Package org.tribuo.data.columnar.processors.field

Class RegexFieldProcessor

java.lang.Object

org.tribuo.data.columnar.processors.field.RegexFieldProcessor

All Implemented Interfaces:

com.oracle.labs.mlrg.olcut.config.Configurable, com.oracle.labs.mlrg.olcut.provenance.Provenancable<com.oracle.labs.mlrg.olcut.provenance.ConfiguredObjectProvenance>, FieldProcessor

public class RegexFieldProcessor
extends Object
implements FieldProcessor

A FieldProcessor which applies a regex to a field and generates ColumnarFeatures based on the matches.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	RegexFieldProcessor.Mode	Matching mode.

Nested classes/interfaces inherited from interface org.tribuo.data.columnar.FieldProcessor

FieldProcessor.GeneratedFeatureType

Field Summary

Fields inherited from interface org.tribuo.data.columnar.FieldProcessor

NAMESPACE

Constructor Summary

Constructors

Constructor	Description
RegexFieldProcessor(String fieldName, String regex, EnumSet<RegexFieldProcessor.Mode> modes)	Constructs a field processor which emits features when the field value matches the supplied regex.
RegexFieldProcessor(String fieldName, Pattern regex, EnumSet<RegexFieldProcessor.Mode> modes)	Constructs a field processor which emits features when the field value matches the supplied regex.

Method Summary

Modifier and Type	Method	Description
RegexFieldProcessor	copy(String newFieldName)	Returns a copy of this FieldProcessor bound to the supplied newFieldName.
FieldProcessor.GeneratedFeatureType	getFeatureType()	Returns the feature type this FieldProcessor generates.
String	getFieldName()	Gets the field name this FieldProcessor uses.
com.oracle.labs.mlrg.olcut.provenance.ConfiguredObjectProvenance	getProvenance()
void	postConfig()	Used by the OLCUT configuration system, and should not be called by external code.
List<ColumnarFeature>	process(String value)	Processes the field value and generates a (possibly empty) list of ColumnarFeatures.
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.tribuo.data.columnar.FieldProcessor

getNumNamespaces

Constructor Details

RegexFieldProcessor

public RegexFieldProcessor(String fieldName,
 Pattern regex,
 EnumSet<RegexFieldProcessor.Mode> modes)

Constructs a field processor which emits features when the field value matches the supplied regex.

Parameters:

fieldName - The field name to read.

regex - The regex to use for matching.

modes - The matching mode.

RegexFieldProcessor

public RegexFieldProcessor(String fieldName,
 String regex,
 EnumSet<RegexFieldProcessor.Mode> modes)

Constructs a field processor which emits features when the field value matches the supplied regex.

The regex is compiled on construction.

Parameters:

fieldName - The field name to read.

regex - The regex to use for matching.

modes - The matching mode.

Method Details

postConfig

public void postConfig()

Used by the OLCUT configuration system, and should not be called by external code.

Specified by:

postConfig in interface com.oracle.labs.mlrg.olcut.config.Configurable

getFieldName

public String getFieldName()

Description copied from interface: FieldProcessor

Gets the field name this FieldProcessor uses.

Specified by:

getFieldName in interface FieldProcessor

Returns:

The field name.

process

public List<ColumnarFeature> process(String value)

Description copied from interface: FieldProcessor

Processes the field value and generates a (possibly empty) list of ColumnarFeatures.

Specified by:

process in interface FieldProcessor

Parameters:

value - The field value to process.

Returns:

A list of ColumnarFeatures.

getFeatureType

public FieldProcessor.GeneratedFeatureType getFeatureType()

Description copied from interface: FieldProcessor

Returns the feature type this FieldProcessor generates.

Specified by:

getFeatureType in interface FieldProcessor

Returns:

The feature type.

copy

public RegexFieldProcessor copy(String newFieldName)

Description copied from interface: FieldProcessor

Returns a copy of this FieldProcessor bound to the supplied newFieldName.

Specified by:

copy in interface FieldProcessor

Parameters:

newFieldName - The new field name for the copy.

Returns:

A copy of this FieldProcessor.

toString

public String toString()

Overrides:

toString in class Object

getProvenance

public com.oracle.labs.mlrg.olcut.provenance.ConfiguredObjectProvenance getProvenance()

Specified by:

getProvenance in interface com.oracle.labs.mlrg.olcut.provenance.Provenancable<com.oracle.labs.mlrg.olcut.provenance.ConfiguredObjectProvenance>