moa.tasks

Class MainTask

java.lang.Object

moa.AbstractMOAObject

moa.options.AbstractOptionHandler

moa.tasks.AbstractTask

moa.tasks.MainTask

All Implemented Interfaces:

Serializable, MOAObject, OptionHandler, Task

Direct Known Subclasses:

ConceptDriftMainTask, EvaluateClustering, EvaluateInterleavedChunks, EvaluateInterleavedTestThenTrain, EvaluateModel, EvaluateOnlineRecommender, EvaluatePeriodicHeldOutTest, EvaluatePrequential, LearnModel, MeasureStreamSpeed, Plot, RegressionMainTask, RunTasks, WriteStreamToARFFFile

public abstract class MainTask
extends AbstractTask

Abstract Main Task. All tasks that want to write their result to a file must extend this class.

Version:

$Revision: 7 $

Author:

Richard Kirkby (rkirkby@cs.waikato.ac.nz)

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected static int	INSTANCES_BETWEEN_MONITOR_UPDATES The number of instances between monitor updates.
FileOption	outputFileOption File option to save the final result of the task to.

Fields inherited from class moa.options.AbstractOptionHandler

classOptionNamesToPreparedObjects, options

Constructor Summary

Constructors

Constructor and Description
MainTask()

Method Summary

Methods

Modifier and Type	Method and Description
protected abstract Object	doMainTask(TaskMonitor monitor, ObjectRepository repository) This method performs this task.
protected Object	doTaskImpl(TaskMonitor monitor, ObjectRepository repository) This method performs this task.

Methods inherited from class moa.tasks.AbstractTask

doTask, doTask, getDescription, getTaskName, prepareForUseImpl

Methods inherited from class moa.options.AbstractOptionHandler

copy, discoverOptionsViaReflection, getCLICreationString, getOptions, getPreparedClassOption, getPreparedClassOption, getPurposeString, prepareClassOptions, prepareForUse, prepareForUse

Methods inherited from class moa.AbstractMOAObject

copy, measureByteSize, measureByteSize, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface moa.tasks.Task

getTaskResultType

Methods inherited from interface moa.MOAObject

copy, measureByteSize

Field Detail

INSTANCES_BETWEEN_MONITOR_UPDATES

protected static final int INSTANCES_BETWEEN_MONITOR_UPDATES

The number of instances between monitor updates.

See Also:

Constant Field Values

outputFileOption

public FileOption outputFileOption

File option to save the final result of the task to.

Constructor Detail

MainTask

public MainTask()

Method Detail

doTaskImpl

protected Object doTaskImpl(TaskMonitor monitor,
                ObjectRepository repository)

Description copied from class: AbstractTask

This method performs this task. AbstractTask implements doTask so all its extensions only need to implement doTaskImpl.

Specified by:

doTaskImpl in class AbstractTask

Parameters:

monitor - the TaskMonitor to use

repository - the ObjectRepository to use

Returns:

an object with the result of this task

doMainTask

protected abstract Object doMainTask(TaskMonitor monitor,
                ObjectRepository repository)

This method performs this task. AbstractTask implements doTask, that uses doTaskImpl. MainTask implements doTaskImpl using doMainTask so its extensions only need to implement doMainTask.

Parameters:

monitor - the TaskMonitor to use

repository - the ObjectRepository to use

Returns:

an object with the result of this task