de.lmu.ifi.dbs.elki.utilities.optionhandling.parameters

Class PatternParameter

java.lang.Object

de.lmu.ifi.dbs.elki.utilities.optionhandling.parameters.AbstractParameter<PatternParameter,java.util.regex.Pattern>

de.lmu.ifi.dbs.elki.utilities.optionhandling.parameters.PatternParameter

All Implemented Interfaces:

Parameter<java.util.regex.Pattern>

public class PatternParameter
extends AbstractParameter<PatternParameter,java.util.regex.Pattern>

Parameter class for a parameter specifying a pattern.

Since:

0.3

Author:

Steffi Wanka, Erich Schubert

Field Summary

Fields inherited from class de.lmu.ifi.dbs.elki.utilities.optionhandling.parameters.AbstractParameter

constraints, defaultValue, givenValue, optionalParameter, optionid, shortDescription

Constructor Summary

Constructors

Constructor and Description
PatternParameter(OptionID optionID) Constructs a pattern parameter with the given optionID.
PatternParameter(OptionID optionID, java.util.regex.Pattern defaultValue) Constructs a pattern parameter with the given optionID, and default value.
PatternParameter(OptionID optionID, java.lang.String defaultValue) Constructs a pattern parameter with the given optionID, and default value.

Method Summary

Modifier and Type	Method and Description
java.lang.String	getSyntax() Returns a string representation of the parameter's type.
java.lang.String	getValueAsString() Get the value as string.
protected java.util.regex.Pattern	parseValue(java.lang.Object obj) Parse a given value into the destination type.

Methods inherited from class de.lmu.ifi.dbs.elki.utilities.optionhandling.parameters.AbstractParameter

addConstraint, describeValues, getConstraints, getDefaultValue, getDefaultValueAsString, getOptionID, getShortDescription, getValue, hasDefaultValue, isDefined, isOptional, isValid, setDefaultValue, setOptional, setShortDescription, setValue, setValueInternal, tookDefaultValue, tryDefaultValue, validate

Methods inherited from class java.lang.Object

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

Constructor Detail

PatternParameter

public PatternParameter(OptionID optionID,
                        java.util.regex.Pattern defaultValue)

Constructs a pattern parameter with the given optionID, and default value.

Parameters:

optionID - the unique id of the parameter

defaultValue - the default value of the parameter

PatternParameter

public PatternParameter(OptionID optionID,
                        java.lang.String defaultValue)

Constructs a pattern parameter with the given optionID, and default value.

Parameters:

optionID - the unique id of the parameter

defaultValue - the default value of the parameter

PatternParameter

public PatternParameter(OptionID optionID)

Constructs a pattern parameter with the given optionID.

Parameters:

optionID - the unique id of the parameter

Method Detail

getValueAsString

public java.lang.String getValueAsString()

Description copied from interface: Parameter

Get the value as string. May return null

Specified by:

getValueAsString in interface Parameter<java.util.regex.Pattern>

Specified by:

getValueAsString in class AbstractParameter<PatternParameter,java.util.regex.Pattern>

Returns:

Value as string

parseValue

protected java.util.regex.Pattern parseValue(java.lang.Object obj)
                                      throws ParameterException

Description copied from class: AbstractParameter

Parse a given value into the destination type.

Specified by:

parseValue in class AbstractParameter<PatternParameter,java.util.regex.Pattern>

Parameters:

obj - Object to parse (may be a string representation!)

Returns:

Parsed object

Throws:

ParameterException - when the object cannot be parsed.

getSyntax

public java.lang.String getSyntax()

Returns a string representation of the parameter's type.

Specified by:

getSyntax in interface Parameter<java.util.regex.Pattern>

Specified by:

getSyntax in class AbstractParameter<PatternParameter,java.util.regex.Pattern>

Returns:

"<pattern>"