com.basho.riak.client.cap.ConflictResolver Maven / Gradle / Ivy

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/*
 * This file is provided to you 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.basho.riak.client.cap;

import java.util.Collection;

/**
 * Implement to encode your conflict resolution strategy when faced with sibling values.
 * 
 * @author russell
 */
public interface ConflictResolver {

    /**
     * Applies encoded logic to produce a single value from a Collection of sibling values.
     * @param siblings
     * @return a single value of type T
     * @throws UnresolvedConflictException if it cannot determine a single value.
     */
    T resolve(final Collection siblings);

}