org.springframework.integration.transformer
Class AbstractPayloadTransformer<T,U>

java.lang.Object
  org.springframework.integration.transformer.AbstractTransformer
      org.springframework.integration.transformer.AbstractPayloadTransformer<T,U>

All Implemented Interfaces:

Transformer

Direct Known Subclasses:

MapToObjectTransformer, ObjectToMapTransformer, ObjectToStringTransformer, PayloadTypeConvertingTransformer, SourceCreatingTransformer, UnmarshallingTransformer

public abstract class AbstractPayloadTransformer<T,U>
extends AbstractTransformer

A base class for Transformer implementations that modify the payload of a Message. If the return value is itself a Message, it will be used as the result. Otherwise, the return value will be used as the payload of the result Message.

Author:

Mark Fisher

Constructor Summary

AbstractPayloadTransformer()

Method Summary

U	doTransform(Message<?> message) Subclasses must implement this method to provide the transformation logic.
protected abstract U	transformPayload(T payload)

Methods inherited from class org.springframework.integration.transformer.AbstractTransformer

transform

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractPayloadTransformer

public AbstractPayloadTransformer()

Method Detail

doTransform

public final U doTransform(Message<?> message)
                    throws Exception

Description copied from class: AbstractTransformer

Subclasses must implement this method to provide the transformation logic. If the return value is itself a Message, it will be used as the result. Otherwise, any non-null return value will be used as the payload of the result Message.

Specified by:

doTransform in class AbstractTransformer

Throws:

Exception

transformPayload

protected abstract U transformPayload(T payload)
                               throws Exception

Throws:

Exception