GeometryFactory Class Reference

The abstract factory class for creating objects in the Geometry family. More...

#include <geometry.h>

Public Types
typedef Geometry *(*	GeoCreateFunc )()
	Defines a function pointer pointing to a function which creates objects in the Geometry family.

Public Member Functions
void	registerGeometry (std::string name, GeoCreateFunc func)
	Registers (links) the geometry name name with the function func for creating objects in the Geometry family. More...

Static Public Member Functions
static GeometryFactory &	instance ()
	Returns reference to a Singleton object of class GeometryFactory. More...
This function creates an object of the class linked to the Parameters [in] name the name linked to a specific class in the Geometry family via the registrerGeometry member function Returns A Geometry * pointer pointing to an object of a specific class in the Geometry family Example usage: GeometryFactory& factory = GeometryFactory::instance(); Geometry* newGeometry = factory.createGeometry(name);
Geometry *	createGeometry (std::string name)

Detailed Description

The abstract factory class for creating objects in the Geometry family.

Author

Chen, Hsin-Chiang (morri.nosp@m.sche.nosp@m.n2008.nosp@m.@gma.nosp@m.il.co.nosp@m.m)

Version

1.0

Date

2014/08/08

Created on: 2014/06/07

Member Function Documentation

GeometryFactory & GeometryFactory::instance ( )

static

Returns reference to a Singleton object of class GeometryFactory.

Parameters

None

Returns

Reference to a static object of class GeometryFactory

Example usage:

GeometryFactory& factory = GeometryFactory::instance();

Note

This function is implemented based on the lazy Singleton design pattern; therefore, only one GeometryFactory instance is allowed in each program

void GeometryFactory::registerGeometry	(	std::string	name,
		GeoCreateFunc	func
	)

Registers (links) the geometry name name with the function func for creating objects in the Geometry family.

After registration, name can be used as an argument in the createGeometry member function for creating objects of the linked type in the Geometry family

Parameters

[in]	name	the geometry name
[in]	func	the function pointer pointing to the function that creates objects of a specific type in the Geometry family

Returns

None

Note

Instead of using this function directly, consider using the GeometryRegistrar class for the purpose of linking a geometry name and a specific class in the Geometry family. The function is kept public in case one wants to use it directly

---

The documentation for this class was generated from the following files:

• geometry.h
• geometry.cpp