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// -*- C++ -*-
//=============================================================================
/**
* @file Env.h
*
* $Id$
*
* @author Nanbor Wang <nanbor@cs.wustl.edu>
*/
//=============================================================================
#ifndef _ACEXML_ENV_H_
#define _ACEXML_ENV_H_
#include "common/Exception.h"
/**
* @class ACEXML_Env Env.h "common/Env.h"
*
* @brief ACEXML_Env
*
* ACEXML_Env is modeled after CORBA_Environment class. It provides
* a place holder for callees to propagate exceptions back to
* callers. ACEXML does not support native exceptions at this
* moement.
*
* @sa ACEXML_Exception
*/
class ACEXML_Export ACEXML_Env
{
public:
/// Default constructor.
ACEXML_Env ();
/// Copy constructor.
ACEXML_Env (const ACEXML_Env &ev);
/// Destructor.
~ACEXML_Env (void);
/// Check if exception has occured.
int exception_occured (void) const;
/// Clear the exception and reset the evnrionment.
void reset (void);
/// Return the underlying exception for examination
ACEXML_Exception *exception (void) const;
/// Set the underlying exception. ACEXML_Env assumes
/// ownership of the exception.
void exception (ACEXML_Exception *exception);
private:
/// Place holder for exception (if one occurs.)
ACEXML_Exception *exception_;
};
// = These macros are used to speed up programming. I hope to
// merge them with ACE_CHECK macros someday.
#define ACEXML_CHECK if (xmlenv.exception ()) return;
#define ACEXML_CHECK_RETURN(VAL) if (xmlenv.exception ()) return VAL;
#if defined (__ACEXML_INLINE__)
# include "common/Env.i"
#endif /* __ACEXML_INLINE__ */
#endif /* _ACEXML_ENV_H_ */
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