TAO_Constraint_Interpreter Class Reference

TAO_Constraint_Interpreter will, given a constraint string whose syntax and semantics comply with the trader specification for the constraint language, determine if a CosTrading::Offer meets the constraints. More...

#include <Constraint_Interpreter.h>

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List of all members.

Public Member Functions

 TAO_Constraint_Interpreter (const CosTradingRepos::ServiceTypeRepository::TypeStruct &ts, const char *constraints ACE_ENV_ARG_DECL) throw (CosTrading::IllegalConstraint, CORBA::NO_MEMORY)
 TAO_Constraint_Interpreter (TAO_Constraint_Validator &validator, const char *constraints ACE_ENV_ARG_DECL) throw (CosTrading::IllegalConstraint, CORBA::NO_MEMORY)
 ~TAO_Constraint_Interpreter (void)
 Destructor.
CORBA::Boolean evaluate (CosTrading::Offer *offer)
CORBA::Boolean evaluate (TAO_Constraint_Evaluator &evaluator)

Detailed Description

TAO_Constraint_Interpreter will, given a constraint string whose syntax and semantics comply with the trader specification for the constraint language, determine if a CosTrading::Offer meets the constraints.

TAO_Constraint_Interpreter will first build an expression tree representing the constraint expression using Lex and Yacc. Then, using a TAO_Constraint_Validator, it will validate the semantic correctness of the tree. When the evaluate method is invoked with an Offer, the TAO_Constraint_Interpreter will construct an EvaluationVisitor, which will evaluate the tree and decide whether the offer meets the constraints.


Constructor & Destructor Documentation

TAO_Constraint_Interpreter::TAO_Constraint_Interpreter const CosTradingRepos::ServiceTypeRepository::TypeStruct ts,
const char *constraints  ACE_ENV_ARG_DECL
throw (CosTrading::IllegalConstraint, CORBA::NO_MEMORY)
 

TAO_Constraint_Interpreter::TAO_Constraint_Interpreter TAO_Constraint_Validator validator,
const char *constraints  ACE_ENV_ARG_DECL
throw (CosTrading::IllegalConstraint, CORBA::NO_MEMORY)
 

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_Constraint_Interpreter::~TAO_Constraint_Interpreter void   ) 
 

Destructor.


Member Function Documentation

CORBA::Boolean TAO_Constraint_Interpreter::evaluate TAO_Constraint_Evaluator evaluator  ) 
 

CORBA::Boolean TAO_Constraint_Interpreter::evaluate CosTrading::Offer offer  ) 
 


The documentation for this class was generated from the following files:
Generated on Wed Nov 23 16:33:22 2005 for TAO_CosTrader by  doxygen 1.4.5