How should I use a Progress Monitor

iteye_12502

于 2009-09-20 06:09:47 发布

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分类专栏： Java开发笔记文章标签： Eclipse

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本文介绍了在Eclipse中使用进度监控的最佳实践方法，包括如何启动进度监控并完成至少一部分工作，确保开始的任务最终得到完成，以及如何在将监控器传递给其他方法时使用子进度监控器。

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在package org.eclipse.core.runtime;

Always start the progress monitor and do at least 1 bit of work. For example:
```
monitor.beginTask("Working", 4);


monitor.work(1);
```

Always finish started job.

try{


  monitor.beginTask("Working", 4);

  


monitor.work(1);

  // some work
}


finally{


  monitor.done();




}

Make use of SubProgressMonitor if sending the monitor to another method:

try{


  monitor.beginTask("Working", 8);


  monitor.work(1);




  SubProgressMonitor sub=new SubProgressMonitor(monitor, 3);

  


doSomeWork(sub);

  


sub.done();  // don't forget to make sure the sub monitor is done




  sub=new SubProgressMonitor(monitor, 3);




doSomeMoreWork(sub);

  sub.done();  // don't forget to make sure the sub monitor is done 


}


finally{


  monitor.done();




}