--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/imservices/searchfeatureplugin/srcsearchdatamodel/searchdatacacheimp.h	Thu Dec 17 08:54:49 2009 +0200
@@ -0,0 +1,164 @@
+/*
+* Copyright (c) 2007 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:  SEARCH data cache implementation.
+*
+*/
+
+#ifndef CSEARCHDATACACHEIMP_H
+#define CSEARCHDATACACHEIMP_H
+
+#include <ximpapiobjbase.h>
+#include "searchapiobjbase.h"
+
+#include "searchitemparent.h"
+#include "searchtypehelpers.h"
+
+
+class MXIMPHost;
+class CCSearchSubscriptionItem;
+class CXIMPIdentityImp;
+class MXIMPPscContext;
+class CXIMPSubscriptionItemBase;
+class MXIMPStatus;
+class MXIMPIdentity;
+class CSearchKeysSubscriptionItem;
+/**
+ * search  data cache implementation
+ *
+ * @lib searchdatamodel.dll
+ */
+class CSearchDataCache : public CBase,
+                     	public MSearchItemParent
+    {
+public: // Definitions
+
+    /** The class ID. */
+    enum { KClassId = IMP_CLSID_CSEARCHDATACACHE };
+
+
+public: // Construction and destruction
+
+    /**
+     * Construction
+     */
+    IMPORT_C static CSearchDataCache  * NewL( MXIMPHost& aHost );
+
+    /**
+     * Destruction
+     */
+    virtual ~CSearchDataCache  ();
+
+private:
+ 	/**
+     * construction
+     */
+    CSearchDataCache  ( MXIMPHost& aHost );
+     /**
+     * leaving constructor
+     */
+    void ConstructL();
+    
+private:   // MXIMPItemParentBase
+	/**
+     * @see MXIMPItemParentBase
+     */
+
+	TAny* GetInterface(TInt aInterfaceId);
+    /**
+     * @see MXIMPItemParentBase
+     */
+    void RegisterExpiringItemL( CXIMPSubscriptionItemBase* aExpireItem );
+    /**
+     * @see MXIMPItemParentBase
+     */
+    void UnregisterExpiringItem( CXIMPSubscriptionItemBase* aExpireItem );
+    
+private: // From MSearchItemParent
+
+    /**
+     * @see MSearchItemParent
+     */
+    void RemoveMe( CSearchSubscriptionItem* aChild );
+    
+    void RemoveMe( CSearchKeysSubscriptionItem* aChild );
+    
+	/**
+     * @see MSearchItemParent
+     */
+    void AddEventL( CXIMPApiEventBase& aEvent, MXIMPPscContext* aContext );
+
+public: // New methods
+
+    /**
+     * - If CSearchSubscriptionItem is not found, data cache
+     *   initializes new one and returns ownership to caller
+     * - If CSearchSubscriptionItem is found, data cache increases
+     *   refcount by one, and returns the old object
+     */
+	IMPORT_C CSearchSubscriptionItem& SearchSubscriptionItemLC();
+	
+	/**
+     * - If CSearchKeysSubscriptionItem is not found, data cache
+     *   initializes new one and returns ownership to caller
+     * - If CSearchKeysSubscriptionItem is found, data cache increases
+     *   refcount by one, and returns the old object
+     */
+	IMPORT_C CSearchKeysSubscriptionItem& SearchKeysSubscriptionItemLC();
+	
+    /**
+     * Clean resources concerning context.
+     */
+    IMPORT_C void CleanResources( MXIMPPscContext& aContext );
+
+    /**
+     *
+     */
+    IMPORT_C void CleanExpired();
+    
+private: // Helper methods
+
+    /**
+     * Template method for removeMe when one subscription item is target.
+     * @param aItem Reference to subscription item pointer to remove.
+     * @param Pointer of item to remove.
+     */
+    template< class Type >
+    IMPORT_C static void RemoveMe( Type*& aItem, Type* aChild );
+
+    
+    /**
+     * Templated item instance creation. If item is not found it is created.
+     * @param aItem Reference to pointer where new item should be saved.
+     * @return Reference to item created.
+     */
+    template< class Type > 
+    Type& ItemLC( Type*& aItem );
+
+   
+    
+private: // Data
+
+    /**
+     * Access to host. not owned
+     */
+    MXIMPHost& iHost;
+
+    /**
+     * Does not own. Removed when RemoveMe called.
+     */
+ 	CSearchSubscriptionItem* iSearchSubscriptionItem;
+ 	CSearchKeysSubscriptionItem* iSearchKeySubscriptionItem;
+    };
+
+#endif // CSearchDataCache  IMP_H