vclassregistry.h File Reference

#include "vstring.h"

Go to the source code of this file.

Classes
class	VClassRegistry
	VClassRegistry provides a mechanism for instantiating objects dynamically at runtime based on class IDs. More...
class	VClassFactory
	VClassFactory is the abstract base class that you subclass to provide a method that instantiates a particular type of object. More...
Defines
#define	DEFINE_CLASSFACTORY(classname, factoryname)
	DEFINE_CLASSFACTORY is a macro that you should use to define a VClassFactory subclass for a given class.
#define	DECLARE_CLASSFACTORY(classname, factoryname)   factoryname factoryname::gFactory(#classname)
	DECLARE_CLASSFACTORY is a macro that lets you declare a VClassFactory subclass, typically in your implementation file.
Typedefs
typedef std::vector< const VClassFactory * >	VClassFactoryPtrVector
	A vector of pointers to VClassFactory objects.

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Detailed Description

Definition in file vclassregistry.h.

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Define Documentation

#define DEFINE_CLASSFACTORY	(		classname,
			factoryname
	)

Value:

class factoryname : public VClassFactory { \
    public: \
 \
        static factoryname gFactory; \
 \
        factoryname(const VString& classID) \
            : VClassFactory(classID) \
            { \
            VClassRegistry::registry()->registerClass(this); \
        } \
 \
        virtual ~factoryname() {} \
 \
        virtual void* instantiateObject() const { return new classname(); } \
 \
}

DEFINE_CLASSFACTORY is a macro that you should use to define a VClassFactory subclass for a given class.

The definition of such a class is boilerplate, and this macro defines it correctly. Typically, you'll say something like:

• DEFINE_CLASSFACTORY(Foo, FooFactory);

Definition at line 212 of file vclassregistry.h.

#define DECLARE_CLASSFACTORY	(		classname,
			factoryname
	)		factoryname factoryname::gFactory(#classname)

DECLARE_CLASSFACTORY is a macro that lets you declare a VClassFactory subclass, typically in your implementation file.

Typically, you'll say something like:

• DECLARE_CLASSFACTORY(Foo, FooFactory);

Definition at line 237 of file vclassregistry.h.