/*

* Copyright (c) 2005-2006 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  The main class of Java Registy API. Java Registy API

*               can be used to query the installed Java applications

*               and their properties.

*

*/

// JAVAREGISTRY.H

#ifndef JAVAREGISTRY_H

#define JAVAREGISTRY_H

#include <e32base.h>

#include "javaregistryentrytype.h"

namespace Java

{

namespace Manager

{

namespace Registry

{

// FORWARD DECLARATION

class CWriteableJavaRegistry;

}// namespace Registry

}// namespace Manager

}// namespace Java

namespace Java

{

class CJavaRegistryEntry;

/**

 * This class provides the Platform API for JavaRegistry.

 * It allows for clients to retrieve properties of

 * Java install packages, applications, services etc.

 *

 * @lib javaregistryclient.lib

 * @since S60 v3.2

 */

class CJavaRegistry : public CBase

{

    // Constructors

public:

    /**

     * Creates a CJavaRegistry object.

     * The function may leave with one of the system-wide error codes.

     *

     * @since S60 v3.2

     * @return A pointer to a CJavaRegistry object.

     *         Caller takes over the ownership of the object being

     *         transferred.

     */

    IMPORT_C static CJavaRegistry* NewL();

    /**

     * Creates a CJavaRegistry object.

     * The function may leave with one of the system-wide error codes.

     *

     * @since S60 v3.2

     * @return A pointer to a CJavaRegistry object.

     *         Caller takes over the ownership of the object being

     *         transferred.

     */

    IMPORT_C static CJavaRegistry* NewLC();

public:

    // Generic methods

    /**

     * Returns whether registry entry with the specified Uid exists.

     * Registry entries representing entities installed on

     * removable media which are currently not present in the device

     * are considered as not existent.

     * The function may leave with one of the system-wide error codes.

     *

     * @since S60 v3.2

     * @param aUid The Uid to be checked.

     * @return ETrue if the registry entry exists, EFalse otherwise.

     */

    IMPORT_C TBool RegistryEntryExistsL(const TUid& aUid) const;

    /**

     * Returns an array of Uids of the existing registry entries.

     * Uids of registry entries representing entities installed on

     * removable media which are currently not present in the device

     * are not returned.

     * The function may leave with one of the system-wide error codes.

     *

     * @since S60 v3.2

     * @param aUids [out] Uids of the registry entries.

     */

    IMPORT_C void GetRegistryEntryUidsL(RArray<TUid>& aUids) const;

    /**

     * Returns an array of Uids of the existing registry entries.

     * Entries are searched by the specified type.

     * Uids of registry entries representing entities installed on

     * removable media which are currently not present in the device

     * are not returned.

     * The function may leave with one of the system-wide error codes.

     *

     * @since S60 v3.2

     * @param aType Type of registry entries whose Uids are to be returned.

     * @param aUids [out] Uids of the matching registry entries.

     */

    IMPORT_C void GetRegistryEntryUidsL

    (TJavaRegistryEntryType aType, RArray<TUid>& aUids) const;

    /**

     * Returns the corresponding registry entry for a given Uid.

     * The returned entry can be casted to the appropriate subclass

     * according to the type property. If type is in the package range

     * ( EGeneralPackage <= entryType < EGeneralApplication ), it can

     * be casted to CJavaRegistryPackageEntry, and if type is

     * in the application range ( EGeneralApplication <= entryType ),

     * it can be casted to CJavaRegistryApplicationEntry.

     * Registry entries representing entities installed on

     * removable media which are currently not present in the device

     * are not returned.

     * The function may leave with one of the system-wide error codes.

     *

     * @since S60 v3.2

     * @param aUid The Uid of the entry to be retrieved

     * @return The returned registry entry or null if registry entry

     *         not found. Caller takes over the ownership of the object

     *         being transferred.

     */

    IMPORT_C CJavaRegistryEntry* RegistryEntryL(const TUid& aUid) const;

    // Destructor

    /**

     * CJavaRegistry::~CJavaRegistry destructor

     *

     * @since S60 v3.2

     */

    virtual ~CJavaRegistry();

private:

    // Constructor

    /**

     * CJavaRegistry::CJavaRegistry constructor

     *

     * @since S60 v3.2

     */

    CJavaRegistry();

    // 2nd phase constructor

    /**

     * CJavaRegistry::ConstructL method

     * The function may leave with one of the system-wide error codes.

     *

     * @since S60 v3.2

     */

    void ConstructL();

private: // Data

    /**

     * CJavaRegistry::iJavaReg member

     * Pointer Owned

     * @since S60 v3.2

     */

    Java::Manager::Registry::CWriteableJavaRegistry* iJavaReg;

};

}// namespace Java

#endif // JAVAREGISTRY_H