[GitHub] [incubator-nemo] taegeonum commented on a change in pull request #187: [NEMO-324] Distinguish Beam's run and waitUntilFinish methods

[GitBox <gi...@apache.org>]

taegeonum commented on a change in pull request #187: [NEMO-324] Distinguish Beam's run and waitUntilFinish methods
URL: https://github.com/apache/incubator-nemo/pull/187#discussion_r265400945
 
 

 ##########
 File path: compiler/frontend/beam/src/main/java/org/apache/nemo/compiler/frontend/beam/NemoPipelineResult.java
 ##########
 @@ -24,17 +24,28 @@
 import org.joda.time.Duration;
 
 import java.io.IOException;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.TimeUnit;
 
 /**
  * Beam result.
  */
 public final class NemoPipelineResult extends ClientEndpoint implements PipelineResult {
+  private final CountDownLatch jobDone;
 
   /**
    * Default constructor.
    */
   public NemoPipelineResult() {
     super(new BeamStateTranslator());
+    jobDone = new CountDownLatch(1);
 
 Review comment:
   Why don't you get this `CountDownLatch` as an argument? `NemoRunner` can inject it to this, and you can remove `triggerJobDone()` 

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