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Public Member Functions | Protected Member Functions

KGenericFactory< Product, ParentType > Class Template Reference

This template provides a generic implementation of a KLibFactory , for use with shared library components. More...

#include <kgenericfactory.h>

Inheritance diagram for KGenericFactory< Product, ParentType >:
KLibFactory TQObject

List of all members.

Public Member Functions

 KGenericFactory (const char *instanceName=0)
 KGenericFactory (const TDEAboutData *data)

Protected Member Functions

virtual TQObject * createObject (TQObject *parent, const char *name, const char *className, const TQStringList &args)

Detailed Description

template<class Product, class ParentType = TQObject>
class KGenericFactory< Product, ParentType >

This template provides a generic implementation of a KLibFactory , for use with shared library components.

It implements the pure virtual createObject method of KLibFactory and instantiates objects of the specified class (template argument) when the class name argument of createObject matches a class name in the given hierarchy.

In case you are developing a KParts component, skip this file and go directly to KParts::GenericFactory .

Note that the class specified as template argument needs to provide a certain constructor:

  • If the class is derived from TQObject then it needs to have a constructor like: MyClass( TQObject *parent, const char *name, const TQStringList &args );
  • If the class is derived from TQWidget then it needs to have a constructor like: MyWidget( TQWidget *parent, const char *name, const TQStringList &args);
  • If the class is derived from KParts::Part then it needs to have a constructor like: MyPart( TQWidget *parentWidget, const char *widgetName, TQObject *parent, const char *name, const TQStringList &args );

The args TQStringList passed to the constructor is the args string list that the caller passed to KLibFactory's create method.

In addition upon instantiation this template provides a central TDEInstance object for your component, accessible through the static instance() method. The instanceName argument of the KGenericFactory constructor is passed to the TDEInstance object.

The creation of the TDEInstance object can be customized by inheriting from this template class and re-implementing the virtual createInstance method. For example it could look like this:

     TDEInstance *MyFactory::createInstance()
     {
         return new TDEInstance( myAboutData );
     }

Example of usage of the whole template:

     class MyPlugin : public KParts::Plugin
     {
         Q_ OBJECT
     public:
         MyPlugin( TQObject *parent, const char *name,
                   const TQStringList &args );
         ...
     };

     K_EXPORT_COMPONENT_FACTORY( libmyplugin, KGenericFactory&lt;MyPlugin&gt; )

Definition at line 173 of file kgenericfactory.h.


Constructor & Destructor Documentation

template<class Product , class ParentType = TQObject>
KGenericFactory< Product, ParentType >::KGenericFactory ( const TDEAboutData *  data  )  [inline]
Since:
3.3

Definition at line 183 of file kgenericfactory.h.


The documentation for this class was generated from the following file:
  • kgenericfactory.h

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