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

UDFRegExpExtract()

Method Summary

String	evaluate(String s, String regex)
String	evaluate(String s, String regex, Integer extractIndex)

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

getRequiredFiles, getRequiredJars, getResolver, setResolver

Methods inherited from class java.lang.Object

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

Constructor Detail

UDFRegExpExtract

public UDFRegExpExtract()

Method Detail

evaluate

public String evaluate(String s,
                       String regex,
                       Integer extractIndex)

evaluate

public String evaluate(String s,
                       String regex)