com.spotify.folsom.GetResult.java Source code

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Here is the source code for com.spotify.folsom.GetResult.java

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/*
 * Copyright (c) 2014-2015 Spotify AB
 *
 * 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 com.spotify.folsom;

import com.google.common.base.Preconditions;

public class GetResult<V> {

    private final V value;
    private final long cas;

    private GetResult(final V value, final long cas) {
        this.value = Preconditions.checkNotNull(value);
        this.cas = cas;
    }

    public static <V> GetResult<V> success(final V value, final long cas) {
        Preconditions.checkNotNull(value, "value");
        return new GetResult<>(value, cas);
    }

    public V getValue() {
        return value;
    }

    public long getCas() {
        return cas;
    }

    // CHECKSTYLE:OFF
    @Override
    public boolean equals(Object o) {
        if (this == o)
            return true;
        if (o == null || getClass() != o.getClass())
            return false;

        GetResult<?> getResult = (GetResult<?>) o;

        if (cas != getResult.cas)
            return false;
        if (!value.equals(getResult.value))
            return false;

        return true;
    }

    @Override
    public int hashCode() {
        int result = value.hashCode();
        result = 31 * result + (int) (cas ^ (cas >>> 32));
        return result;
    }
    // CHECKSTYLE:ON
}