com.sap.it.commons.data.Triple Maven / Gradle / Ivy

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package com.sap.it.commons.data;

import java.io.Serializable;

import com.sap.it.commons.lang.Equals;
import com.sap.it.commons.lang.Hash;

public class Triple implements Serializable {
    private static final long serialVersionUID = 8719382431393826469L;

    private final T first;
    private final U second;
    private final V third;

    public Triple(T a, U b, V c) {
        first = a;
        second = b;
        third = c;
    }

    public T getFirst() {
        return first;
    }

    public U getSecond() {
        return second;
    }

    public V getThird() {
        return third;
    }

    @Override
    public int hashCode() {
        return Hash.hash(first, second, third);
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }

        if (!(obj instanceof Triple)) {
            return false;
        }

        @SuppressWarnings("unchecked")
        Triple other = (Triple) obj;

        return Equals.equals(first, other.first) && //
                Equals.equals(second, other.second) && //
                Equals.equals(third, other.third);
    }

    @Override
    public String toString() {
        return "[" + first + ", " + second + ", " + third + "]"; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
    }

    public static  Triple create(T a, U b, V c) {
        return new Triple(a, b, c);
    }

    @SuppressWarnings("unchecked")
    public static final  Triple nullTriple() {
        return (Triple) NULL_TRIPLE;
    }

    @SuppressWarnings("rawtypes")
    public static final Triple NULL_TRIPLE = new Triple(null, null, null);
}