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#ifndef CONNECTIVITY_COLUMNSHELPER_HXX
#define CONNECTIVITY_COLUMNSHELPER_HXX

#include "connectivity/sdbcx/VCollection.hxx"
#include <com/sun/star/sdbc/XDatabaseMetaData.hpp>
#include "connectivity/sdbcx/IRefreshable.hxx"
#include "connectivity/dbtoolsdllapi.hxx"

namespace connectivity
{
    class OTableHelper;
    class OColumnsHelperImpl;
    /** contains generell column handling to creat default columns and default sql statements.
    */
    class OOO_DLLPUBLIC_DBTOOLS OColumnsHelper : public sdbcx::OCollection
    {
        OColumnsHelperImpl* m_pImpl;
    protected:
        OTableHelper*	m_pTable;

        virtual sdbcx::ObjectType createObject(const ::rtl::OUString& _rName);
        virtual void impl_refresh() throw(::com::sun::star::uno::RuntimeException);
        virtual ::com::sun::star::uno::Reference< ::com::sun::star::beans::XPropertySet > createDescriptor();
        virtual sdbcx::ObjectType appendObject( const ::rtl::OUString& _rForName, const ::com::sun::star::uno::Reference< ::com::sun::star::beans::XPropertySet >& descriptor );
        virtual void dropObject(sal_Int32 _nPos,const ::rtl::OUString _sElementName);
    public:
        OColumnsHelper(	::cppu::OWeakObject& _rParent
                        ,sal_Bool _bCase
                        ,::osl::Mutex& _rMutex
                        ,const TStringVector &_rVector
                        ,sal_Bool _bUseHardRef = sal_True
                    );
        virtual ~OColumnsHelper();

        /**	set the parent of the columns. Can also be <NULL/>.
            @param	_pTable
                The parent.
        */
        inline void setParent(OTableHelper* _pTable) { m_pTable = _pTable;}
    };
}
#endif // CONNECTIVITY_COLUMNSHELPER_HXX