org.mule.transformers
Class AbstractEventAwareTransformer

java.lang.Object
  extended byorg.mule.transformers.AbstractTransformer
      extended byorg.mule.transformers.AbstractEventAwareTransformer
All Implemented Interfaces:
java.lang.Cloneable, Initialisable, java.io.Serializable, UMOSimpleTransformer, UMOTransformer
Direct Known Subclasses:
ObjectToHttpClientMethodRequest, StringToEmailMessage, UMOMessageToResponseString

public abstract class AbstractEventAwareTransformer
extends AbstractTransformer

AbstractEventAwareTransformer is a transformer that has a reference to the current message. This message can be used obtains properties associated with the current message useful to the transform. Note that when part of a transform chain, the Message payload reflects the pre-transform message state, unless there is no current event for this thread, then the message will be a new MuleMessage with the src as it's payload. Transformers should always work on the src object not the message payload.

Version:
$Revision: 1.1.1.1 $
Author:
Ross Mason
See Also:
UMOMessage, MuleMessage, Serialized Form

Field Summary
 
Fields inherited from class org.mule.transformers.AbstractTransformer
endpoint, logger, name, returnClass, transformer, TRANSFORMER_DEFAULT
 
Fields inherited from interface org.mule.umo.transformer.UMOSimpleTransformer
SERVICE_ID
 
Constructor Summary
AbstractEventAwareTransformer()
           
 
Method Summary
 java.lang.Object doTransform(java.lang.Object src)
           
abstract  java.lang.Object transform(java.lang.Object src, UMOEventContext context)
           
 
Methods inherited from class org.mule.transformers.AbstractTransformer
checkReturnClass, clone, generateTransformerName, getEndpoint, getFinalReturnClass, getName, getReturnClass, getSourceTypeClassesIterator, getTransformer, initialise, isSourceTypeSupported, registerSourceType, setEndpoint, setName, setReturnClass, setSourceType, setTransformer, transform, unregisterSourceType
 
Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

AbstractEventAwareTransformer

public AbstractEventAwareTransformer()
Method Detail

doTransform

public final java.lang.Object doTransform(java.lang.Object src)
                                   throws TransformerException
Specified by:
doTransform in class AbstractTransformer
Throws:
TransformerException

transform

public abstract java.lang.Object transform(java.lang.Object src,
                                           UMOEventContext context)
                                    throws TransformerException
Throws:
TransformerException


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