+ add pop to set operations

spring-data-redis/src/main/java/org/springframework/data/keyvalue/redis/core/BoundSetOperations.java

@@ -48,5 +48,7 @@ public interface BoundSetOperations<K, V> extends KeyBound<K> {
 
 	Boolean remove(Object o);
 
+	V pop();
+
 	Long size();
 }

spring-data-redis/src/main/java/org/springframework/data/keyvalue/redis/core/DefaultBoundSetOperations.java

@@ -85,6 +85,11 @@ class DefaultBoundSetOperations<K, V> extends DefaultKeyBound<K> implements Boun
 		return ops.remove(getKey(), o);
 	}
 
+	@Override
+	public V pop() {
+		return ops.pop(getKey());
+	}
+
 	@Override
 	public Long size() {
 		return ops.size(getKey());

spring-data-redis/src/main/java/org/springframework/data/keyvalue/redis/core/RedisTemplate.java

@@ -1053,6 +1053,16 @@ public class RedisTemplate<K, V> extends RedisAccessor implements RedisOperation
 			}, true);
 		}
 
+		@Override
+		public V pop(K key) {
+			return execute(new ValueDeserializingRedisCallback(key) {
+				@Override
+				protected byte[] inRedis(byte[] rawKey, RedisConnection connection) {
+					return connection.sPop(rawKey);
+				}
+			}, true);
+		}
+
 		@Override
 		public Long size(K key) {
 			final byte[] rawKey = rawKey(key);

spring-data-redis/src/main/java/org/springframework/data/keyvalue/redis/core/SetOperations.java

@@ -46,6 +46,8 @@ public interface SetOperations<K, V> {
 
 	Boolean remove(K key, Object o);
 
+	V pop(K key);
+
 	Long size(K key);
 
 	RedisOperations<K, V> getOperations();