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26.9. Using a Spring TaskExecutor for @Asynchronous

Spring provides an abstraction for executing code asynchronously, called a TaskExecutor. The Spring-Seam integration lets you use a Spring TaskExecutor to execute immediate @Asynchronous method calls. To enable this functionality, install the SpringTaskExecutorDispatchor and provide a Spring -bean defined taskExecutor like so: 
<spring:task-executor-dispatcher  
        task-executor="#{springThreadPoolTaskExecutor}"/>
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Because a Spring TaskExecutor does not support scheduling asynchronous events, you can provide handling with a fallback Seam Dispatcher, like so: 
<!-- 
  Install a ThreadPoolDispatcher to handle scheduled asynchronous event
-->
<core:thread-pool-dispatcher name="threadPoolDispatcher"/>

<!-- Install the SpringDispatcher as default -->
<spring:task-executor-dispatcher 
        task-executor="#{springThreadPoolTaskExecutor}" 
        schedule-dispatcher="#{threadPoolDispatcher}"/>
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