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

java.lang.Object
  

org.springframework.integration.context.IntegrationObjectSupport
      org.springframework.integration.transformer.AbstractTransformer
          org.springframework.integration.transformer.AbstractPayloadTransformer<T,U>

All Implemented Interfaces:

BeanFactoryAware, BeanNameAware, InitializingBean, NamedComponent, Transformer

Direct Known Subclasses:

JsonToObjectTransformer, MapToObjectTransformer, ObjectToJsonTransformer, 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.

Field Summary

Fields inherited from class org.springframework.integration.context.IntegrationObjectSupport

logger

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 org.springframework.integration.context.IntegrationObjectSupport

afterPropertiesSet, getBeanFactory, getComponentName, getComponentType, getConversionService, getTaskScheduler, onInit, setBeanFactory, setBeanName, setComponentName, setConversionService, setTaskScheduler, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractPayloadTransformer

public AbstractPayloadTransformer()

Method Detail

doTransform

public final U doTransform(Message<?> message)
                    throws java.lang.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:

java.lang.Exception

transformPayload

protected abstract U transformPayload(T payload)
                               throws java.lang.Exception

Throws:

java.lang.Exception