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diff --git a/src/CommonsJavaScript/PrivateObject.h b/src/CommonsJavaScript/PrivateObject.h
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+/*
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd All Rights Reserved
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+#ifndef WRTDEVICEAPIS_COMMONSJAVASCRIPT_PRIVATEOBJECT_H_
+#define WRTDEVICEAPIS_COMMONSJAVASCRIPT_PRIVATEOBJECT_H_
+
+#include <JavaScriptCore/JavaScript.h>
+#include <dpl/noncopyable.h>
+#include <dpl/assert.h>
+#include <Commons/Exception.h>
+#include <Commons/TypeTraits.h>
+
+namespace WrtDeviceApis {
+namespace CommonsJavaScript {
+template<class T>
+struct NoAcquire
+{
+    void acquire(T*)
+    {}
+
+  protected:
+    ~NoAcquire()
+    {}
+};
+
+template<class T>
+struct AcquireByProtect
+{
+    void acquire(T* object)
+    {
+        Assert(object && "Object passed to protect can't be NULL.");
+        JSValueProtect(object->getContext(), object->getObject());
+    }
+
+  protected:
+    ~AcquireByProtect()
+    {}
+};
+
+template<class T>
+struct NoRelease
+{
+    void release(T* object)
+    {
+        (void)object;
+    }
+
+  protected:
+    ~NoRelease()
+    {}
+};
+
+template<class T>
+struct ReleaseByDelete
+{
+    void release(T* object)
+    {
+        delete object->getObject();
+    }
+
+  protected:
+    ~ReleaseByDelete()
+    {}
+};
+
+template<class T>
+struct ReleaseByUnprotect
+{
+    void release(T* object)
+    {
+        Assert(object && "Object passed to unprotect can't be NULL.");
+        JSValueUnprotect(object->getContext(), object->getObject());
+    }
+
+  protected:
+    ~ReleaseByUnprotect()
+    {}
+};
+
+template<class T>
+struct NoOwnership : protected NoAcquire<T>,
+    protected NoRelease<T>
+{
+  protected:
+    ~NoOwnership()
+    {}
+};
+
+template<class T>
+struct OwnershipByAcquisition : protected NoAcquire<T>,
+    protected ReleaseByDelete<T>
+{
+  protected:
+    ~OwnershipByAcquisition()
+    {}
+};
+
+template<class T>
+struct OwnershipByProtection : protected AcquireByProtect<T>,
+    protected ReleaseByUnprotect<T>
+{
+  protected:
+    ~OwnershipByProtection()
+    {}
+};
+
+template<class PrivateClass,
+         template <class> class OwnershipPolicy = OwnershipByAcquisition>
+class PrivateObject : public DPL::Noncopyable,
+    protected OwnershipPolicy<PrivateObject<PrivateClass, OwnershipPolicy> >
+{
+  public:
+    typedef PrivateClass ObjectType;
+
+  public:
+    /**
+     * Creates storage object for JS private data.
+     * @param context JS (root/global) context.
+     * @param object Object to store.
+     * @throw NullPointerException When object is pointer and is set to NULL.
+     */
+    PrivateObject(JSContextRef context,
+                  const PrivateClass& object) :
+        m_context(context),
+        m_object(object)
+    {
+        Assert(NULL != m_context && "Context is NULL.");
+        Assert(!Commons::IsNull<PrivateClass>::value(
+                   object) && "Object is NULL.");
+        this->acquire(this);
+    }
+
+    /**
+     * Destroys instance of the object.
+     */
+    virtual ~PrivateObject()
+    {
+        this->release(this);
+    }
+
+    /**
+     * Gets stored JS context.
+     * @return JavaScript context.
+     */
+    virtual JSContextRef getContext() const
+    {
+        return m_context;
+    }
+
+    /**
+     * Gets stored object.
+     * @return Stored object.
+     */
+    virtual PrivateClass getObject() const
+    {
+        return m_object;
+    }
+
+  protected:
+    JSContextRef m_context; ///< JS context.
+    PrivateClass m_object; ///< Stored object.
+};
+
+/**
+ * Specialization for type void.
+ */
+template<>
+class PrivateObject<void, NoOwnership> : private DPL::Noncopyable
+{
+  public:
+    /**
+     * Creates storage object for JS private data.
+     * @param context JS (root/global) context.
+     * @remarks Takes ownership over stored object.
+     */
+    explicit PrivateObject(JSContextRef context) : m_context(context)
+    {
+        Assert(NULL != m_context && "Context is NULL.");
+    }
+
+    /**
+     * Destroys instance of the object.
+     */
+    virtual ~PrivateObject()
+    {}
+
+    /**
+     * Gets stored JS context.
+     * @return JavaScript context.
+     */
+    virtual JSContextRef getContext() const
+    {
+        return m_context;
+    }
+
+  protected:
+    JSContextRef m_context;
+};
+
+template<class C>
+struct PrivateObjectT
+{
+    typedef PrivateObject<C, NoOwnership> Type;
+};
+
+template<class C>
+struct PrivateObjectT<C*>
+{
+    typedef PrivateObject<C*, OwnershipByAcquisition> Type;
+};
+
+template<>
+struct PrivateObjectT<JSObjectRef>
+{
+    typedef PrivateObject<JSObjectRef, NoOwnership> Type;
+};
+
+template<>
+struct PrivateObjectT<void>
+{
+    typedef PrivateObject<void, NoOwnership> Type;
+};
+} // CommonsJavaScript
+} // WrtDeviceApis
+
+#endif /* PRIVATEOBJECT_H_ */