org.mule.cache.keygenerator
Class ExpressionKeyGenerator

java.lang.Object
  extended by org.mule.cache.keygenerator.ExpressionKeyGenerator
All Implemented Interfaces:
KeyGenerator

public class ExpressionKeyGenerator
extends Object
implements KeyGenerator

Implements KeyGenerator using the Mule expression language to generate the cache keys.


Field Summary
protected  Log logger
           
 
Constructor Summary
ExpressionKeyGenerator()
           
 
Method Summary
 Serializable generateKey(MuleEvent event)
          Generates a key for an event.
 String getExpression()
           
 void setExpression(String expression)
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

logger

protected Log logger
Constructor Detail

ExpressionKeyGenerator

public ExpressionKeyGenerator()
Method Detail

generateKey

public Serializable generateKey(MuleEvent event)
                         throws NotSerializableException
Description copied from interface: KeyGenerator
Generates a key for an event.

The generation algorithm should return the same key value for all the events that are considered equals.

Specified by:
generateKey in interface KeyGenerator
Parameters:
event - the event to generate the key for
Returns:
the generated key
Throws:
NotSerializableException - if the generated key is not Serializable

getExpression

public String getExpression()

setExpression

public void setExpression(String expression)


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