[jira] Updated: (HADOOP-544) Replace the job, tip and task ids with objects.

["Owen O'Malley (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HADOOP-544?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Owen O'Malley updated HADOOP-544:
---------------------------------

    Description: 
I think that it is silly to have tools parsing the strings that the framework builds for task ids. I propose:

class JobId implements Writable {
   public int getJobId() {...}
}

class TaskId implements Writable {
  public JobId getJobId(); 
  public boolean isMap() { ... }
  public int getTaskId() { ... }
}

class TaskAttemptId implements Writable {
  public TaskId getTaskId();
  public int getAttemptId();
}

each of the classes will have a toString() method that generates the current string.

  was:
I think that it is silly to have tools parsing the strings that the framework builds for task ids. I propose:

class JobId implements Writable {
  private int;
  ...
}

class TaskId extends JobId { 
  private boolean isMap;
  private int taskId;
  ...
}

class TaskAttemptId extends TaskId {
  private int attemptId;
  ...
}

each of the classes will have a toString() method that generates the current string.


> Replace the job, tip and task ids with objects.
> -----------------------------------------------
>
>                 Key: HADOOP-544
>                 URL: https://issues.apache.org/jira/browse/HADOOP-544
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: mapred
>    Affects Versions: 0.6.2
>            Reporter: Owen O'Malley
>         Assigned To: Owen O'Malley
>
> I think that it is silly to have tools parsing the strings that the framework builds for task ids. I propose:
> class JobId implements Writable {
>    public int getJobId() {...}
> }
> class TaskId implements Writable {
>   public JobId getJobId(); 
>   public boolean isMap() { ... }
>   public int getTaskId() { ... }
> }
> class TaskAttemptId implements Writable {
>   public TaskId getTaskId();
>   public int getAttemptId();
> }
> each of the classes will have a toString() method that generates the current string.

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