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

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

public class UDFUnixTimeStamp
extends UDF

UDFUnixTimeStamp.

Constructor Summary

UDFUnixTimeStamp()

Method Summary

LongWritable	evaluate() Return current UnixTime.
LongWritable	evaluate(Text dateText) Convert time string to UnixTime.
LongWritable	evaluate(Text dateText, Text patternText) Convert time string to UnixTime with user defined pattern.
LongWritable	evaluate(TimestampWritable i)

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

UDFUnixTimeStamp

public UDFUnixTimeStamp()

Method Detail

evaluate

public LongWritable evaluate()

Return current UnixTime.

Returns:

long Number of seconds from 1970-01-01 00:00:00

evaluate

public LongWritable evaluate(Text dateText)

Convert time string to UnixTime.

Parameters:

dateText - Time string in format yyyy-MM-dd HH:mm:ss

Returns:

long Number of seconds from 1970-01-01 00:00:00

evaluate

public LongWritable evaluate(Text dateText,
                             Text patternText)

Convert time string to UnixTime with user defined pattern.

Parameters:

dateText - Time string in format patternstring

patternText - Time patterns string supported by SimpleDateFormat

Returns:

long Number of seconds from 1970-01-01 00:00:00

evaluate

public LongWritable evaluate(TimestampWritable i)