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61 lines
2.0 KiB
C++
61 lines
2.0 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#ifndef nsGenericFactory_h___
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#define nsGenericFactory_h___
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#include "nsIGenericFactory.h"
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/**
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* Most factories follow this simple pattern, so why not just use a function pointer
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* for most creation operations?
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*/
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class nsGenericFactory : public nsIGenericFactory {
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public:
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static const nsCID& CID() { static nsCID cid = NS_GENERICFACTORY_CID; return cid; }
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nsGenericFactory(ConstructorProcPtr constructor = NULL);
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virtual ~nsGenericFactory();
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NS_DECL_ISUPPORTS
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NS_IMETHOD CreateInstance(nsISupports *aOuter, REFNSIID aIID, void **aResult);
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NS_IMETHOD LockFactory(PRBool aLock);
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/**
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* Establishes the generic factory's constructor function, which will be called
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* by CreateInstance.
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*/
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NS_IMETHOD SetConstructor(ConstructorProcPtr constructor);
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/**
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* Establishes the generic factory's destructor function, which will be called
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* whe the generic factory is deleted. This is used to notify the DLL that
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* an instance of one of its generic factories is going away.
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*/
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NS_IMETHOD SetDestructor(DestructorProcPtr destructor);
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static NS_METHOD Create(nsISupports* outer, const nsIID& aIID, void* *aInstancePtr);
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private:
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ConstructorProcPtr mConstructor;
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DestructorProcPtr mDestructor;
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};
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#endif /* nsGenericFactory_h___ */
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