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package jrummikub.util;
/**
* A pair of objects
*
* @param <T1>
* Type of first component
* @param <T2>
* Type of second component
*/
public class Pair<T1, T2> {
private final T1 first;
private final T2 second;
/**
* Create a new pair from two values
*
* @param first
* the first pair component
* @param second
* the second pair component
*/
public Pair(T1 first, T2 second) {
this.first = first;
this.second = second;
}
/**
* Extract the first component of a pair
*
* @return the first pair component
*/
public T1 getFirst() {
return first;
}
/**
* Extract the second component of a pair
*
* @return the second pair component
*/
public T2 getSecond() {
return second;
}
@Override
public String toString() {
return "Pair [first=" + first + ", second=" + second + "]";
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((first == null) ? 0 : first.hashCode());
result = prime * result + ((second == null) ? 0 : second.hashCode());
return result;
}
@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;
if (first == null) {
if (other.first != null)
return false;
} else if (!first.equals(other.first))
return false;
if (second == null) {
if (other.second != null)
return false;
} else if (!second.equals(other.second))
return false;
return true;
}
}
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