/*
* Copyright 2011-2017 the original author or authors.
*
* 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.springframework.data.redis.connection;
import java.util.List;
import java.util.Set;
import org.springframework.data.redis.core.Cursor;
import org.springframework.data.redis.core.ScanOptions;
/**
* Set-specific commands supported by Redis.
*
* @author Costin Leau
* @author Christoph Strobl
* @author Mark Paluch
*/
public interface RedisSetCommands {
/**
* Add given {@code values} to set at {@code key}.
*
* @param key must not be {@literal null}.
* @param values
* @return
* @see <a href="http://redis.io/commands/sadd">Redis Documentation: SADD</a>
*/
Long sAdd(byte[] key, byte[]... values);
/**
* Remove given {@code values} from set at {@code key} and return the number of removed elements.
*
* @param key must not be {@literal null}.
* @param values
* @return
* @see <a href="http://redis.io/commands/srem">Redis Documentation: SREM</a>
*/
Long sRem(byte[] key, byte[]... values);
/**
* Remove and return a random member from set at {@code key}.
*
* @param key must not be {@literal null}.
* @return
* @see <a href="http://redis.io/commands/spop">Redis Documentation: SPOP</a>
*/
byte[] sPop(byte[] key);
/**
* Move {@code value} from {@code srcKey} to {@code destKey}
*
* @param srcKey must not be {@literal null}.
* @param destKey must not be {@literal null}.
* @param value
* @return
* @see <a href="http://redis.io/commands/smove">Redis Documentation: SMOVE</a>
*/
Boolean sMove(byte[] srcKey, byte[] destKey, byte[] value);
/**
* Get size of set at {@code key}.
*
* @param key must not be {@literal null}.
* @return
* @see <a href="http://redis.io/commands/scard">Redis Documentation: SCARD</a>
*/
Long sCard(byte[] key);
/**
* Check if set at {@code key} contains {@code value}.
*
* @param key must not be {@literal null}.
* @param value
* @return
* @see <a href="http://redis.io/commands/sismember">Redis Documentation: SISMEMBER</a>
*/
Boolean sIsMember(byte[] key, byte[] value);
/**
* Returns the members intersecting all given sets at {@code keys}.
*
* @param keys must not be {@literal null}.
* @return
* @see <a href="http://redis.io/commands/sinter">Redis Documentation: SINTER</a>
*/
Set<byte[]> sInter(byte[]... keys);
/**
* Intersect all given sets at {@code keys} and store result in {@code destKey}.
*
* @param destKey must not be {@literal null}.
* @param keys must not be {@literal null}.
* @return
* @see <a href="http://redis.io/commands/sinterstore">Redis Documentation: SINTERSTORE</a>
*/
Long sInterStore(byte[] destKey, byte[]... keys);
/**
* Union all sets at given {@code keys}.
*
* @param keys must not be {@literal null}.
* @return
* @see <a href="http://redis.io/commands/sunion">Redis Documentation: SUNION</a>
*/
Set<byte[]> sUnion(byte[]... keys);
/**
* Union all sets at given {@code keys} and store result in {@code destKey}.
*
* @param destKey must not be {@literal null}.
* @param keys must not be {@literal null}.
* @return
* @see <a href="http://redis.io/commands/sunionstore">Redis Documentation: SUNIONSTORE</a>
*/
Long sUnionStore(byte[] destKey, byte[]... keys);
/**
* Diff all sets for given {@code keys}.
*
* @param keys must not be {@literal null}.
* @return
* @see <a href="http://redis.io/commands/sdiff">Redis Documentation: SDIFF</a>
*/
Set<byte[]> sDiff(byte[]... keys);
/**
* Diff all sets for given {@code keys} and store result in {@code destKey}.
*
* @param destKey must not be {@literal null}.
* @param keys must not be {@literal null}.
* @return
* @see <a href="http://redis.io/commands/sdiffstore">Redis Documentation: SDIFFSTORE</a>
*/
Long sDiffStore(byte[] destKey, byte[]... keys);
/**
* Get all elements of set at {@code key}.
*
* @param key must not be {@literal null}.
* @return
* @see <a href="http://redis.io/commands/smembers">Redis Documentation: SMEMBERS</a>
*/
Set<byte[]> sMembers(byte[] key);
/**
* Get random element from set at {@code key}.
*
* @param key must not be {@literal null}.
* @return
* @see <a href="http://redis.io/commands/srandmember">Redis Documentation: SRANDMEMBER</a>
*/
byte[] sRandMember(byte[] key);
/**
* Get {@code count} random elements from set at {@code key}.
*
* @param key must not be {@literal null}.
* @param count
* @return
* @see <a href="http://redis.io/commands/srandmember">Redis Documentation: SRANDMEMBER</a>
*/
List<byte[]> sRandMember(byte[] key, long count);
/**
* Use a {@link Cursor} to iterate over elements in set at {@code key}.
*
* @param key must not be {@literal null}.
* @param options must not be {@literal null}.
* @return
* @since 1.4
* @see <a href="http://redis.io/commands/scan">Redis Documentation: SCAN</a>
*/
Cursor<byte[]> sScan(byte[] key, ScanOptions options);
}