--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/phonebookengines/VirtualPhonebook/VPbkEng/src/CVPbkContactFindOperation.cpp	Tue Feb 02 10:12:17 2010 +0200
@@ -0,0 +1,135 @@
+/*
+* Copyright (c) 2005-2007 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:  An implementation for find operation. Can be used e.g
+*                in store domain implementation to handle Find -operations
+*                from stores.
+*
+*/
+
+
+#include "CVPbkContactFindOperation.h"
+
+#include <CVPbkContactLinkArray.h>
+#include <MVPbkContactLink.h>
+
+CVPbkContactFindOperation::CVPbkContactFindOperation(
+        MVPbkContactFindObserver& aObserver) :
+    iObserver(aObserver)
+    {
+    }
+
+inline void CVPbkContactFindOperation::ConstructL()
+    {
+    }
+
+EXPORT_C CVPbkContactFindOperation* CVPbkContactFindOperation::NewLC(
+        MVPbkContactFindObserver& aObserver)
+    {
+    CVPbkContactFindOperation* self = new(ELeave) CVPbkContactFindOperation(aObserver);
+    CleanupStack::PushL(self);
+    self->ConstructL();
+    return self;
+    }
+
+CVPbkContactFindOperation::~CVPbkContactFindOperation()
+    {
+    delete iResults;
+    }
+
+void CVPbkContactFindOperation::HandleZeroSuboperations()
+    {
+    // If no suboperations then complete find with empty array.
+    // If completing leaves then call FindFailed 
+    TRAPD( res, HandleZeroSuboperationsL() );
+    if ( res != KErrNone )
+        {
+        iObserver.FindFailed( res );
+        }
+    }
+    
+void CVPbkContactFindOperation::FindCompleteL(MVPbkContactLinkArray* aResults)
+    {
+    ++iCompleteCount;
+
+    // take ownership of aResults immediately
+    MVPbkContactLinkArray* passedResults = aResults;
+    CleanupDeletePushL(passedResults);
+
+    // lazy creation of result array
+    if (!iResults)
+        {
+        iResults = CVPbkContactLinkArray::NewL();
+        }
+
+    if (aResults)
+        {
+        // append results to this operations array
+        for (TInt i = aResults->Count() - 1; i >= 0; --i)
+            {
+            MVPbkContactLink* link = aResults->At(i).CloneLC();
+            iResults->AppendL(link);
+            CleanupStack::Pop(); // link
+            }
+        }
+    CleanupStack::PopAndDestroy(passedResults);
+
+    // notify clients if all suboperations have completed
+    if (iCompleteCount >= SubOperationCount())
+        {
+        // takes ownership of results
+        CVPbkContactLinkArray* results = iResults;
+        iResults = NULL;
+        iObserver.FindCompleteL(results);
+        }
+    }
+
+void CVPbkContactFindOperation::FindFailed(TInt aError)
+    {
+    ++iCompleteCount;
+
+    // notify clients if all suboperations have completed
+    if (iCompleteCount >= SubOperationCount())
+        {
+        // if there are results give them to the client
+        if (iResults)
+            {
+            // the observer takes ownership of results
+            CVPbkContactLinkArray* results = iResults;
+            iResults = NULL;
+            TRAPD(err, iObserver.FindCompleteL(results));
+            if (err)
+                {
+                // client must take ownership of results before it can leave
+                iObserver.FindFailed(aError);
+                }
+            }
+        else
+            {
+            // otherwise inform find failure
+            iObserver.FindFailed(aError);
+            }
+        }
+    }
+    
+// -----------------------------------------------------------------------------
+// CVPbkContactFindOperation::HandleZeroSuboperationsL
+// -----------------------------------------------------------------------------
+//     
+void CVPbkContactFindOperation::HandleZeroSuboperationsL()
+    {
+    CVPbkContactLinkArray* emptyResults = CVPbkContactLinkArray::NewL();
+    // Client takes the ownership of the results
+    iObserver.FindCompleteL( emptyResults );
+    }
+// End of File