com.google.appengine.tools.mapreduce.impl

Class MapReduceResultImpl<R>

java.lang.Object

com.google.appengine.tools.mapreduce.impl.MapReduceResultImpl<R>

Type Parameters:

R - type of result

All Implemented Interfaces:

MapReduceResult<R>, Externalizable, Serializable

public class MapReduceResultImpl<R>
extends Object
implements MapReduceResult<R>, Externalizable

Implementation of MapReduceResult.

Author:

ohler@google.com (Christian Ohler)

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
MapReduceResultImpl()
MapReduceResultImpl(R outputResult, Counters counters)

Method Summary

Methods

Modifier and Type	Method and Description
Counters	getCounters() Returns the counter values at the end of the job.
R	getOutputResult() Returns the result from Output.finish(java.util.Collection<? extends com.google.appengine.tools.mapreduce.OutputWriter<O>>) or null if completed unsuccessfully.
void	readExternal(ObjectInput in)
String	toString()
void	writeExternal(ObjectOutput out)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

MapReduceResultImpl

public MapReduceResultImpl()

MapReduceResultImpl

public MapReduceResultImpl(R outputResult,
                   Counters counters)

Method Detail

getOutputResult

public R getOutputResult()

Description copied from interface: MapReduceResult

Returns the result from Output.finish(java.util.Collection<? extends com.google.appengine.tools.mapreduce.OutputWriter<O>>) or null if completed unsuccessfully.

Specified by:

getOutputResult in interface MapReduceResult<R>

getCounters

public Counters getCounters()

Description copied from interface: MapReduceResult

Returns the counter values at the end of the job.

Specified by:

getCounters in interface MapReduceResult<R>

toString

public String toString()

Overrides:

toString in class Object

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Throws:

IOException

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Throws:

IOException

ClassNotFoundException