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

Introduction

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

Prototype

@Nullable
byte[] get(byte[] key);

Source Link

Document

Get the value of key .

Usage

From source file:com.github.deerapple.spring.redis.UserDao.java

@Override
public User get(final String id) {
    User result = redisTemplate.execute(new RedisCallback<User>() {

        @Override/*  w w w  .  ja  v a  2 s .  c  om*/
        public User doInRedis(RedisConnection rc) throws DataAccessException {
            RedisSerializer<String> serializer = getRedisSerializer();
            byte[] key = serializer.serialize(id);
            byte[] value = rc.get(key);
            if (value == null) {
                return null;
            }
            String name = serializer.deserialize(value);
            return new User(id, name);
        }
    });
    return result;
}

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

@Override
public ValueWrapper get(final Object key) {
    return redisTemplate.execute(new RedisCallback<ValueWrapper>() {
        public ValueWrapper doInRedis(RedisConnection connection) throws DataAccessException {

            byte[] keyb = SerializationUtils.serialize(key);
            byte[] value = connection.get(keyb);
            if (value == null) {
                return null;
            }//from   ww  w .j a va  2 s .  c om
            return new SimpleValueWrapper(SerializationUtils.deserialize(value));

        }
    });
}

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

public V get(final Object key) {

    return execute(new ValueDeserializingRedisCallback(key) {

        protected byte[] inRedis(byte[] rawKey, RedisConnection connection) {
            connection.select(dbIndex);//  w w  w  .j av  a  2s  .c o  m
            return connection.get(rawKey);
        }
    }, true);
}

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From source file:grails.plugin.cache.redis.GrailsRedisCache.java

@Override
public <T> T get(final Object key, Class<T> type) {
    return (T) template.execute(new RedisCallback<T>() {
        public T doInRedis(RedisConnection connection) throws DataAccessException {
            waitForLock(connection);/*from  w  ww  . j  a va  2s.c o m*/
            byte[] bs = connection.get(computeKey(key));
            return (T) template.getValueSerializer().deserialize(bs);
        }
    }, true);
}

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From source file:grails.plugin.cache.redis.GrailsRedisCache.java

@SuppressWarnings("unchecked")
@Override/*from  w  w w. j a v  a 2  s  . c om*/
public ValueWrapper get(final Object key) {
    return (ValueWrapper) template.execute(new RedisCallback<ValueWrapper>() {
        public ValueWrapper doInRedis(RedisConnection connection) throws DataAccessException {
            waitForLock(connection);
            byte[] bs = connection.get(computeKey(key));
            return (bs == null ? null : newValueWrapper(template.getValueSerializer().deserialize(bs)));
        }
    }, true);
}

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From source file:grails.plugin.cache.redis.GrailsRedisCache.java

@SuppressWarnings("unchecked")
@Override//from  www  .j  a  v  a2 s.  com
public ValueWrapper putIfAbsent(final Object key, final Object value) {
    final byte[] k = computeKey(key);
    return (ValueWrapper) template.execute(new RedisCallback<ValueWrapper>() {
        public ValueWrapper doInRedis(RedisConnection connection) throws DataAccessException {
            waitForLock(connection);
            byte[] bs = connection.get(computeKey(key));

            if (bs == null) {
                connection.multi();
                connection.set(k, template.getValueSerializer().serialize(value));
                connection.zAdd(setName, 0, k);

                // Set key time to live when expiration has been configured.
                if (ttl > NEVER_EXPIRE) {
                    connection.expire(k, ttl);
                    connection.expire(setName, ttl);
                }

                connection.exec();
            }

            bs = connection.get(computeKey(key));
            return (bs == null ? null : newValueWrapper(template.getValueSerializer().deserialize(bs)));
        }
    }, true);
}

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

/**
 * Get the value of {@code key}./*from   w  ww.  j  a v a2 s.c o  m*/
 * <p>
 * See http://redis.io/commands/get
 * 
 * @param key must not be {@literal null}.
 * @return value
 */
public static byte[] get(byte[] key) {
    return redisTemplate.execute(new RedisCallback<byte[]>() {
        @Override
        public byte[] doInRedis(RedisConnection redis) throws DataAccessException {
            return redis.get(key);
        }
    });
}

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

/**
 * Get the value of {@code key}./*from w w w .jav  a  2s  .  co m*/
 * <p>
 * See http://redis.io/commands/get
 * 
 * @param key must not be {@literal null}.
 * @return value
*/
public static String get(String key) {
    return redisTemplate.execute(new RedisCallback<String>() {
        @Override
        public String doInRedis(RedisConnection redis) throws DataAccessException {
            byte[] value = redis.get(key.getBytes());
            if (value == null) {
                return null;
            }
            return new String(value);
        }
    });
}

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

/**
 * Get the value of {@code key}./*w w w .  j a  v a  2s.c  o m*/
 * <p>
 * See http://redis.io/commands/get
 * 
 * @param <T> return object type
 * @param key must not be {@literal null}.
 * @param callback callback
 * @return value
*/
public static <T> T get(byte[] key, RedisTransferCallback<T> callback) {
    return redisTemplate.execute(new RedisCallback<T>() {
        @Override
        public T doInRedis(RedisConnection redis) throws DataAccessException {
            byte[] value = redis.get(key);
            if (value == null) {
                return null;
            }
            return callback.transfer(value);
        }
    });
}

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

/**
 * Get the value of {@code key}.//from  w ww . j  a  va 2 s.c o m
 * <p>
 * See http://redis.io/commands/get
 * 
 * @param <T> return object type
 * @param key must not be {@literal null}.
 * @param clazz clazz
 * @return value
*/
public static <T> T getObject4Json(byte[] key, Class<T> clazz) {
    return redisTemplate.execute(new RedisCallback<T>() {
        @Override
        public T doInRedis(RedisConnection redis) throws DataAccessException {
            //                return callback.transfer(redis.get(key));
            byte[] value = redis.get(key);
            if (value == null) {
                return null;
            }
            return JsonUtils.toObject(new String(value), clazz);
        }
    });
}

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