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/* -*- C++ -*- */
//=============================================================================
/**
* @file Log_Constraint_Interpreter.h
*
* $Id$
*
*
*
*
* @author Pradeep Gore <pradeep@cs.wustl.edu>
* @author D A Hanvey <d.hanvey@qub.ac.uk>
*
*/
//=============================================================================
#ifndef TAO_LOG_CONSTRAINT_INTERPRETER_H
#define TAO_LOG_CONSTRAINT_INTERPRETER_H
#include /**/ "ace/pre.h"
#include "orbsvcs/orbsvcs/ETCL/ETCL_Interpreter.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "orbsvcs/orbsvcs/ETCL/ETCL_Constraint.h"
#include "orbsvcs/orbsvcs/DsLogAdminC.h"
#include "log_export.h"
class TAO_Log_Constraint_Visitor;
/**
* @class TAO_Log_Constraint_Interpreter
*
* @brief "ETCL" Interpreter for the Log queries.
*/
class TAO_Log_Export TAO_Log_Constraint_Interpreter :
public TAO_ETCL_Interpreter
{
public:
// = Initialization and termination methods.
/**
* This constructor builds an expression tree representing the
* constraint specified in <constraints>, and throws an Illegal
* Constraint exception if the constraint given has syntax errors or
* semantic errors, such as mismatched types.
*/
TAO_Log_Constraint_Interpreter (const char* constraints
ACE_ENV_ARG_DECL)
ACE_THROW_SPEC ((DsLogAdmin::InvalidConstraint,
CORBA::NO_MEMORY));
/// Destructor.
~TAO_Log_Constraint_Interpreter (void);
/// Returns true if the constraint is evaluated successfully by
/// the evaluator.
CORBA::Boolean evaluate (TAO_Log_Constraint_Visitor &evaluator);
};
#include /**/ "ace/post.h"
#endif /* TAO_LOG_CONSTRAINT_INTERPRETER_H */
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