org.whispersystems.libsignal.util.Pair Maven / Gradle / Ivy
/**
* Copyright (C) 2014-2016 Open Whisper Systems
*
* Licensed according to the LICENSE file in this repository.
*/
package org.whispersystems.libsignal.util;
public class Pair {
private final T1 v1;
private final T2 v2;
public Pair(T1 v1, T2 v2) {
this.v1 = v1;
this.v2 = v2;
}
public T1 first(){
return v1;
}
public T2 second(){
return v2;
}
public boolean equals(Object o) {
return o instanceof Pair &&
equal(((Pair) o).first(), first()) &&
equal(((Pair) o).second(), second());
}
public int hashCode() {
return first().hashCode() ^ second().hashCode();
}
private boolean equal(Object first, Object second) {
if (first == null && second == null) return true;
if (first == null || second == null) return false;
return first.equals(second);
}
}