org.apache.hadoop.mapred.jobcontrol
Class Job

java.lang.Object
  extended by org.apache.hadoop.mapreduce.lib.jobcontrol.ControlledJob
      extended by org.apache.hadoop.mapred.jobcontrol.Job

@InterfaceAudience.Public
@InterfaceStability.Stable
public class Job
extends ControlledJob


Field Summary
static int DEPENDENT_FAILED
           
static int FAILED
           
static int READY
           
static int RUNNING
           
static int SUCCESS
           
static int WAITING
           
 
Fields inherited from class org.apache.hadoop.mapreduce.lib.jobcontrol.ControlledJob
CREATE_DIR
 
Constructor Summary
Job(JobConf conf)
           
Job(JobConf jobConf, ArrayList<?> dependingJobs)
          Construct a job.
 
Method Summary
 boolean addDependingJob(Job dependingJob)
          Add a job to this jobs' dependency list.
 JobID getAssignedJobID()
           
 ArrayList<Job> getDependingJobs()
           
 JobClient getJobClient()
           
 JobConf getJobConf()
           
 String getMapredJobID()
           
 int getState()
           
 void setAssignedJobID(JobID mapredJobID)
          Deprecated. setAssignedJobID should not be called. JOBID is set by the framework.
 void setJobConf(JobConf jobConf)
          Set the mapred job conf for this job.
 void setMapredJobID(String mapredJobID)
          Deprecated. 
protected  void setState(int state)
          Deprecated. 
 
Methods inherited from class org.apache.hadoop.mapreduce.lib.jobcontrol.ControlledJob
addDependingJob, failJob, getDependentJobs, getJob, getJobID, getJobName, getJobState, getMapredJobId, getMessage, isCompleted, isReady, killJob, setJob, setJobID, setJobName, setJobState, setMessage, submit, toString
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

SUCCESS

public static final int SUCCESS
See Also:
Constant Field Values

WAITING

public static final int WAITING
See Also:
Constant Field Values

RUNNING

public static final int RUNNING
See Also:
Constant Field Values

READY

public static final int READY
See Also:
Constant Field Values

FAILED

public static final int FAILED
See Also:
Constant Field Values

DEPENDENT_FAILED

public static final int DEPENDENT_FAILED
See Also:
Constant Field Values
Constructor Detail

Job

public Job(JobConf jobConf,
           ArrayList<?> dependingJobs)
    throws IOException
Construct a job.

Parameters:
jobConf - a mapred job configuration representing a job to be executed.
dependingJobs - an array of jobs the current job depends on
Throws:
IOException

Job

public Job(JobConf conf)
    throws IOException
Throws:
IOException
Method Detail

getAssignedJobID

public JobID getAssignedJobID()
Returns:
the mapred ID of this job as assigned by the mapred framework.

setAssignedJobID

@Deprecated
public void setAssignedJobID(JobID mapredJobID)
Deprecated. setAssignedJobID should not be called. JOBID is set by the framework.


getJobConf

public JobConf getJobConf()
Returns:
the mapred job conf of this job

setJobConf

public void setJobConf(JobConf jobConf)
Set the mapred job conf for this job.

Parameters:
jobConf - the mapred job conf for this job.

getState

public int getState()
Returns:
the state of this job

setState

@Deprecated
protected void setState(int state)
Deprecated. 

This is a no-op function, Its a behavior change from 1.x We no more can change the state from job

Parameters:
state - the new state for this job.

addDependingJob

public boolean addDependingJob(Job dependingJob)
Add a job to this jobs' dependency list. Dependent jobs can only be added while a Job is waiting to run, not during or afterwards.

Parameters:
dependingJob - Job that this Job depends on.
Returns:
true if the Job was added.

getJobClient

public JobClient getJobClient()
Returns:
the job client of this job

getDependingJobs

public ArrayList<Job> getDependingJobs()
Returns:
the depending jobs of this job

getMapredJobID

public String getMapredJobID()
Returns:
the mapred ID of this job as assigned by the mapred framework.

setMapredJobID

@Deprecated
public void setMapredJobID(String mapredJobID)
Deprecated. 

This is no-op method for backward compatibility. It's a behavior change from 1.x, we can not change job ids from job.

Parameters:
mapredJobID - the mapred job ID for this job.


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