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

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

public class UDFToLong
extends UDF

UDFToLong.

Constructor Summary

UDFToLong()

Method Summary

LongWritable	evaluate(BigDecimalWritable i)
LongWritable	evaluate(BooleanWritable i) Convert from boolean to a long.
LongWritable	evaluate(ByteWritable i) Convert from byte to a long.
LongWritable	evaluate(DoubleWritable i) Convert from double to a long.
LongWritable	evaluate(FloatWritable i) Convert from float to a long.
LongWritable	evaluate(IntWritable i) Convert from integer to a long.
LongWritable	evaluate(LongWritable i) Convert from long to a long.
LongWritable	evaluate(NullWritable i) Convert from void to a long.
LongWritable	evaluate(ShortWritable i) Convert from short to a long.
LongWritable	evaluate(Text i) Convert from string to a long.
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

UDFToLong

public UDFToLong()

Method Detail

evaluate

public LongWritable evaluate(NullWritable i)

Convert from void to a long. This is called for CAST(... AS BIGINT)

Parameters:

i - The void value to convert

Returns:

LongWritable

evaluate

public LongWritable evaluate(BooleanWritable i)

Convert from boolean to a long. This is called for CAST(... AS BIGINT)

Parameters:

i - The boolean value to convert

Returns:

LongWritable

evaluate

public LongWritable evaluate(ByteWritable i)

Convert from byte to a long. This is called for CAST(... AS BIGINT)

Parameters:

i - The byte value to convert

Returns:

LongWritable

evaluate

public LongWritable evaluate(ShortWritable i)

Convert from short to a long. This is called for CAST(... AS BIGINT)

Parameters:

i - The short value to convert

Returns:

LongWritable

evaluate

public LongWritable evaluate(IntWritable i)

Convert from integer to a long. This is called for CAST(... AS BIGINT)

Parameters:

i - The integer value to convert

Returns:

LongWritable

evaluate

public LongWritable evaluate(LongWritable i)

Convert from long to a long. This is called for CAST(... AS BIGINT)

Parameters:

i - The long value to convert

Returns:

LongWritable

evaluate

public LongWritable evaluate(FloatWritable i)

Convert from float to a long. This is called for CAST(... AS BIGINT)

Parameters:

i - The float value to convert

Returns:

LongWritable

evaluate

public LongWritable evaluate(DoubleWritable i)

Convert from double to a long. This is called for CAST(... AS BIGINT)

Parameters:

i - The double value to convert

Returns:

LongWritable

evaluate

public LongWritable evaluate(Text i)

Convert from string to a long. This is called for CAST(... AS BIGINT)

Parameters:

i - The string value to convert

Returns:

LongWritable

evaluate

public LongWritable evaluate(TimestampWritable i)

evaluate

public LongWritable evaluate(BigDecimalWritable i)