org.springframework.data.redis.core

Interface RedisCallback<T>

public interface RedisCallback<T>

Callback interface for Redis 'low level' code. To be used with RedisTemplate execution methods, often as anonymous classes within a method implementation. Usually, used for chaining several operations together ( get/set/trim etc....

Author:

Costin Leau, John Blum

Method Summary

Modifier and Type	Method and Description
T	doInRedis(RedisConnection connection) Method called by RedisTemplate with an active RedisConnection.

Method Detail

doInRedis

@Nullable
T doInRedis(RedisConnection connection)
               throws DataAccessException

Method called by RedisTemplate with an active RedisConnection.

Callback code need not care about activating/opening or closing the RedisConnection, nor handling exceptions.

Parameters:

connection - active Redis connection.

Returns:

the result of the operation performed in the callback or null.

Throws:

DataAccessException - if the operation performed by the callback fails to execute in the context of Redis using the given RedisConnection.