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// -*- C++ -*-
//=============================================================================
/**
* @file XMLFilter.h
*
* $Id$
*
* @author Nanbor Wang <nanbor@cs.wustl.edu>
*/
//=============================================================================
#ifndef _ACEXML_XMLFILTER_H_
#define _ACEXML_XMLFILTER_H_
#include /**/ "ace/pre.h"
#include "ACEXML/common/ACEXML_Export.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
#pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "ACEXML/common/XMLReader.h"
/**
* @class ACEXML_XMLFilter XMLFilter.h "ACEXML/common/XMLFilter.h"
*
* @brief ACEXML_XMLFilter
*
* An XML filter is like an XML reader, except that it obtains its events
* from another XML reader rather than a primary source like an XML
* document or database. Filters can modify a stream of events as they pass
* on to the final application.
*
* The XMLFilterImpl helper class provides a convenient base for creating
* SAX2 filters, by passing on all ACEXML_EntityResolver,
* ACEXML_DTDHandler, ACEXML_ContentHandler and ACEXML_ErrorHandler events
* automatically.
*/
class ACEXML_Export ACEXML_XMLFilter : public ACEXML_XMLReader
{
public:
/**
* Get the parent reader.
*/
virtual ACEXML_XMLReader *getParent (void) const = 0;
/**
* Set the parent reader.
*/
virtual void setParent (ACEXML_XMLReader *parent) = 0;
};
#include /**/ "ace/post.h"
#endif /* _ACEXML_XMLFILTER_H_ */
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