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 *  Sun Microsystems Inc., October, 2000
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 *  GNU Lesser General Public License Version 2.1
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 *  Sun Industry Standards Source License Version 1.1
 *  =================================================
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 ************************************************************************/
/*************************************************************************
 * @file
 * Sax stream to export xml to SODC.
 ************************************************************************/
#ifndef     _IXFSTREAM_INC
#define     _IXFSTREAM_INC


#include <rtl/ustring.hxx>

class IXFAttrList;

/**
 * @brief
 * Stream wrapper for sax writer.
 */
class IXFStream
{
public:
    virtual ~IXFStream(){}
    /**
     * @descr   Called when start write.Usually you can output document type info and xml encoding info.
     */
    virtual void    StartDocument() = 0;

    /**
     * @descr   called when end output.
     */
    virtual void    EndDocument() = 0;

    /**
     * @descr   Wrap XDocumentHandler::startElement()
     * @param   oustr element tag name.
     */
    virtual void    StartElement(const rtl::OUString& oustr) = 0;

    /**
     * @descr   Wrap XDocumentHandler::endElement()
     * @param   oustr element tag name.
     */
    virtual void    EndElement(const rtl::OUString& oustr) = 0;

    /**
     * @descr   output text node.
     * @param   oustr text content.
     */
    virtual void    Characters(const rtl::OUString& oustr) = 0;

    /**
     * @descr   return the Attribute list interface.
     * @return  attribute list.
     */
    virtual IXFAttrList*    GetAttrList() = 0;
};

#endif //_IXFSTREAM_INC
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