
return new Tuple(a, b);
}
@Override
public String toString() {
return "(" + a + "," + b + ")";
}
}