TAO_Constraint Class Reference

TAO_Constraint is the base class of all nodes on the constraint expression tree. More...

#include <Constraint_Nodes.h>

Inheritance diagram for TAO_Constraint:

Inheritance graph
[legend]
List of all members.

Public Member Functions

virtual int accept (TAO_Constraint_Visitor *visitor)=0
virtual TAO_Expression_Type expr_type (void) const =0
 Return the expression type represented by this node.
virtual ~TAO_Constraint (void)

Detailed Description

TAO_Constraint is the base class of all nodes on the constraint expression tree.

An TAO_Constraint knows what type of operation or entity it represents, and which method on TAO_Constraint_Visitor correlates to its type. When the accept method is invoked, a subclass dispatches the method on an TAO_Constraint_Visitor correlating to its type.


Constructor & Destructor Documentation

virtual TAO_Constraint::~TAO_Constraint void   )  [inline, virtual]
 


Member Function Documentation

virtual int TAO_Constraint::accept TAO_Constraint_Visitor visitor  )  [pure virtual]
 

Implementing the pattern of double dispatching, each subclass of TAO_Constraint will call back on an InterpreterVisitor the method to handle a node of its ExpressionType.

Implemented in TAO_Noop_Constraint, TAO_Binary_Constraint, TAO_Unary_Constraint, TAO_Property_Constraint, and TAO_Literal_Constraint.

virtual TAO_Expression_Type TAO_Constraint::expr_type void   )  const [pure virtual]
 

Return the expression type represented by this node.

Implemented in TAO_Noop_Constraint, TAO_Binary_Constraint, TAO_Unary_Constraint, TAO_Property_Constraint, and TAO_Literal_Constraint.


The documentation for this class was generated from the following file:
Generated on Wed Nov 23 16:33:21 2005 for TAO_CosTrader by  doxygen 1.4.5