org.aredis.cache

Interface DataHandler

All Known Implementing Classes:

BinaryHandler, JavaHandler, StringHandler

public interface DataHandler

Specifies the serialization and de-serialization of a value when storing to and retrieving an Object from the Redis Server. This is used to marshal and unmarshal the values in a Redis Command. The keys and parameters in the command use a StringHandler to encode the keys and values in UTF-8.

Author:

Suresh

Method Summary

Methods

Modifier and Type	Method and Description
Object	deserialize(Object metaData, byte[] b, int offset, int len, ServerInfo serverInfo) de-serialize value
void	serialize(Object data, Object metaData, CompressibleByteArrayOutputStream op, ServerInfo serverInfo) Serialze value

Method Detail

serialize

void serialize(Object data,
             Object metaData,
             CompressibleByteArrayOutputStream op,
             ServerInfo serverInfo)
               throws IOException

Serialze value

Parameters:

data - Data to serialize

metaData - Additional Info to serialize if required by the handler like the Object Class for example. Pass null if the Data Handler does not require addtional info.

op - An output stream which can automatically compress the data in a session if it crosses a configured. Compression Threshold

serverInfo - Redis ServerInfo containing the Redis Server details

Throws:

IOException - If there is an error during serialization

deserialize

Object deserialize(Object metaData,
                 byte[] b,
                 int offset,
                 int len,
                 ServerInfo serverInfo)
                   throws IOException

de-serialize value

Parameters:

metaData - Additional Info to de-serialize if required by the handler

b - Byte Array containing the data from the Redis Server

offset - Starting offset of the data

len - Length of the data in bytes

serverInfo - Redis ServerInfo containing the Redis Server details

Returns:

De-serialized Data

Throws:

IOException - If there is an error during de-serialization