org.springframework.amqp.support.converter

Interface SmartMessageConverter

All Superinterfaces:

MessageConverter

All Known Implementing Classes:

Jackson2JsonMessageConverter

public interface SmartMessageConverter
extends MessageConverter

An extended MessageConverter SPI with conversion hint support.

In case of a conversion hint being provided, the framework will call these extended methods if a converter implements this interface, instead of calling the regular fromMessage / toMessage variants.

Since:

2.0

Author:

Gary Russell

Method Summary

Modifier and Type	Method and Description
Object	fromMessage(Message message, Object conversionHint) A variant of MessageConverter.fromMessage(Message) which takes an extra conversion context as an argument.

Methods inherited from interface org.springframework.amqp.support.converter.MessageConverter

fromMessage, toMessage

Method Detail

fromMessage

Object fromMessage(Message message,
                   Object conversionHint)
            throws MessageConversionException

A variant of MessageConverter.fromMessage(Message) which takes an extra conversion context as an argument.

Parameters:

message - the input message.

conversionHint - an extra object passed to the MessageConverter.

Returns:

the result of the conversion, or null if the converter cannot perform the conversion.

Throws:

MessageConversionException - if the conversion fails.

See Also:

MessageConverter.fromMessage(Message)