// $Id$

// ========================================================================
//
// = LIBRARY
//    orbsvcs
//
// = FILENAME
//    Trader_Constraint_Visitors.h
//
// = AUTHOR
//    Seth Widoff <sbw1@cs.wustl.edu>
//
// ========================================================================

#ifndef TAO_TRADER_CONSTRAINT_VISITOR_H
#include "ace/pre.h"
#define TAO_TRADER_CONSTRAINT_VISITOR_H

#include "Constraint_Visitors.h"
#include "Trader.h"
#include "Trader_Utils.h"
#include "orbsvcs/CosTradingC.h"

class TAO_Trader_Constraint_Validator : public TAO_Constraint_Validator
{
 public:
  TAO_Trader_Constraint_Validator (const CosTradingRepos::ServiceTypeRepository::TypeStruct&
                                   type_struct);
  // The constructor creates a map of property names to their values
  // from the Type Description retrieved from the
  // ServiceTypeRepository. The ServiceTypeRepository throws
  // exceptions when it's displeased with the type name provided to
  // it. The map allows O(lg n) associative access, rather than the
  // O(n) sequential lookup from the CORBA data structures.

  virtual ~TAO_Trader_Constraint_Validator (void);
  // Desctructor.

};

class TAO_Trader_Constraint_Evaluator : public TAO_Constraint_Evaluator
{
 public:
  TAO_Trader_Constraint_Evaluator (CosTrading::Offer* offer,
                                   CORBA::Boolean supports_dynamic_properties = 1);
  // Constructor.

  virtual int visit_property (TAO_Property_Constraint* literal);

 private:
  TAO_Property_Evaluator prop_eval_;
  // Utility with which to evaluate the properties of an offer, be
  // they dyanmic or static.
};

#include "ace/post.h"
#endif /* TAO_TRADER_CONSTRAINT_VISITOR_H */