Pair.java

/**
 * Copyright 2016 Yahoo Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.bookkeeper.mledger.util;

import com.google.common.base.Objects;

public class Pair<A, B> {
    public final A first;
    public final B second;

    public static <X, Y> Pair<X, Y> create(X x, Y y) {
        return new Pair<X, Y>(x, y);
    }

    public Pair(A first, B second) {
        this.first = first;
        this.second = second;
    }

    @Override
    public String toString() {
        return String.format("(%s,%s)", first, second);
    }

    @Override
    @SuppressWarnings("rawtypes")
    public boolean equals(Object obj) {
        if (obj instanceof Pair) {
            Pair other = (Pair) obj;
            return Objects.equal(first, other.first) && Objects.equal(second, other.second);
        }

        return false;
    }
}