javacommons/utils/inc/applicationinfo.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 27 Apr 2010 16:30:29 +0300
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/*
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  ApplicationInfo is an abstract base class for API implementations,
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*                which allows getting application related static information.
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*
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*/
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#ifndef APPLICATIONINFO_H
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#define APPLICATIONINFO_H
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#include "javaosheaders.h"
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#include "javauid.h"
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/**
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 * Available in library: javautils
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 *
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 */
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namespace java
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{
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namespace runtime
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{
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class ApplicationInfo
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{
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public:
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    /**
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     * The destructor
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     */
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    OS_IMPORT virtual ~ApplicationInfo();
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    /**
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     * Returns an instance of ApplicationInfo class which provides access to
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     * application related static information.
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     * <p>
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     * Note! It is guaranteed that this service is available in MIDP
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     * runtime. Other runtimes may not provide this service.
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     *
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     * @return the ApplicationInfo object, throws java::util::ExceptionBase
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     *         if the service is not avalable.
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     */
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    OS_IMPORT static const ApplicationInfo& getInstance();
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    /**
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     * Returns the root path of the application. The root path means an
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     * application specific directory where the different API implementations
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     * are able to write their files. No other applications are able to access
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     * files under the root path.
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     * <p>
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     * API implemetations must not rely that the JAR file(s) or descriptor file
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     * can always be found from the root path, even if they sometimes might be
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     * found.
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     * @return application root path as wstring
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     */
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    virtual const std::wstring& getRootPath() const = 0;
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    /**
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     * Returns a unique application identifier.
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     *
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     * @return the Uid of the application.
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     */
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    virtual const java::util::Uid& getUid() const = 0;
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protected:
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    /**
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     * The constructor. Only derived class is allowed to construct this class.
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     */
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    OS_IMPORT ApplicationInfo();
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private: // Methods
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    /**
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     * No copy constructor allowed.
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     */
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    ApplicationInfo(const ApplicationInfo&);
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    /**
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     * No Assignment operator allowed.
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     */
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    ApplicationInfo& operator= (const ApplicationInfo&);
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};
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} // end namespace runtime
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} // end namespace java
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#endif // APPLICATIONINFO_H
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