top.dcenter.ums.security.core.oauth.repository.jdbc.cache

接口 IRedisHashCacheWriter

所有超级接口:

org.springframework.data.redis.cache.RedisCacheWriter

public interface IRedisHashCacheWriter
extends org.springframework.data.redis.cache.RedisCacheWriter

IRedisHashCacheWriter provides low level access to Redis commands (HSET, HMSET, HSETNX, HGET, HMGET HGETALL, HEXPIRE,...) used for caching.
The IRedisHashCacheWriter may be shared by multiple cache implementations and is responsible for writing / reading binary data to / from Redis. The implementation honors potential cache lock flags that might be set.

版本:

V1.0 Created by 2020/6/13 14:15

作者:

YongWu zheng

另请参阅:

RedisCacheWriter

方法概要

限定符和类型	方法和说明
byte[]	hGet(String name, byte[] key, byte[] field) Get the binary value representation from Redis stored for the given key and field.
void	hPut(String name, byte[] key, byte[] field, byte[] value, Duration ttl) Write the given (key, field)/value pair to Redis an set the expiration time if defined.
byte[]	hPutIfAbsent(String name, byte[] key, byte[] field, byte[] value, Duration ttl) Write the given value to Redis if the key does not already exist.
void	hRemove(String name, byte[] key, byte[] field) Remove the given key and field from Redis.

从接口继承的方法 org.springframework.data.redis.cache.RedisCacheWriter

clean, get, lockingRedisCacheWriter, nonLockingRedisCacheWriter, put, putIfAbsent, remove

方法详细资料

hPut

void hPut(String name,
          byte[] key,
          byte[] field,
          byte[] value,
          @Nullable
          Duration ttl)

Write the given (key, field)/value pair to Redis an set the expiration time if defined.

参数:

name - The cache name must not be null.

key - The key for the cache entry. Must not be null.

field - The field for the cache entry. Must not be null.

value - The value stored for the key. Must not be null.

ttl - Optional expiration time. Can be null.

hGet

@Nullable
byte[] hGet(String name,
                       byte[] key,
                       byte[] field)

Get the binary value representation from Redis stored for the given key and field.

参数:

name - must not be null.

key - must not be null.

field - The field for the cache entry. Must not be null.

返回:

null if key does not exist.

hPutIfAbsent

@Nullable
byte[] hPutIfAbsent(String name,
                               byte[] key,
                               byte[] field,
                               byte[] value,
                               @Nullable
                               Duration ttl)

Write the given value to Redis if the key does not already exist.

参数:

name - The cache name must not be null.

key - The key for the cache entry. Must not be null.

field - The field for the cache entry. Must not be null.

value - The value stored for the key. Must not be null.

ttl - Optional expiration time. Can be null.

返回:

null if the value has been written, the value stored for the key if it already exists.

hRemove

void hRemove(String name,
             byte[] key,
             byte[] field)

Remove the given key and field from Redis.

参数:

name - The cache name must not be null.

key - The key for the cache entry. Must not be null.

field - The field for the cache entry. Must not be null.