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

java.lang.Object
  extended by org.apache.hadoop.hive.ql.exec.UDF
      extended by org.apache.hadoop.hive.ql.udf.UDFBaseCompare
          extended by org.apache.hadoop.hive.ql.udf.UDFOPEqual

public class UDFOPEqual
extends UDFBaseCompare

The reason that we list evaluate methods with all numeric types is for better performance; otherwise a single method that takes (Number a, Number b) and use a.doubleValue() == b.doubleValue() is enough.


Constructor Summary
UDFOPEqual()
           
 
Method Summary
 org.apache.hadoop.io.BooleanWritable evaluate(ByteWritable a, ByteWritable b)
           
 org.apache.hadoop.io.BooleanWritable evaluate(DoubleWritable a, DoubleWritable b)
           
 org.apache.hadoop.io.BooleanWritable evaluate(org.apache.hadoop.io.FloatWritable a, org.apache.hadoop.io.FloatWritable b)
           
 org.apache.hadoop.io.BooleanWritable evaluate(org.apache.hadoop.io.IntWritable a, org.apache.hadoop.io.IntWritable b)
           
 org.apache.hadoop.io.BooleanWritable evaluate(org.apache.hadoop.io.LongWritable a, org.apache.hadoop.io.LongWritable b)
           
 org.apache.hadoop.io.BooleanWritable evaluate(ShortWritable a, ShortWritable b)
           
 org.apache.hadoop.io.BooleanWritable evaluate(org.apache.hadoop.io.Text a, org.apache.hadoop.io.Text b)
           
 
Methods inherited from class org.apache.hadoop.hive.ql.exec.UDF
getResolver, setResolver
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

UDFOPEqual

public UDFOPEqual()
Method Detail

evaluate

public org.apache.hadoop.io.BooleanWritable evaluate(org.apache.hadoop.io.Text a,
                                                     org.apache.hadoop.io.Text b)

evaluate

public org.apache.hadoop.io.BooleanWritable evaluate(ByteWritable a,
                                                     ByteWritable b)

evaluate

public org.apache.hadoop.io.BooleanWritable evaluate(ShortWritable a,
                                                     ShortWritable b)

evaluate

public org.apache.hadoop.io.BooleanWritable evaluate(org.apache.hadoop.io.IntWritable a,
                                                     org.apache.hadoop.io.IntWritable b)

evaluate

public org.apache.hadoop.io.BooleanWritable evaluate(org.apache.hadoop.io.LongWritable a,
                                                     org.apache.hadoop.io.LongWritable b)

evaluate

public org.apache.hadoop.io.BooleanWritable evaluate(org.apache.hadoop.io.FloatWritable a,
                                                     org.apache.hadoop.io.FloatWritable b)

evaluate

public org.apache.hadoop.io.BooleanWritable evaluate(DoubleWritable a,
                                                     DoubleWritable b)
Specified by:
evaluate in class UDFBaseCompare


Copyright © 2010 The Apache Software Foundation