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// -*- C++ -*-
//=============================================================================
/**
* @file Exception.h
*
* $Id$
*
* @author Nanbor Wang <nanbor@cs.wustl.edu>
*/
//=============================================================================
#ifndef _ACEXML_EXCEPTION_H_
#define _ACEXML_EXCEPTION_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/XML_Types.h"
#include "ACEXML/common/XML_Macros.h"
#if defined (ACE_USES_NATIVE_EXCEPTIONS)
# define ACEXML_RAISE(EXCEPTION) throw EXCEPTION
#else
# define ACEXML_RAISE(EXCEPTION)
#endif
/**
* @class ACEXML_Exception Exception.h "ACEXML/common/Exception.h"
*
* @brief ACEXML_Exception
*
* ACEXML_Exception is the base class for all ACEXML related exceptions.
* Since ACEXML currently does not support native exceptions, all
* exceptions should be thrown thru ACEXML_Env.
*
* @sa ACEXML_Env
*/
class ACEXML_Export ACEXML_Exception
{
public:
/// Copy constructor.
ACEXML_Exception (const ACEXML_Exception &src);
/// Assignment operator.
ACEXML_Exception& operator= (const ACEXML_Exception& src);
/// Destructor.
virtual ~ACEXML_Exception (void);
/// Throw the exception.
virtual void _raise (void) = 0;
/// Static narrow operation.
static ACEXML_Exception* _downcast (ACEXML_Exception* ex);
/// Return the exception type. (for safe downcast.)
virtual const ACEXML_Char *id (void) const ;
/// Dynamically create a copy of this exception.
virtual ACEXML_Exception *duplicate (void) const = 0;
/// Check whether this is an exception of type specified by <name>.
virtual int is_a (const ACEXML_Char *name) = 0;
/// Print out exception using ACE_DEBUG.
virtual void print (void) = 0;
protected:
/// Default contructor.
ACEXML_Exception (void);
/// All exceptions have names. This name is used to identify the
/// type of an exception.
static const ACEXML_Char *exception_name_;
/// A null string that we return when there is no exception.
static const ACEXML_Char *null_;
};
#if defined (__ACEXML_INLINE__)
# include "ACEXML/common/Exception.i"
#endif /* __ACEXML_INLINE__ */
#include "ace/post.h"
#endif /* _ACEXML_EXCEPTION_H_ */
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