org.outerj.grouping.functions
Class GroupingFunctionFactory

java.lang.Object
  org.outerj.grouping.functions.GroupingFunctionFactory

All Implemented Interfaces:

FunctionFactory

public class GroupingFunctionFactory

extends java.lang.Object

implements FunctionFactory

An implementation of FunctionFactory supporting the summary functions. Other functions are delegated to the FunctionFactory passed in the constructor.

Field Summary

protected FunctionFactory	delegateFunctionFactory
protected static java.util.HashMap	summaryFunctions

Constructor Summary

GroupingFunctionFactory(FunctionFactory delegateFunctionFactory)

Method Summary

Expression

createFunction(java.lang.String name) Returns null if there is no expression with the given name.

Methods inherited from class java.lang.Object

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

Field Detail

delegateFunctionFactory

protected FunctionFactory delegateFunctionFactory

summaryFunctions

protected static java.util.HashMap summaryFunctions

Constructor Detail

GroupingFunctionFactory

public GroupingFunctionFactory(FunctionFactory delegateFunctionFactory)

Method Detail

createFunction

public Expression createFunction(java.lang.String name)
                          throws java.lang.Exception

Description copied from interface: FunctionFactory

Returns null if there is no expression with the given name.

Specified by:

createFunction in interface FunctionFactory

Throws:

java.lang.Exception