/** * * Copyright (c) 2006-2017, Speedment, Inc. All Rights Reserved. * * 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 com.speedment.common.tuple; /** * This interface defines a generic Tuple of any order that can hold null * values. A Tuple is type safe, immutable and thread safe. For pure non-null * value elements see {@link Tuple} * This {@link Tuple } has a degree of 2 * * @param <T0> type of element 0 * @param <T1> type of element 1 * * @author Per Minborg */ public interface Tuple2<T0, T1> extends Tuple { T0 get0(); T1 get1(); @Override default int degree() { return 2; } default Object get(int index) { switch (index) { case 0 : return get0(); case 1 : return get1(); default : throw new IllegalArgumentException(String.format("Index %d is outside bounds of tuple of degree %s", index, degree() )); } } }