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#ifndef _XMLOFF_PROPERTYHANDLERBASE_HXX
#define _XMLOFF_PROPERTYHANDLERBASE_HXX

#include <sal/types.h>

namespace com{ namespace sun{ namespace star{ namespace uno{ class Any; } } } }
namespace rtl{ class OUString; }
namespace binfilter {

class SvXMLUnitConverter;
struct XMLPropertyState;

///////////////////////////////////////////////////////////////////////////
//
/** Abstract base-class for different XML-types. Derivations of this class
    knows how to compare, im/export a special XML-type
*/
class XMLPropertyHandler
{
    // ??? const SvXMLUnitConverter& rUnitConverter         Do we need this ?

public:
    // Just needed for virtual destruction
    virtual ~XMLPropertyHandler();

    /** Compares two Any's in case of the given XML-data-type.
        By default the Any-equal-operator is called. */
    virtual sal_Bool equals( const ::com::sun::star::uno::Any& r1, const ::com::sun::star::uno::Any& r2 ) const;

    /// Imports the given value in cas of the given XML-data-type
    virtual sal_Bool importXML( const ::rtl::OUString& rStrImpValue, ::com::sun::star::uno::Any& rValue, const SvXMLUnitConverter& rUnitConverter ) const =0;
    /// Exports the given value in cas of the given XML-data-type
    virtual sal_Bool exportXML( ::rtl::OUString& rStrExpValue, const ::com::sun::star::uno::Any& rValue, const SvXMLUnitConverter& rUnitConverter ) const =0;
};

}//end of namespace binfilter
#endif      // _XMLOFF_PROPERTYHANDLERBASE_HXX

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