moa.recommender.dataset.impl

Class MovielensDataset

java.lang.Object

moa.AbstractMOAObject

moa.options.AbstractOptionHandler

moa.recommender.dataset.impl.MovielensDataset

All Implemented Interfaces:

Serializable, MOAObject, OptionHandler, Dataset

public class MovielensDataset
extends AbstractOptionHandler
implements Dataset

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
FileOption	fileOption

Fields inherited from class moa.options.AbstractOptionHandler

classOptionNamesToPreparedObjects, options

Constructor Summary

Constructors

Constructor and Description
MovielensDataset()

Method Summary

Methods

Modifier and Type	Method and Description
int	curItemID()
double	curRating()
int	curUserID()
void	getDescription(StringBuilder sb, int indent) Returns a string representation of this object.
String	getPurposeString() Gets the purpose of this object
void	init()
boolean	next()
protected void	prepareForUseImpl(TaskMonitor monitor, ObjectRepository repository) This method describes the implementation of how to prepare this object for use.
void	reset()
String	toString() Returns a description of the object.

Methods inherited from class moa.options.AbstractOptionHandler

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

Methods inherited from class moa.AbstractMOAObject

copy, measureByteSize, measureByteSize

Methods inherited from class java.lang.Object

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

Methods inherited from interface moa.MOAObject

measureByteSize

Field Detail

fileOption

public FileOption fileOption

Constructor Detail

MovielensDataset

public MovielensDataset()

Method Detail

getPurposeString

public String getPurposeString()

Description copied from interface: OptionHandler

Gets the purpose of this object

Specified by:

getPurposeString in interface OptionHandler

Overrides:

getPurposeString in class AbstractOptionHandler

Returns:

the string with the purpose of this object

init

public void init()

next

public boolean next()

Specified by:

next in interface Dataset

toString

public String toString()

Description copied from class: AbstractMOAObject

Returns a description of the object.

Overrides:

toString in class AbstractMOAObject

Returns:

a description of the object

curUserID

public int curUserID()

Specified by:

curUserID in interface Dataset

curItemID

public int curItemID()

Specified by:

curItemID in interface Dataset

curRating

public double curRating()

Specified by:

curRating in interface Dataset

reset

public void reset()

Specified by:

reset in interface Dataset

prepareForUseImpl

protected void prepareForUseImpl(TaskMonitor monitor,
                     ObjectRepository repository)

Description copied from class: AbstractOptionHandler

This method describes the implementation of how to prepare this object for use. All classes that extends this class have to implement prepareForUseImpl and not prepareForUse since prepareForUse calls prepareForUseImpl.

Specified by:

prepareForUseImpl in class AbstractOptionHandler

Parameters:

monitor - the TaskMonitor to use

repository - the ObjectRepository to use

getDescription

public void getDescription(StringBuilder sb,
                  int indent)

Description copied from interface: MOAObject

Returns a string representation of this object. Used in AbstractMOAObject.toString to give a string representation of the object.

Specified by:

getDescription in interface MOAObject

Parameters:

sb - the stringbuilder to add the description

indent - the number of characters to indent