org.apache.hadoop.hive.ql.udf.generic
Class GenericUDFOPPlus

java.lang.Object
  org.apache.hadoop.hive.ql.udf.generic.GenericUDF
      org.apache.hadoop.hive.ql.udf.generic.GenericUDFBaseNumeric
          org.apache.hadoop.hive.ql.udf.generic.GenericUDFOPPlus

All Implemented Interfaces:

Closeable

public class GenericUDFOPPlus
extends GenericUDFBaseNumeric

The reason that we list evaluate methods with all numeric types is for both better performance and type checking (so we know int + int is still an int instead of a double); otherwise a single method that takes (Number a, Number b) and use a.doubleValue() == b.doubleValue() is enough. The case of int + double will be handled by implicit type casting using UDFRegistry.implicitConvertable method.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.hive.ql.udf.generic.GenericUDF

GenericUDF.DeferredJavaObject, GenericUDF.DeferredObject

Constructor Summary

GenericUDFOPPlus()

Method Summary

Methods inherited from class org.apache.hadoop.hive.ql.udf.generic.GenericUDFBaseNumeric

copyToNewInstance, evaluate, getDisplayString, initialize

Methods inherited from class org.apache.hadoop.hive.ql.udf.generic.GenericUDF

close, configure, flip, getRequiredFiles, getRequiredJars, getUdfName, initializeAndFoldConstants

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GenericUDFOPPlus

public GenericUDFOPPlus()