Package org.springframework.messaging.converter

Class GenericMessageConverter

java.lang.Object

org.springframework.messaging.converter.SimpleMessageConverter

org.springframework.messaging.converter.GenericMessageConverter

All Implemented Interfaces:

MessageConverter

public class GenericMessageConverter
extends SimpleMessageConverter

An extension of the SimpleMessageConverter that uses a ConversionService to convert the payload of the message to the requested type.

Return null if the conversion service cannot convert from the payload type to the requested type.

Since:

4.1

Author:

Stephane Nicoll

See Also:

• ConversionService

Constructor Summary

Constructors

Constructor	Description
GenericMessageConverter()	Create a new instance with a default ConversionService.
GenericMessageConverter(ConversionService conversionService)	Create a new instance with the given ConversionService.

Method Summary

Modifier and Type	Method	Description
Object	fromMessage(Message<?> message, Class<?> targetClass)	Convert the payload of a Message from a serialized form to a typed Object of the specified target class.

Methods inherited from class org.springframework.messaging.converter.SimpleMessageConverter

toMessage

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

GenericMessageConverter

public GenericMessageConverter()

Create a new instance with a default ConversionService.

GenericMessageConverter

public GenericMessageConverter(ConversionService conversionService)

Create a new instance with the given ConversionService.

Method Details

fromMessage

@Nullable
public Object fromMessage(Message<?> message,
 Class<?> targetClass)

Description copied from interface: MessageConverter

Convert the payload of a Message from a serialized form to a typed Object of the specified target class. The MessageHeaders.CONTENT_TYPE header should indicate the MIME type to convert from.

If the converter does not support the specified media type or cannot perform the conversion, it should return null.

Specified by:

fromMessage in interface MessageConverter

Overrides:

fromMessage in class SimpleMessageConverter

Parameters:

message - the input message

targetClass - the target class for the conversion

Returns:

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