--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/javamanager/javainstaller/installer/src.s60/utils/propertylistener.h	Thu Aug 19 09:48:13 2010 +0300
@@ -0,0 +1,82 @@
+/*
+* Copyright (c) 2010 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:
+*
+* This class implements general wait object for calling
+* a callback function after subscribed P&S key value changes.
+*
+*/
+
+#ifndef PROPERTYLISTENER_H
+#define PROPERTYLISTENER_H
+
+#include <e32base.h>
+#include <e32property.h>
+#include <jni.h>
+
+namespace java
+{
+namespace installer
+{
+
+/**
+ * This class implements wait object for calling a callback
+ * function after subscribed P&S key value changes.
+ */
+NONSHARABLE_CLASS(CPropertyListener) : public CActive
+{
+public:  // Constructor and destructor
+
+    static CPropertyListener* NewL(TUid aUid, TUint aKey);
+
+    // Destructor.
+    virtual ~CPropertyListener();
+
+private:
+
+    // Constructor.
+    CPropertyListener(TUid aUid, TUint aKey);
+
+    // 2nd phase constructor.
+    void ConstructL();
+
+    // from base class CActive
+
+    void RunL();
+
+    void DoCancel();
+
+public: // Methods
+
+    void ProcessEventsL(JNIEnv *aEnv, jobject aProvider);
+
+private: // Data
+
+    CActiveScheduler* iActiveScheduler; // Owned
+
+    RProperty iProperty; // Property to listen
+    TUid iUid; // Property UID
+    TUint iKey; // Property key
+
+    JNIEnv *iEnv; // JNI environment, not owned
+    jobject iProvider; // Callback object
+    jmethodID iMethod; // Callback method
+
+    TBool iCancelled;
+};
+
+} // installer
+} // java
+
+#endif // PROPERTYLISTENER_H