Package org.pentaho.dm.commons

Class ArffMeta

java.lang.Object

org.pentaho.dm.commons.ArffMeta

All Implemented Interfaces:

Cloneable

public class ArffMeta
extends Object
implements Cloneable

Contains the meta data for one field being converted to ARFF

Version:

$Revision: 1.0 $

Author:

Mark Hall (mhall{[at]}pentaho{[dot]}org)

Field Summary

Fields

Modifier and Type	Field	Description
static final int	DATE
static final int	NOMINAL
static final int	NUMERIC
static final int	STRING
static final String	XML_TAG

Constructor Summary

Constructors

Constructor	Description
ArffMeta(String fieldName, int kettleType, int arffType)	Constructor
ArffMeta(org.pentaho.di.repository.Repository rep, org.pentaho.di.repository.ObjectId id_step, int nr)	Construct using data stored in repository
ArffMeta(Node arffNode)	Construct from an XML node

Method Summary

Modifier and Type	Method	Description
Object	clone()	Make a copy
int	getArffType()	Get the ARFF data type
String	getDateFormat()
String	getFieldName()	Get the name of this field
int	getKettleType()	Get the Kettle data type (as defined in ValueMetaInterface)
String	getNominalVals()	Get a comma-separated list of legal values for a nominal attribute
String	getXML()	Get the XML representation of this field
void	saveRep(org.pentaho.di.repository.Repository rep, org.pentaho.di.repository.ObjectId id_transformation, org.pentaho.di.repository.ObjectId id_step, int nr)	Save this ArffMeta to a repository
void	setDateFormat(String dateFormat)
void	setNominalVals(String vals)	Set a comma-separated list of legal values for a nominal attribute
static List<String>	stringToVals(String vals)

Methods inherited from class java.lang.Object

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

Field Details

NUMERIC

public static final int NUMERIC

See Also:

• Constant Field Values

NOMINAL

public static final int NOMINAL

See Also:

• Constant Field Values

DATE

public static final int DATE

See Also:

• Constant Field Values

STRING

public static final int STRING

See Also:

• Constant Field Values

XML_TAG

public static final String XML_TAG

See Also:

• Constant Field Values

Constructor Details

ArffMeta

public ArffMeta(String fieldName,
 int kettleType,
 int arffType)

Constructor

Parameters:

fieldName - the name of this field

kettleType - the Kettle data type

arffType - the ARFF data type

ArffMeta

public ArffMeta(org.pentaho.di.repository.Repository rep,
 org.pentaho.di.repository.ObjectId id_step,
 int nr)
         throws org.pentaho.di.core.exception.KettleException

Construct using data stored in repository

Parameters:

rep - the repository

id_step - the id of the step

nr - the step number

Throws:

org.pentaho.di.core.exception.KettleException - if an error occurs

ArffMeta

public ArffMeta(Node arffNode)

Construct from an XML node

Parameters:

uniNode - a XML node

Method Details

getFieldName

public String getFieldName()

Get the name of this field

Returns:

the name of the field

getKettleType

public int getKettleType()

Get the Kettle data type (as defined in ValueMetaInterface)

Returns:

the Kettle data type of this field

getArffType

public int getArffType()

Get the ARFF data type

Returns:

the ARFF data type of this field

setDateFormat

public void setDateFormat(String dateFormat)

getDateFormat

public String getDateFormat()

setNominalVals

public void setNominalVals(String vals)

Set a comma-separated list of legal values for a nominal attribute

Parameters:

vals - the legal values

getNominalVals

public String getNominalVals()

Get a comma-separated list of legal values for a nominal attribute

Returns:

the legal values

clone

public Object clone()

Make a copy

Overrides:

clone in class Object

Returns:

a copy of this UnivariateStatsMetaFunction.

getXML

public String getXML()

Get the XML representation of this field

Returns:

a String value

saveRep

public void saveRep(org.pentaho.di.repository.Repository rep,
 org.pentaho.di.repository.ObjectId id_transformation,
 org.pentaho.di.repository.ObjectId id_step,
 int nr)
             throws org.pentaho.di.core.exception.KettleException

Save this ArffMeta to a repository

Parameters:

rep - the repository to save to

id_transformation - the transformation id

id_step - the step id

nr - the step number

Throws:

org.pentaho.di.core.exception.KettleException - if an error occurs

stringToVals

public static List<String> stringToVals(String vals)