Example usage for org.springframework.data.redis.connection RedisConnection lPushX

Introduction

In this page you can find the example usage for org.springframework.data.redis.connection RedisConnection lPushX.

Prototype

@Nullable
Long lPushX(byte[] key, byte[] value);

Source Link

Document

Prepend values to key only if the list exists.

Usage

From source file:com.mauersu.util.redis.DefaultListOperations.java

public Long leftPushIfPresent(K key, V value) {
    final byte[] rawKey = rawKey(key);
    final byte[] rawValue = rawValue(value);
    return execute(new RedisCallback<Long>() {

        public Long doInRedis(RedisConnection connection) {
            connection.select(dbIndex);//from w  w w.  ja v a 2  s .c  o m
            return connection.lPushX(rawKey, rawValue);
        }
    }, true);
}

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From source file:com.zxy.commons.cache.RedisUtils.java

/**
 * Prepend {@code values} to {@code key} only if the list exists.
 * <p>/*from  www .  j  a va 2s. com*/
 * See http://redis.io/commands/lpushx
 * 
 * @param key key
 * @param value value
 * @return lPushX
 */
public static Long lPushX(byte[] key, byte[] value) {
    return redisTemplate.execute(new RedisCallback<Long>() {
        @Override
        public Long doInRedis(RedisConnection redis) throws DataAccessException {
            return redis.lPushX(key, value);
        }
    });
}

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From source file:com.zxy.commons.cache.RedisHelper.java

/**
 * Prepend {@code values} to {@code key} only if the list exists.
 * <p>//from ww w.j a v a  2 s.co m
 * See http://redis.io/commands/lpushx
 * 
 * @param key key
 * @param value value
 * @return lPushX
 */
public Long lPushX(byte[] key, byte[] value) {
    return redisTemplate.execute(new RedisCallback<Long>() {
        @Override
        public Long doInRedis(RedisConnection redis) throws DataAccessException {
            return redis.lPushX(key, value);
        }
    });
}

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