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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 * 
 * Copyright 2008 by Sun Microsystems, Inc.
 *
 * OpenOffice.org - a multi-platform office productivity suite
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 * $RCSfile: deferredview.hxx,v $
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#ifndef CONFIGMGR_DEFERREDVIEW_HXX_
#define CONFIGMGR_DEFERREDVIEW_HXX_

#include "viewstrategy.hxx"


namespace configmgr
{
    namespace view
    {
//-----------------------------------------------------------------------------
// View behavior for direct data access
//-----------------------------------------------------------------------------

        class DeferredViewStrategy : public ViewStrategy
        {
        public:
            explicit 
            DeferredViewStrategy() {} 

        // ViewStrategy implementation
        private:
            // change handling -required
            virtual bool doHasChanges(Node const& _aNode) const;
            virtual void doMarkChanged(Node const& _aNode);


            // change handling
            virtual void doCollectChanges(Node const& _aNode, configuration::NodeChanges& rChanges) const;

            // commit protocol
            virtual std::auto_ptr<SubtreeChange> doPreCommitChanges(Tree const& _aTree, configuration::ElementList& _rRemovedElements);
            virtual void doFailedCommit(Tree const& _aTree, SubtreeChange& rChanges);
            virtual void doFinishCommit(Tree const& _aTree, SubtreeChange& rChanges);
            virtual void doRevertCommit(Tree const& _aTree, SubtreeChange& rChanges);

            // notification protocol
            virtual configuration::ValueChangeImpl* doAdjustToValueChange(GroupNode const& _aGroupNode, Name const& aName, ValueChange const& rExternalChange);
        //	virtual void doAdjustToElementChanges(configuration::NodeChangesInformation& rLocalChanges, SetNode const& _aNode, SubtreeChange const& rExternalChanges, TreeDepth nDepth);

            // common attributes 
            virtual node::Attributes doAdjustAttributes(node::Attributes const& _aAttributes) const;

            // group member access
            virtual configuration::ValueMemberNode doGetValueMember(GroupNode const& _aNode, Name const& _aName, bool _bForUpdate) const;

            // set element access
            virtual void doInsertElement(SetNode const& _aNode, Name const& aName, configuration::SetEntry const& aNewEntry);
            virtual void doRemoveElement(SetNode const& _aNode, Name const& aName);

            virtual NodeFactory& doGetNodeFactory();
        private:
            void implCollectChangesIn(Node const& _aNode, NodeChanges& rChanges) const;
            // commit protocol
            std::auto_ptr<SubtreeChange> implPreCommitChanges(Node const& _aNode, configuration::ElementList& _rRemovedElements);
            void implFailedCommit(Node const& _aNode, SubtreeChange& rChanges);
            void implFinishCommit(Node const& _aNode, SubtreeChange& rChanges);
            void implRevertCommit(Node const& _aNode, SubtreeChange& rChanges);

            void implPreCommitSubChanges(GroupNode const & _aGroup, configuration::ElementList& _rRemovedElements, SubtreeChange& _rParentChange);
            void implFailedSubCommitted(GroupNode const & _aGroup, SubtreeChange& rChanges);
            void implFinishSubCommitted(GroupNode const & _aGroup, SubtreeChange& rChanges);
            void implRevertSubCommitted(GroupNode const & _aGroup, SubtreeChange& rChanges);

        };
//-----------------------------------------------------------------------------
    }
}

#endif // CONFIGMGR_DEFERREDVIEW_HXX_