AbstractBuilder Class Reference

Abstract base class of all Builders. More...

#include <keyvalue/mngt/AbstractBuilder.h>

Inheritance diagram for AbstractBuilder:

List of all members.

Public Member Functions
template<typename ObjectType >
bool	canBuild () const
	Checks if the Builder can build objects of a given type.
virtual const ::std::type_info &	getObjectType () const =0
	Gets Builder's ObjectType.
virtual const char *	getName () const =0
	Gets Processor's name.
Private Member Functions
virtual void	thrower () const =0
	Throws a pointer defining the object built by the concrete Builder.

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Detailed Description

Abstract base class of all Builders.

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Member Function Documentation

bool canBuild

(

)

const

Checks if the Builder can build objects of a given type.

Parameters:

ObjectType

: (template parameter) The type to be checked against.

Returns:

This method returns true if the Builder can build objects of type ObjectType.

virtual const ::std::type_info& getObjectType

(

)

const [pure virtual]

Gets Builder's ObjectType.

Returns:

std::type_info of Builder<span>'s ObjectType.

Implemented in Builder< Tag >.

virtual void thrower

(

)

const [private, pure virtual]

Throws a pointer defining the object built by the concrete Builder.

This method is a helper to canBuild(). Recall that each concrete Builder builds a different type of object. Therefore, concrete Builders must implement this method which just throws a (null) pointer of type ObjectType* where ObjectType is the type of object that the Builder can build.

The idea is the same used in util::AnyPtr to cast its internal pointer as explained in

Neri, C, "Twisting the RTTI System for Safe Dynamic Casts of void* in C++", Dr.Dobb's Journal, April 05, 2011. http://drdobbs.com/cpp/229401004

Exceptions:

\e

ObjectType* : Always throws.

virtual const char* getName

(

)

const [pure virtual, inherited]

Gets Processor's name.

Returns:

The name.

Implemented in Builder< Tag >, and Calculator< Tag >.