com.neurosys.etl.common.transformers

Class RegexExtractorTransformer

java.lang.Object

com.neurosys.etl.common.transformers.RegexExtractorTransformer

All Implemented Interfaces:

FunctionTransformer, Function, org.apache.commons.collections.Transformer

public class RegexExtractorTransformer
extends Object
implements FunctionTransformer

Extract first matching RegEx String

Author:

Arjun Dhar

Constructor Summary

Constructors

Constructor and Description
RegexExtractorTransformer()

Method Summary

Modifier and Type	Method and Description
protected String	extract(Matcher matcher)
Integer	getGroupIndex() If specified its the index in Matcher.group(int)
Pattern	getRegex() RegEx matching Pattern to extract
boolean	isAcceptNulls() If true then; a non matching sequence can return null else it will throw an IllegalArgumentException
void	setAcceptNulls(boolean acceptNulls) If true then; a non matching sequence can return null else it will throw an IllegalArgumentException
void	setGroupIndex(Integer groupIndex) If specified its the index in Matcher.group(int)
void	setRegex(Pattern regex) RegEx matching Pattern to extract
Object	transform(Object input)

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.neurosys.etl.common.transformers.FunctionTransformer

apply

Methods inherited from interface java.util.function.Function

andThen, compose, identity

Constructor Detail

RegexExtractorTransformer

public RegexExtractorTransformer()

Method Detail

getRegex

public Pattern getRegex()

RegEx matching Pattern to extract

setRegex

public void setRegex(Pattern regex)

RegEx matching Pattern to extract

isAcceptNulls

public boolean isAcceptNulls()

If true then; a non matching sequence can return null else it will throw an IllegalArgumentException

setAcceptNulls

public void setAcceptNulls(boolean acceptNulls)

If true then; a non matching sequence can return null else it will throw an IllegalArgumentException

extract

protected String extract(Matcher matcher)

transform

public Object transform(Object input)

Specified by:

transform in interface org.apache.commons.collections.Transformer

getGroupIndex

public Integer getGroupIndex()

If specified its the index in Matcher.group(int)

Can be null:

true

Default value:

true

setGroupIndex

public void setGroupIndex(Integer groupIndex)

If specified its the index in Matcher.group(int)

Can be null:

true

Default value:

true