Package weka.gui.beans

Class SubstringReplacerRules

java.lang.Object

weka.gui.beans.SubstringReplacerRules

All Implemented Interfaces:

Serializable, EnvironmentHandler

public class SubstringReplacerRules
extends Object
implements EnvironmentHandler, Serializable

Manages a list of match and replace rules for replacing values in string attributes

Version:

$Revision: 11968 $

Author:

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

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	SubstringReplacerRules.SubstringReplacerMatchRule	Inner class encapsulating the logic for matching and replacing.

Constructor Summary

Constructors

Constructor	Description
SubstringReplacerRules(String matchDetails, Instances inputStructure)	Constructor.
SubstringReplacerRules(String matchDetails, Instances inputStructure, String statusMessagePrefix, Logger log, Environment env)	Constructor

Method Summary

Modifier and Type	Method	Description
void	applyRules(Instance inst)
Instance	makeOutputInstance(Instance inputI)	Make an output instance given an input one
static List<SubstringReplacerRules.SubstringReplacerMatchRule>	matchRulesFromInternal(String matchReplaceDetails, Instances inputStructure, String statusMessagePrefix, Logger log, Environment env)	Get a list of match rules from an internally encoded match specification
void	setEnvironment(Environment env)	Set environment variables to use.

Methods inherited from class java.lang.Object

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

Constructor Details

SubstringReplacerRules

public SubstringReplacerRules(String matchDetails,
 Instances inputStructure,
 String statusMessagePrefix,
 Logger log,
 Environment env)

Constructor

Parameters:

matchDetails - the internally encoded match details string

inputStructure - the incoming instances structure

statusMessagePrefix - an optional status message prefix string for logging

log - the log to use (may be null)

env - environment variables

SubstringReplacerRules

public SubstringReplacerRules(String matchDetails,
 Instances inputStructure)

Constructor. Initializes with system-wide environment variables and uses no status message and no log.

Parameters:

matchDetails - the internally encoded match details string

inputStructure - the incoming instances structure

Method Details

setEnvironment

public void setEnvironment(Environment env)

Description copied from interface: EnvironmentHandler

Set environment variables to use.

Specified by:

setEnvironment in interface EnvironmentHandler

Parameters:

env - the environment variables to use

matchRulesFromInternal

public static List<SubstringReplacerRules.SubstringReplacerMatchRule> matchRulesFromInternal(String matchReplaceDetails,
 Instances inputStructure,
 String statusMessagePrefix,
 Logger log,
 Environment env)

Get a list of match rules from an internally encoded match specification

Parameters:

matchReplaceDetails - the internally encoded specification of the match rules

inputStructure - the input instances structure

statusMessagePrefix - an optional status message prefix for logging

log - the log to use

env - environment variables

Returns:

a list of match rules

applyRules

public void applyRules(Instance inst)

makeOutputInstance

public Instance makeOutputInstance(Instance inputI)

Make an output instance given an input one

Parameters:

inputI - the input instance to process

Returns:

the output instance with substrings replaced