api/java/src/main/java/com/navercorp/redis/cluster/spring/DefaultSessionOfHashSetOperations.java
public Long expire(H key, long timeout, TimeUnit unit) {
        final byte[] rawKey = rawKey(key);
        final long expireSeconds = unit.toSeconds(timeout);

        return execute(new RedisCallback<Long>() {
            public Long doInRedis(RedisConnection connection) throws DataAccessException {
                return ((RedisClusterConnection) connection).ssExpire(rawKey, expireSeconds);
            }
        }, true);
    }
public Long expire(H key, long timeout, TimeUnit unit) {
        final byte[] rawKey = rawKey(key);
        final long expireSeconds = unit.toSeconds(timeout);

        return execute(new RedisCallback<Long>() {
            public Long doInRedis(RedisConnection connection) throws DataAccessException {
                return ((RedisClusterConnection) connection).ssExpire(rawKey, expireSeconds);
            }
        }, true);
    }
/*
@see SessionOfHashSetOperations#expire(java.lang.Object, long, java.util.concurrent.TimeUnit)