Pair.java

package net.ladenthin.llama;

import java.util.Objects;

/**
 * A generic immutable key-value pair.
 *
 * @param <K> the key type
 * @param <V> the value type
 */
public class Pair<K, V> {

	private final K key;
	private final V value;

	/**
	 * @param key   the key
	 * @param value the value
	 */
	public Pair(K key, V value) {
		this.key = key;
		this.value = value;
	}

	/**
	 * @return the key
	 */
	public K getKey() {
		return key;
	}

	/**
	 * @return the value
	 */
	public V getValue() {
		return value;
	}

	@Override
	public int hashCode() {
		return Objects.hash(key, value);
	}

	@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		Pair other = (Pair) obj;
		return Objects.equals(key, other.key) && Objects.equals(value, other.value);
	}

	@Override
	public String toString() {
		return "Pair [key=" + key + ", value=" + value + "]";
	}
	
	
	
	
}