/*
* 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.core;
import java.util.Collection;
import java.util.List;
import java.util.Set;
/**
* Redis set specific operations.
*
* @author Costin Leau
* @author Christoph Strobl
* @author Mark Paluch
*/
public interface SetOperations<K, V> {
/**
* 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 add(K key, V... 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 remove(K key, Object... 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>
*/
V pop(K key);
/**
* Move {@code value} from {@code key} to {@code destKey}
*
* @param key must not be {@literal null}.
* @param value
* @param destKey must not be {@literal null}.
* @return
* @see <a href="http://redis.io/commands/smove">Redis Documentation: SMOVE</a>
*/
Boolean move(K key, V value, K destKey);
/**
* 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 size(K key);
/**
* Check if set at {@code key} contains {@code value}.
*
* @param key must not be {@literal null}.
* @param o
* @return
* @see <a href="http://redis.io/commands/sismember">Redis Documentation: SISMEMBER</a>
*/
Boolean isMember(K key, Object o);
/**
* Returns the members intersecting all given sets at {@code key} and {@code otherKey}.
*
* @param key must not be {@literal null}.
* @param otherKey must not be {@literal null}.
* @return
* @see <a href="http://redis.io/commands/sinter">Redis Documentation: SINTER</a>
*/
Set<V> intersect(K key, K otherKey);
/**
* Returns the members intersecting all given sets at {@code key} and {@code otherKeys}.
*
* @param key must not be {@literal null}.
* @param otherKeys must not be {@literal null}.
* @return
* @see <a href="http://redis.io/commands/sinter">Redis Documentation: SINTER</a>
*/
Set<V> intersect(K key, Collection<K> otherKeys);
/**
* Intersect all given sets at {@code key} and {@code otherKey} and store result in {@code destKey}.
*
* @param key must not be {@literal null}.
* @param otherKey must not be {@literal null}.
* @param destKey must not be {@literal null}.
* @return
* @see <a href="http://redis.io/commands/sinterstore">Redis Documentation: SINTERSTORE</a>
*/
Long intersectAndStore(K key, K otherKey, K destKey);
/**
* Intersect all given sets at {@code key} and {@code otherKeys} and store result in {@code destKey}.
*
* @param key must not be {@literal null}.
* @param otherKeys must not be {@literal null}.
* @param destKey must not be {@literal null}.
* @return
* @see <a href="http://redis.io/commands/sinterstore">Redis Documentation: SINTERSTORE</a>
*/
Long intersectAndStore(K key, Collection<K> otherKeys, K destKey);
/**
* Union all sets at given {@code keys} and {@code otherKey}.
*
* @param key must not be {@literal null}.
* @param otherKey must not be {@literal null}.
* @return
* @see <a href="http://redis.io/commands/sunion">Redis Documentation: SUNION</a>
*/
Set<V> union(K key, K otherKey);
/**
* Union all sets at given {@code keys} and {@code otherKeys}.
*
* @param key must not be {@literal null}.
* @param otherKeys must not be {@literal null}.
* @return
* @see <a href="http://redis.io/commands/sunion">Redis Documentation: SUNION</a>
*/
Set<V> union(K key, Collection<K> otherKeys);
/**
* Union all sets at given {@code key} and {@code otherKey} and store result in {@code destKey}.
*
* @param key must not be {@literal null}.
* @param otherKey must not be {@literal null}.
* @param destKey must not be {@literal null}.
* @return
* @see <a href="http://redis.io/commands/sunionstore">Redis Documentation: SUNIONSTORE</a>
*/
Long unionAndStore(K key, K otherKey, K destKey);
/**
* Union all sets at given {@code key} and {@code otherKeys} and store result in {@code destKey}.
*
* @param key must not be {@literal null}.
* @param otherKeys must not be {@literal null}.
* @param destKey must not be {@literal null}.
* @return
* @see <a href="http://redis.io/commands/sunionstore">Redis Documentation: SUNIONSTORE</a>
*/
Long unionAndStore(K key, Collection<K> otherKeys, K destKey);
/**
* Diff all sets for given {@code key} and {@code otherKey}.
*
* @param key must not be {@literal null}.
* @param otherKey must not be {@literal null}.
* @return
* @see <a href="http://redis.io/commands/sdiff">Redis Documentation: SDIFF</a>
*/
Set<V> difference(K key, K otherKey);
/**
* Diff all sets for given {@code key} and {@code otherKeys}.
*
* @param key must not be {@literal null}.
* @param otherKeys must not be {@literal null}.
* @return
* @see <a href="http://redis.io/commands/sdiff">Redis Documentation: SDIFF</a>
*/
Set<V> difference(K key, Collection<K> otherKeys);
/**
* Diff all sets for given {@code key} and {@code otherKey} and store result in {@code destKey}.
*
* @param key must not be {@literal null}.
* @param otherKey must not be {@literal null}.
* @param destKey must not be {@literal null}.
* @return
* @see <a href="http://redis.io/commands/sdiffstore">Redis Documentation: SDIFFSTORE</a>
*/
Long differenceAndStore(K key, K otherKey, K destKey);
/**
* Diff all sets for given {@code key} and {@code otherKeys} and store result in {@code destKey}.
*
* @param key must not be {@literal null}.
* @param otherKeys must not be {@literal null}.
* @param destKey must not be {@literal null}.
* @return
* @see <a href="http://redis.io/commands/sdiffstore">Redis Documentation: SDIFFSTORE</a>
*/
Long differenceAndStore(K key, Collection<K> otherKeys, K destKey);
/**
* 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<V> members(K 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>
*/
V randomMember(K key);
/**
* Get {@code count} distinct 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>
*/
Set<V> distinctRandomMembers(K key, long count);
/**
* 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<V> randomMembers(K key, long count);
/**
* Iterate over elements in set at {@code key}. <br />
* <strong>Important:</strong> Call {@link Cursor#close()} when done to avoid resource leak.
*
* @param key
* @param options
* @return
* @since 1.4
*/
Cursor<V> scan(K key, ScanOptions options);
RedisOperations<K, V> getOperations();
}