org.apache.hadoop.hive.ql.udf

Class UDFRegExpExtract

java.lang.Object

org.apache.hadoop.hive.ql.exec.UDF

org.apache.hadoop.hive.ql.udf.UDFRegExpExtract

public class UDFRegExpExtract
extends UDF

UDF to extract a specific group identified by a java regex. Note that if a regexp has a backslash ('\'), then need to specify '\\' For example, regexp_extract('100-200', '(\\d+)-(\\d+)', 1) will return '100'

Constructor Summary

Constructors

Constructor and Description
UDFRegExpExtract()

Method Summary

Modifier and Type	Method and Description
java.lang.String	evaluate(java.lang.String s, java.lang.String regex)
java.lang.String	evaluate(java.lang.String s, java.lang.String regex, java.lang.Integer extractIndex)

Methods inherited from class org.apache.hadoop.hive.ql.exec.UDF

getRequiredFiles, getRequiredJars, getResolver, setResolver

Methods inherited from class java.lang.Object

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

Constructor Detail

UDFRegExpExtract

public UDFRegExpExtract()

Method Detail

evaluate

public java.lang.String evaluate(java.lang.String s,
                                 java.lang.String regex,
                                 java.lang.Integer extractIndex)

evaluate

public java.lang.String evaluate(java.lang.String s,
                                 java.lang.String regex)