net.librec.data.model

Class AbstractDataModel

java.lang.Object

net.librec.conf.Configured

net.librec.data.model.AbstractDataModel

All Implemented Interfaces:

Configurable, DataModel

Direct Known Subclasses:

ArffDataModel, JDBCDataModel, TextDataModel

public abstract class AbstractDataModel
extends Configured
implements DataModel

A AbstractDataModel represents a data access class to the input file.

Author:

WangYuFeng

Field Summary

Fields

Modifier and Type	Field and Description
protected DataContext	context context
DataAppender	dataAppender Data Splitter DataAppender
protected DataConvertor	dataConvertor The convertor of the model DataConvertor
DataSplitter	dataSplitter Data Splitter DataSplitter
protected org.apache.commons.logging.Log	LOG LOG
protected DataSet	testDataSet test DataSet
protected DataSet	trainDataSet train DataSet
protected DataSet	validDataSet valid DataSet

Fields inherited from class net.librec.conf.Configured

conf, CONF_DATA_COLUMN_FORMAT, CONF_DATA_INPUT_PATH, CONF_DFS_DATA_DIR

Constructor Summary

Constructors

Constructor and Description
AbstractDataModel()

Method Summary

Methods

Modifier and Type	Method and Description
protected abstract void	buildConvert() Build Convert.
void	buildDataModel() Build data model.
protected void	buildFeature() Build appender data.
protected void	buildSplitter() Build Splitter.
DataContext	getContext() Get data context.
DataAppender	getDataAppender() Get data appender.
DataSplitter	getDataSplitter() Get data splitter.
DataSet	getTestDataSet() Get test data set.
DataSet	getTrainDataSet() Get train data set.
DataSet	getValidDataSet() Get valid data set.
void	loadDataModel() Load data model.
void	saveDataModel() Save data model.

Methods inherited from class net.librec.conf.Configured

getConf, setConf

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.librec.data.DataModel

getDatetimeDataSet, getItemMappingData, getUserMappingData

Field Detail

LOG

protected final org.apache.commons.logging.Log LOG

LOG

context

protected DataContext context

context

trainDataSet

protected DataSet trainDataSet

train DataSet

testDataSet

protected DataSet testDataSet

test DataSet

validDataSet

protected DataSet validDataSet

valid DataSet

dataConvertor

protected DataConvertor dataConvertor

The convertor of the model DataConvertor

dataSplitter

public DataSplitter dataSplitter

Data Splitter DataSplitter

dataAppender

public DataAppender dataAppender

Data Splitter DataAppender

Constructor Detail

AbstractDataModel

public AbstractDataModel()

Method Detail

buildConvert

protected abstract void buildConvert()
                              throws LibrecException

Build Convert.

Throws:

LibrecException - if error occurs when building convert.

buildSplitter

protected void buildSplitter()
                      throws LibrecException

Build Splitter.

Throws:

LibrecException - if error occurs when building splitter.

buildFeature

protected void buildFeature()
                     throws LibrecException

Build appender data.

Throws:

LibrecException - if error occurs when building appender.

buildDataModel

public void buildDataModel()
                    throws LibrecException

Build data model.

Specified by:

buildDataModel in interface DataModel

Throws:

LibrecException - if error occurs when building model.

loadDataModel

public void loadDataModel()
                   throws LibrecException

Load data model.

Specified by:

loadDataModel in interface DataModel

Throws:

LibrecException - if error occurs during loading

saveDataModel

public void saveDataModel()
                   throws LibrecException

Save data model.

Specified by:

saveDataModel in interface DataModel

Throws:

LibrecException - if error occurs during saving

getTrainDataSet

public DataSet getTrainDataSet()

Get train data set.

Specified by:

getTrainDataSet in interface DataModel

Returns:

the train data set of data model.

getTestDataSet

public DataSet getTestDataSet()

Get test data set.

Specified by:

getTestDataSet in interface DataModel

Returns:

the test data set of data model.

getValidDataSet

public DataSet getValidDataSet()

Get valid data set.

Specified by:

getValidDataSet in interface DataModel

Returns:

the valid data set of data model.

getDataSplitter

public DataSplitter getDataSplitter()

Get data splitter.

Specified by:

getDataSplitter in interface DataModel

Returns:

the splitter of data model.

getDataAppender

public DataAppender getDataAppender()

Get data appender.

Specified by:

getDataAppender in interface DataModel

Returns:

the appender of data model.

getContext

public DataContext getContext()

Get data context.

Specified by:

getContext in interface DataModel

Returns:

the context see DataContext.