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diff --git a/tdeabc/resource.h b/tdeabc/resource.h
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+/*
+    This file is part of libkabc.
+    Copyright (c) 2001 Cornelius Schumacher <schumacher@kde.org>
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+    Boston, MA 02110-1301, USA.
+*/
+
+#ifndef KABC_RESOURCE_H
+#define KABC_RESOURCE_H
+
+#include <tderesources/resource.h>
+
+#include "addressbook.h"
+#include "plugin.h"
+
+namespace KABC {
+
+/**
+ * @short Helper class for handling coordinated save of address books.
+ *
+ * This class is used as helper class for saving address book.
+ * @see requestSaveTicket(), save().
+ */
+class KABC_EXPORT Ticket
+{
+    friend class Resource;
+
+  public:
+    ~Ticket();
+
+    Resource *resource();
+
+  private:
+    Ticket( Resource *resource );
+
+    Resource *mResource;
+};
+
+/**
+ * @internal
+ */
+class KABC_EXPORT Resource : public KRES::Resource
+{
+  Q_OBJECT
+
+  public:
+
+    /**
+      @short Resource Iterator
+
+      This class provides an iterator for resource entries.
+      By default it points to a TQValueList<Addressee>::Iterator,
+      but you can reimplement this class to fit your own needs.
+    */
+    class KABC_EXPORT Iterator
+    {
+      public:
+        Iterator();
+        Iterator( const Iterator & );
+        virtual ~Iterator();
+
+        virtual Iterator &operator=( const Iterator & );
+        virtual const Addressee &operator*() const;
+        virtual Addressee &operator*();
+        virtual Iterator &operator++();
+        virtual Iterator &operator++( int );
+        virtual Iterator &operator--();
+        virtual Iterator &operator--( int );
+        virtual bool operator==( const Iterator &it );
+        virtual bool operator!=( const Iterator &it );
+
+        struct IteratorData;
+        IteratorData *d;
+    };
+
+    /**
+      @short Resource Const Iterator
+
+      This class provides a const iterator for resource entries.
+    */
+    class KABC_EXPORT ConstIterator
+    {
+      public:
+        ConstIterator();
+        ConstIterator( const ConstIterator & );
+        ConstIterator( const Iterator & );
+        virtual ~ConstIterator();
+
+        virtual ConstIterator &operator=( const ConstIterator & );
+        virtual const Addressee &operator*() const ;
+        virtual ConstIterator &operator++();
+        virtual ConstIterator &operator++( int );
+        virtual ConstIterator &operator--();
+        virtual ConstIterator &operator--( int );
+        virtual bool operator==( const ConstIterator &it );
+        virtual bool operator!=( const ConstIterator &it );
+
+        struct ConstIteratorData;
+        ConstIteratorData *d;
+    };
+
+    /**
+      Constructor.
+
+      @param config The config object where the derived classes can
+                    read out their settings.
+     */
+    Resource( const TDEConfig *config );
+
+    /**
+      Destructor.
+     */
+    virtual ~Resource();
+
+    /**
+      Returns an iterator pointing to the first addressee in the resource.
+      This iterator equals end() if the resource is empty.
+     */
+    virtual ConstIterator begin() const;
+
+    /**
+      This is an overloaded member function, provided for convenience. It
+      behaves essentially like the above function.
+     */
+    virtual Iterator begin();
+
+    /**
+      Returns an iterator pointing to the last addressee in the resource.
+      This iterator equals begin() if the resource is empty.
+     */
+    virtual ConstIterator end() const;
+
+    /**
+      This is an overloaded member function, provided for convenience. It
+      behaves essentially like the above function.
+     */
+    virtual Iterator end();
+
+    /**
+      Returns a pointer to the addressbook.
+     */
+    AddressBook *addressBook();
+
+    /**
+      Writes the resource specific config to file.
+     */
+    virtual void writeConfig( TDEConfig *config );
+
+    /**
+      Request a ticket, you have to pass through save() to
+      allow locking. The resource has to create its locks
+      in this function.
+    */
+    virtual Ticket *requestSaveTicket() = 0;
+
+    /**
+      Releases the ticket previousely requested with requestSaveTicket().
+      The resource has to remove its locks in this function.
+	  This function is also responsible for deleting the ticket.
+     */
+    virtual void releaseSaveTicket( Ticket* ) = 0;
+
+    /**
+      Loads all addressees synchronously.
+
+      @returns Whether the loading was successfully.
+     */
+    virtual bool load() = 0;
+
+    /**
+      Loads all addressees asyncronously. You have to make sure that either
+      the loadingFinished() or loadingError() signal is emitted from within
+      this function.
+
+      The default implementation simply calls the synchronous load.
+
+      @return Whether the synchronous part of loading was successfully.
+     */
+    virtual bool asyncLoad();
+
+    /**
+      Insert an addressee into the resource.
+     */
+    virtual void insertAddressee( const Addressee& );
+
+    /**
+      Removes an addressee from resource.
+     */
+    virtual void removeAddressee( const Addressee& addr );
+
+    /**
+      Saves all addressees synchronously.
+
+      @param ticket You have to release the ticket later with
+                    releaseSaveTicket() explicitely.
+      @return Whether the saving was successfully.
+     */
+    virtual bool save( Ticket *ticket ) = 0;
+
+    /**
+      Saves all addressees asynchronously. You have to make sure that either
+      the savingFinished() or savingError() signal is emitted from within
+      this function.
+
+      The default implementation simply calls the synchronous save.
+
+      @param ticket You have to release the ticket later with
+                    releaseSaveTicket() explicitely.
+      @return Whether the saving was successfully.
+     */
+    virtual bool asyncSave( Ticket *ticket );
+
+    /**
+      Searches an addressee with the specified unique identifier.
+
+      @param uid The unique identifier you are looking for.
+      @return The addressee with the specified unique identifier or an
+              empty addressee.
+     */
+    virtual Addressee findByUid( const TQString &uid );
+
+    /**
+      Searches all addressees which match the specified name.
+
+      @param name The name you are looking for.
+      @return A list of all matching addressees.
+     */
+    virtual Addressee::List findByName( const TQString &name );
+
+    /**
+      Searches all addressees which match the specified email address.
+
+      @param email The email address you are looking for.
+      @return A list of all matching addressees.
+     */
+    virtual Addressee::List findByEmail( const TQString &email );
+
+    /**
+      Searches all addressees which belongs to the specified category.
+
+      @param category The category you are looking for.
+      @return A list of all matching addressees.
+     */
+    virtual Addressee::List findByCategory( const TQString &category );
+
+    /**
+      Removes all addressees from the resource.
+     */
+    virtual void clear();
+
+    /**
+      @internal
+
+      Sets the address book of the resource.
+     */
+    void setAddressBook( AddressBook* );
+
+  signals:
+    /**
+      This signal is emitted when the resource has finished the loading of all
+      addressees from the backend to the internal cache.
+
+      @param resource The pointer to the resource which emitted this signal.
+     */
+    void loadingFinished( Resource *resource );
+
+    /**
+      This signal is emitted when an error occured during loading the
+      addressees from the backend to the internal cache.
+
+      @param resource The pointer to the resource which emitted this signal.
+      @param msg A translated error message.
+     */
+    void loadingError( Resource *resource, const TQString &msg );
+
+    /**
+      This signal is emitted when the resource has finished the saving of all
+      addressees from the internal cache to the backend.
+
+      @param resource The pointer to the resource which emitted this signal.
+     */
+    void savingFinished( Resource *resource );
+
+    /**
+      This signal is emitted when an error occured during saving the
+      addressees from the internal cache to the backend.
+
+      @param resource The pointer to the resource which emitted this signal.
+      @param msg A translated error message.
+     */
+    void savingError( Resource *resource, const TQString &msg );
+
+  protected:
+    Ticket *createTicket( Resource * );
+    Addressee::Map mAddrMap;
+
+  private:
+    AddressBook *mAddressBook;
+
+    class ResourcePrivate;
+    ResourcePrivate *d;
+};
+
+}
+
+#endif