The Talon Manual

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Declaration in Config DDL

 

@AppInjectionPoint
public void initialize(AepEngine engine) {
  // for messaging
  

 

<app 
Code Block
languagejava
<app name="processor"
 
 mainClass="com.sample.Application">
  <messaging>
    <factories>
      <factory 

  <messaging>
    <factories>
      <factory name="com.sample.messages.MessageFactory"/>
    </factories>
  </messaging>
  <storage enabled="true">
    <factories>
      <factory name="com.sample.state.StateFactory" />
    </factories>
 </storage>
</app>

 

Programmatic Registration


    </factories>
  </messaging>
</app>


Programmatic Registration

 

Code Block
languagejava
@AppInjectionPoint
public void initialize(AepEngine engine) {
  // for messaging
  engine.registerFactory(new
 
 com.sample.messages.MessageFactory());

}

 

Enable Storage

To actually achieve high availability storage must be configured for the application. The primary means of storage is for Talon apps is through clustered replication to a backup instance. Talon also logs state changes to a disk based transaction log as a fallback mechanism. Storage and persistence can be enabled in the application's configuration xml. 

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