/*
 * Copyright (c) 2013. wyouflf (wyouflf@gmail.com)
 *
 * 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 org.xutils.common.util;

public class KeyValue {
    public final String key;
    public final Object value;

    public KeyValue(String key, Object value) {
        this.key = key;
        this.value = value;
    }

    public String getKey() {
        return key;
    }

    public Object getValue() {
        return value;
    }

    /**
     * 获取value的字符串值, 为null时返回空字符串
     */
    public String getValueStrOrEmpty() {
        return value == null ? "" : value.toString();
    }

    /**
     * 获取value的字符串值, 为null时返回null
     */
    public String getValueStrOrNull() {
        return value == null ? null : value.toString();
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;

        KeyValue keyValue = (KeyValue) o;

        return key == null ? keyValue.key == null : key.equals(keyValue.key);

    }

    @Override
    public int hashCode() {
        return key != null ? key.hashCode() : 0;
    }

    @Override
    public String toString() {
        return "KeyValue{" + "key='" + key + '\'' + ", value=" + value + '}';
    }
}
