meka.experiment.datasetproviders

Class MultiDatasetProvider

java.lang.Object

meka.events.LogObject

meka.experiment.datasetproviders.AbstractDatasetProvider

meka.experiment.datasetproviders.MultiDatasetProvider

All Implemented Interfaces:

Serializable, Iterator<weka.core.Instances>, LogSupporter, DatasetProvider, weka.core.OptionHandler

public class MultiDatasetProvider
extends AbstractDatasetProvider

Combines multiple dataset providers.

Version:

$Revision$

Author:

FracPete (fracpete at waikato dot ac dot nz)

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected int	m_Current the iterator index.
protected DatasetProvider[]	m_Providers the datasset providers to use.

Fields inherited from class meka.events.LogObject

m_Debug, m_LogListeners

Constructor Summary

Constructors

Constructor and Description
MultiDatasetProvider()

Method Summary

Modifier and Type	Method and Description
void	addLogListener(LogListener l) Adds the log listener to use.
protected DatasetProvider[]	getDefaultProviders() Returns the default dataset providers to use.
String[]	getOptions() Returns the options.
DatasetProvider[]	getProviders() Returns the dataset providers to use.
String	globalInfo() Description to be displayed in the GUI.
boolean	hasNext() Returns whether another dataset is available.
String	initialize() Initializes the provider to start providing datasets from scratch.
Enumeration<weka.core.Option>	listOptions() Returns an enumeration of all the available options..
weka.core.Instances	next() Returns the next dataset.
String	providersTipText() Describes this property.
void	removeLogListener(LogListener l) Remove the log listener to use.
void	setOptions(String[] options) Sets the options.
void	setProviders(DatasetProvider[] value) Sets the dataset providers to use.

Methods inherited from class meka.experiment.datasetproviders.AbstractDatasetProvider

finish, remove

Methods inherited from class meka.events.LogObject

debug, getLogListeners, handleException, log

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining

Methods inherited from interface meka.events.LogSupporter

log

Field Detail

m_Providers

protected DatasetProvider[] m_Providers

the datasset providers to use.

m_Current

protected int m_Current

the iterator index.

Constructor Detail

MultiDatasetProvider

public MultiDatasetProvider()

Method Detail

globalInfo

public String globalInfo()

Description to be displayed in the GUI.

Specified by:

globalInfo in class AbstractDatasetProvider

Returns:

the description

getDefaultProviders

protected DatasetProvider[] getDefaultProviders()

Returns the default dataset providers to use.

Returns:

the providers

setProviders

public void setProviders(DatasetProvider[] value)

Sets the dataset providers to use.

Parameters:

value - the providers

getProviders

public DatasetProvider[] getProviders()

Returns the dataset providers to use.

Returns:

the providers

providersTipText

public String providersTipText()

Describes this property.

Returns:

the description

listOptions

public Enumeration<weka.core.Option> listOptions()

Returns an enumeration of all the available options..

Specified by:

listOptions in interface weka.core.OptionHandler

Overrides:

listOptions in class AbstractDatasetProvider

Returns:

an enumeration of all available options.

setOptions

public void setOptions(String[] options)
                throws Exception

Sets the options.

Specified by:

setOptions in interface weka.core.OptionHandler

Overrides:

setOptions in class AbstractDatasetProvider

Parameters:

options - the options

Throws:

Exception - if parsing of options fails

getOptions

public String[] getOptions()

Returns the options.

Specified by:

getOptions in interface weka.core.OptionHandler

Overrides:

getOptions in class AbstractDatasetProvider

Returns:

the options

addLogListener

public void addLogListener(LogListener l)

Adds the log listener to use.

Specified by:

addLogListener in interface LogSupporter

Overrides:

addLogListener in class LogObject

Parameters:

l - the listener

removeLogListener

public void removeLogListener(LogListener l)

Remove the log listener to use.

Specified by:

removeLogListener in interface LogSupporter

Overrides:

removeLogListener in class LogObject

Parameters:

l - the listener

initialize

public String initialize()

Initializes the provider to start providing datasets from scratch.

Specified by:

initialize in interface DatasetProvider

Overrides:

initialize in class AbstractDatasetProvider

Returns:

null if successfully initialized, otherwise error message

hasNext

public boolean hasNext()

Returns whether another dataset is available.

Returns:

true if another dataset is available

next

public weka.core.Instances next()

Returns the next dataset.

Returns:

the next dataset