org.hibernate.dialect.function
Class ClassicAvgFunction

java.lang.Object
  extended by org.hibernate.dialect.function.StandardSQLFunction
      extended by org.hibernate.dialect.function.ClassicAvgFunction
All Implemented Interfaces:
SQLFunction

public class ClassicAvgFunction
extends StandardSQLFunction

Classic AVG sqlfunction that return types as it was done in Hibernate 3.1

Author:
Max Rydahl Andersen

Constructor Summary
ClassicAvgFunction()
           
 
Method Summary
 Type getReturnType(Type columnType, Mapping mapping)
          The return type of the function.
 
Methods inherited from class org.hibernate.dialect.function.StandardSQLFunction
getName, getType, hasArguments, hasParenthesesIfNoArguments, render, toString
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

ClassicAvgFunction

public ClassicAvgFunction()
Method Detail

getReturnType

public Type getReturnType(Type columnType,
                          Mapping mapping)
                   throws QueryException
Description copied from class: StandardSQLFunction
The return type of the function. May be either a concrete type which is preset, or variable depending upon the type of the first function argument.

Note, the 'firstArgumentType' parameter should match the one passed into SQLFunction.render(org.hibernate.type.Type, java.util.List, org.hibernate.engine.SessionFactoryImplementor)

Specified by:
getReturnType in interface SQLFunction
Overrides:
getReturnType in class StandardSQLFunction
Parameters:
columnType - The type of the first argument
mapping - The mapping source.
Returns:
The type to be expected as a return.
Throws:
QueryException - Indicates an issue resolving the return type.


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