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// -*- C++ -*-
//=============================================================================
/**
* @file Notify_Constraint_Interpreter.h
*
* @author Pradeep Gore <pradeep@cs.wustl.edu>
*/
//=============================================================================
#ifndef TAO_NOTIFY_CONSTRAINT_INTERPRETER_H
#define TAO_NOTIFY_CONSTRAINT_INTERPRETER_H
#include /**/ "ace/pre.h"
#include "ace/ETCL/ETCL_Interpreter.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "tao/ETCL/TAO_ETCL_Constraint.h"
#include "orbsvcs/CosNotifyFilterC.h"
#include "orbsvcs/Notify/notify_serv_export.h"
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
class TAO_Notify_Constraint_Visitor;
/**
* @class TAO_Notify_Constraint_Interpreter
*
* @brief "ETCL" Interpreter for the Notify queries.
*/
class TAO_Notify_Serv_Export TAO_Notify_Constraint_Interpreter
: public ETCL_Interpreter
{
public:
// = Initialization and termination methods.
TAO_Notify_Constraint_Interpreter (void);
/// Destructor
virtual ~TAO_Notify_Constraint_Interpreter (void);
/**
* This method builds an expression tree representing the
* constraint specified in @a constraints, and throws an Illegal
* Constraint exception if the constraint given has syntax errors or
* semantic errors, such as mismatched types.
*/
void build_tree (const CosNotifyFilter::ConstraintExp& exp);
/// Returns true if the constraint is evaluated successfully by
/// the evaluator.
CORBA::Boolean evaluate (TAO_Notify_Constraint_Visitor &evaluator);
private:
void build_tree (const char* constraints);
};
TAO_END_VERSIONED_NAMESPACE_DECL
#include /**/ "ace/post.h"
#endif /* TAO_NOTIFY_CONSTRAINT_INTERPRETER_H */
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