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POHow do I autowire a Spring TaskExecutor created thread?
 

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  1. POHow do I autowire a Spring TaskExecutor created thread?
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    <p>According to <a href="http://static.springsource.org/spring/docs/3.0.4.RELEASE/reference/html/scheduling.html" rel="noreferrer">Spring's documentation</a> the way to use the TaskExecutor is as follows:</p> <pre><code>import org.springframework.core.task.TaskExecutor; public class TaskExecutorExample { private class MessagePrinterTask implements Runnable { private String message; public MessagePrinterTask(String message) { this.message = message; } public void run() { System.out.println(message); } } private TaskExecutor taskExecutor; public TaskExecutorExample(TaskExecutor taskExecutor) { this.taskExecutor = taskExecutor; } public void printMessages() { for(int i = 0; i &lt; 25; i++) { taskExecutor.execute(new MessagePrinterTask("Message" + i)); } } } </code></pre> <p>However, if MessagePrinterTask has autowired dependencies they will not be configured by Spring because we are instantiating our bean outside of Spring's context (at least that's how I understand it) even though Spring will provide the actual thread creation. <em>If MessagePrinterTask were to have autowired dependencies how do we get Spring to recognize them?</em> I tried the following modified example to no avail (and yes, autowiring is enabled properly):</p> <pre><code>import org.springframework.core.task.TaskExecutor; public class TaskExecutorExample { @Component private class MessagePrinterTask implements Runnable { @Autowired private autoWiredDependency; public void run() { autoWiredDependency.doNotThrowNullPointerExceptionPlease(); } } private TaskExecutor taskExecutor; public TaskExecutorExample(TaskExecutor taskExecutor) { this.taskExecutor = taskExecutor; } public void printMessages() { for(int i = 0; i &lt; 25; i++) { taskExecutor.execute(new MessagePrinterTask()); } } } </code></pre>
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