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/**
 * Copyright 2016 Nikita Koksharov
 *
 * 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.redisson.api;

import java.util.Set;

import org.reactivestreams.Publisher;

/**
 * Async set functions
 *
 * @author Nikita Koksharov
 *
 * @param  value
 */
public interface RSetReactive extends RCollectionReactive {

    /**
     * Removes and returns random element from set
     * in async mode
     *
     * @return value
     */
    Publisher removeRandom();

    /**
     * Returns random element from set
     * in async mode
     *
     * @return value
     */
    Publisher random();

    /**
     * Move a member from this set to the given destination set in async mode.
     *
     * @param destination the destination set
     * @param member the member to move
     * @return true if the element is moved, false if the element is not a
     * member of this set or no operation was performed
     */
    Publisher move(String destination, V member);

    /**
     * Union sets specified by name and write to current set.
     * If current set already exists, it is overwritten.
     *
     * @param names - name of sets
     * @return size of union
     */
    Publisher union(String... names);

    /**
     * Union sets specified by name with current set.
     * Without current set state change.
     *
     * @param names - name of sets
     * @return size of union
     */
    Publisher> readUnion(String... names);
    
    /**
     * Diff sets specified by name and write to current set.
     * If current set already exists, it is overwritten.
     *
     * @param names - name of sets
     * @return size of diff
     */
    Publisher diff(String... names);
    
    /**
     * Intersection sets specified by name and write to current set.
     * If current set already exists, it is overwritten.
     *
     * @param names - name of sets
     * @return size of intersection
     */
    Publisher intersection(String... names);

    /**
     * Intersection sets specified by name with current set.
     * Without current set state change.
     *
     * @param names - name of sets
     * @return values
     */
    Publisher> readIntersection(String... names);

}