Thursday, July 16, 2009

swingWorker doInBackground() -- basic tips

1) for a novice, it's a practical defensive practice to catch Throwable in this method, otherwise the exception might be hidden somewhere.
2) if nothing to return, then Void is ok.
3) this method always runs on a non-EDT thread, so the assert helps document that.

public Void doInBackground(){
  StaticSwingUtil.assertNotEDT();
  try {
// time-consuming scan
    scanTables(this.command, this.tagLine);
  } catch (Throwable e) {
    e.printStackTrace();
  }
  return null;
}

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http://www.linkedin.com/in/tanbin