com.liferay.portal.kernel.util.KeyValuePair.java Source code

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Here is the source code for com.liferay.portal.kernel.util.KeyValuePair.java

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/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 */

package com.liferay.portal.kernel.util;

import java.io.Serializable;

import java.util.Objects;

/**
 * @author Brian Wing Shun Chan
 */
public class KeyValuePair implements Comparable<KeyValuePair>, Serializable {

    public KeyValuePair() {
        this(null, null);
    }

    public KeyValuePair(String key, String value) {
        _key = key;
        _value = value;
    }

    @Override
    public int compareTo(KeyValuePair kvp) {
        return _key.compareTo(kvp.getKey());
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }

        if (!(obj instanceof KeyValuePair)) {
            return false;
        }

        KeyValuePair kvp = (KeyValuePair) obj;

        if (Objects.equals(_key, kvp._key)) {
            return true;
        }

        return false;
    }

    public String getKey() {
        return _key;
    }

    public String getValue() {
        return _value;
    }

    @Override
    public int hashCode() {
        if (_key != null) {
            return _key.hashCode();
        }

        return 0;
    }

    public void setKey(String key) {
        _key = key;
    }

    public void setValue(String value) {
        _value = value;
    }

    private String _key;
    private String _value;

}