org.apache.hadoop.hive.ql.udf

Class UDFToFloat

java.lang.Object

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

org.apache.hadoop.hive.ql.udf.UDFToFloat

public class UDFToFloat
extends UDF

UDFToFloat.

Constructor Summary

Constructors

Constructor and Description
UDFToFloat()

Method Summary

Modifier and Type	Method and Description
org.apache.hadoop.io.FloatWritable	evaluate(org.apache.hadoop.io.BooleanWritable i) Convert from boolean to a float.
org.apache.hadoop.io.FloatWritable	evaluate(ByteWritable i) Convert from byte to a float.
org.apache.hadoop.io.FloatWritable	evaluate(DoubleWritable i) Convert from double to a float.
org.apache.hadoop.io.FloatWritable	evaluate(org.apache.hadoop.hive.serde2.io.HiveDecimalWritable i)
org.apache.hadoop.io.FloatWritable	evaluate(org.apache.hadoop.io.IntWritable i) Convert from integer to a float.
org.apache.hadoop.io.FloatWritable	evaluate(org.apache.hadoop.io.LongWritable i) Convert from long to a float.
org.apache.hadoop.io.FloatWritable	evaluate(org.apache.hadoop.io.NullWritable i) Convert from void to a float.
org.apache.hadoop.io.FloatWritable	evaluate(ShortWritable i) Convert from short to a float.
org.apache.hadoop.io.FloatWritable	evaluate(org.apache.hadoop.io.Text i) Convert from string to a float.
org.apache.hadoop.io.FloatWritable	evaluate(TimestampWritableV2 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

UDFToFloat

public UDFToFloat()

Method Detail

evaluate

public org.apache.hadoop.io.FloatWritable evaluate(org.apache.hadoop.io.NullWritable i)

Convert from void to a float. This is called for CAST(... AS FLOAT)

Parameters:

i - The void value to convert

Returns:

FloatWritable

evaluate

public org.apache.hadoop.io.FloatWritable evaluate(org.apache.hadoop.io.BooleanWritable i)

Convert from boolean to a float. This is called for CAST(... AS FLOAT)

Parameters:

i - The boolean value to convert

Returns:

FloatWritable

evaluate

public org.apache.hadoop.io.FloatWritable evaluate(ByteWritable i)

Convert from byte to a float. This is called for CAST(... AS FLOAT)

Parameters:

i - The byte value to convert

Returns:

FloatWritable

evaluate

public org.apache.hadoop.io.FloatWritable evaluate(ShortWritable i)

Convert from short to a float. This is called for CAST(... AS FLOAT)

Parameters:

i - The short value to convert

Returns:

FloatWritable

evaluate

public org.apache.hadoop.io.FloatWritable evaluate(org.apache.hadoop.io.IntWritable i)

Convert from integer to a float. This is called for CAST(... AS FLOAT)

Parameters:

i - The integer value to convert

Returns:

FloatWritable

evaluate

public org.apache.hadoop.io.FloatWritable evaluate(org.apache.hadoop.io.LongWritable i)

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

Parameters:

i - The long value to convert

Returns:

FloatWritable

evaluate

public org.apache.hadoop.io.FloatWritable evaluate(DoubleWritable i)

Convert from double to a float. This is called for CAST(... AS FLOAT)

Parameters:

i - The double value to convert

Returns:

FloatWritable

evaluate

public org.apache.hadoop.io.FloatWritable evaluate(org.apache.hadoop.io.Text i)

Convert from string to a float. This is called for CAST(... AS FLOAT)

Parameters:

i - The string value to convert

Returns:

FloatWritable

evaluate

public org.apache.hadoop.io.FloatWritable evaluate(TimestampWritableV2 i)

evaluate

public org.apache.hadoop.io.FloatWritable evaluate(org.apache.hadoop.hive.serde2.io.HiveDecimalWritable i)