Pair.java

package com.mogujie.tt.entity;

/**
 * Pair类
 * 
 * @author shuchen
 */
public class Pair<Key, Value> {

    private final Key key;
    private final Value value;

    /**
     * 
     */
    public Pair(Key key, Value value) {
        this.key = key;
        this.value = value;
    }

    public Key getKey() {
        return this.key;
    }

    public Value getValue() {
        return this.value;
    }

    @Override
    public String toString() {
        return key.toString() + ":" + value.toString();
    }

}