source: java/main/src/main/java/com/framsticks/util/lang/Pair.java @ 193

package com.framsticks.util.lang;

/**
 * @author Piotr Sniegowski
 */
public class Pair<T1, T2> {
        public final T1 first;
        public final T2 second;

        public Pair(T1 first, T2 second) {
                this.first = first;
                this.second = second;
        }

        @Override
        public String toString() {
                return Strings.toStringNullProof(first) + " : " + Strings.toStringNullProof(second);
        }

        @Override
        public boolean equals(Object obj) {
                if (!(obj instanceof Pair)) {
                        return false;
                }
                Pair<?, ?> p = (Pair<?, ?>) obj;
                return first.equals(p.first) && second.equals(p.second);
        }

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

        public static <U1, U2> Pair<U1, U2> make(U1 first, U2 second) {
                return new Pair<U1, U2>(first, second);
        }

}