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

Introduction

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

Prototype

Cursor<Map.Entry<byte[], byte[]>> hScan(byte[] key, ScanOptions options);

Source Link

Document

Use a Cursor to iterate over entries in hash at key .

Usage

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

@Override
public Cursor<Entry<HK, HV>> scan(K key, final ScanOptions options) {

    final byte[] rawKey = rawKey(key);
    return execute(new RedisCallback<Cursor<Map.Entry<HK, HV>>>() {

        @Override/*from ww w .  j a  v  a2  s. c  om*/
        public Cursor<Entry<HK, HV>> doInRedis(RedisConnection connection) throws DataAccessException {

            return new ConvertingCursor<Map.Entry<byte[], byte[]>, Map.Entry<HK, HV>>(
                    connection.hScan(rawKey, options),
                    new Converter<Map.Entry<byte[], byte[]>, Map.Entry<HK, HV>>() {

                        @Override
                        public Entry<HK, HV> convert(final Entry<byte[], byte[]> source) {

                            return new Map.Entry<HK, HV>() {

                                @Override
                                public HK getKey() {
                                    return deserializeHashKey(source.getKey());
                                }

                                @Override
                                public HV getValue() {
                                    return deserializeHashValue(source.getValue());
                                }

                                @Override
                                public HV setValue(HV value) {
                                    throw new UnsupportedOperationException(
                                            "Values cannot be set when scanning through entries.");
                                }
                            };

                        }
                    });
        }

    }, true);

}

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

/**
 * Use a {@link Cursor} to iterate over entries in hash at {@code key}.
 * //from  www. j  a  v a 2s. c  o m
 * @since 1.4
 * @see http://redis.io/commands/scan
 * @param key key
 * @param options options
 * @return Cursor
 */
public static Cursor<Entry<byte[], byte[]>> hScan(byte[] key, ScanOptions options) {
    return redisTemplate.execute(new RedisCallback<Cursor<Entry<byte[], byte[]>>>() {
        @Override
        public Cursor<Entry<byte[], byte[]>> doInRedis(RedisConnection redis) throws DataAccessException {
            return redis.hScan(key, options);
        }
    });
}

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

/**
 * Use a {@link Cursor} to iterate over entries in hash at {@code key}.
 * //from ww  w.j  a  v a 2s. c o  m
 * @since 1.4
 * @see http://redis.io/commands/scan
 * @param key key
 * @param options options
 * @return Cursor
 */
public Cursor<Entry<byte[], byte[]>> hScan(byte[] key, ScanOptions options) {
    return redisTemplate.execute(new RedisCallback<Cursor<Entry<byte[], byte[]>>>() {
        @Override
        public Cursor<Entry<byte[], byte[]>> doInRedis(RedisConnection redis) throws DataAccessException {
            return redis.hScan(key, options);
        }
    });
}

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