org.apache.hadoop.hive.ql.udf
Class UDFMonth

java.lang.Object
  org.apache.hadoop.hive.ql.exec.UDF
      org.apache.hadoop.hive.ql.udf.UDFMonth

public class UDFMonth
extends UDF

UDFMonth.

Constructor Summary

UDFMonth()

Method Summary

org.apache.hadoop.io.IntWritable	evaluate(DateWritable d)
org.apache.hadoop.io.IntWritable	evaluate(org.apache.hadoop.io.Text dateString) Get the month from a date string.
org.apache.hadoop.io.IntWritable	evaluate(TimestampWritable t)

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

UDFMonth

public UDFMonth()

Method Detail

evaluate

public org.apache.hadoop.io.IntWritable evaluate(org.apache.hadoop.io.Text dateString)

Get the month from a date string.

Parameters:

dateString - the dateString in the format of "yyyy-MM-dd HH:mm:ss" or "yyyy-MM-dd".

Returns:

an int from 1 to 12. null if the dateString is not a valid date string.

evaluate

public org.apache.hadoop.io.IntWritable evaluate(DateWritable d)

evaluate

public org.apache.hadoop.io.IntWritable evaluate(TimestampWritable t)