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#ifndef CNTFILTERABSTRACT_H
#define CNTFILTERABSTRACT_H

#include <qtcontacts.h>

class CntSymbianSrvConnection;

QTM_USE_NAMESPACE

class CntFilterAbstract : public QObject
{
    Q_OBJECT
    
public:
    /*
     * \param cntServer used to execute sql queries on the server
     * \param sqlHelper todo - used for sortorder, tablenames etc.
     */
    CntFilterAbstract(CntSymbianSrvConnection &cntServer);
    virtual ~CntFilterAbstract();

    /*
     * \param sortOrder that should be appended to the query
     */
    QList<QContactLocalId> contacts(const QContactFilter& filter,
                                    const QList<QContactSortOrder>& sortOrders,
                                    QContactManager::Error& error) const;
    virtual bool isFilterSupported(const QContactFilter& filter) const = 0;
    
    virtual QString createSelectQuery(const QContactFilter& filter,
                                      const QList<QContactSortOrder>& sortOrders,
                                      QContactManager::Error& error) const = 0;
    
  
protected:
    CntSymbianSrvConnection &m_srvConnection;
};

#endif
