net.e6tech.elements.common.util.datastructure.Pair Maven / Gradle / Ivy
/*
* Copyright 2017 Futeh Kao
*
* 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.e6tech.elements.common.util.datastructure;
import java.util.Objects;
/**
* Created by futeh.
*/
public class Pair {
private K key;
private V value;
public Pair(K key, V value) {
this.key = key;
this.value = value;
}
public K key() { return key; }
public V value() { return value; }
@Override
public int hashCode() {
return Objects.hash(key, value);
}
@Override
public boolean equals(Object o) {
if (this == o)
return true;
if (o instanceof Pair) {
Pair pair = (Pair) o;
if (key != null ? !key.equals(pair.key) : pair.key != null)
return false;
return !(value != null ? !value.equals(pair.value) : pair.value != null);
}
return false;
}
}