org.apache.hadoop.mapred
Class MapTaskCompletionEventsUpdate
java.lang.Object
org.apache.hadoop.mapred.MapTaskCompletionEventsUpdate
- All Implemented Interfaces:
- Writable
public class MapTaskCompletionEventsUpdate
- extends Object
- implements Writable
A class that represents the communication between the tasktracker and child
tasks w.r.t the map task completion events. It also indicates whether the
child task should reset its events index.
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
MapTaskCompletionEventsUpdate
public MapTaskCompletionEventsUpdate()
MapTaskCompletionEventsUpdate
public MapTaskCompletionEventsUpdate(TaskCompletionEvent[] events,
boolean reset)
shouldReset
public boolean shouldReset()
getMapTaskCompletionEvents
public TaskCompletionEvent[] getMapTaskCompletionEvents()
write
public void write(DataOutput out)
throws IOException
- Description copied from interface:
Writable
- Serialize the fields of this object to
out.
- Specified by:
write in interface Writable
- Parameters:
out - DataOuput to serialize this object into.
- Throws:
IOException
readFields
public void readFields(DataInput in)
throws IOException
- Description copied from interface:
Writable
- Deserialize the fields of this object from
in.
For efficiency, implementations should attempt to re-use storage in the
existing object where possible.
- Specified by:
readFields in interface Writable
- Parameters:
in - DataInput to deseriablize this object from.
- Throws:
IOException
Copyright © 2009 The Apache Software Foundation