#include <Visitor.h>

Inheritance diagram for rdbModel::Visitor:

Public Types
enum	VisitorState { VCONTINUE = 0 , VDONE , VBRANCHDONE , VERROR , VERRORABORT }

Public Member Functions
virtual VisitorState	visitRdb (Rdb *)=0
	This method says if the visitor is recursive or not.

virtual VisitorState	visitTable (Table *)=0

virtual VisitorState	visitColumn (Column *)=0

virtual VisitorState	visitIndex (Index *)=0

virtual VisitorState	visitAssertion (Assertion *)=0

virtual VisitorState	visitInsertNew (InsertNew *)=0

virtual VisitorState	visitSupersede (Supersede *)=0

virtual VisitorState	visitQuery (Query *)=0

virtual VisitorState	visitSet (Set *)=0

virtual VisitorState	visitInterRow (InterRow *)=0

Detailed Description

This abstract class is the base for the visitors hierarchy; its main purpouse is to provide an abstract interface common to all the different kind of visitor; in this way the manager can hold a list of visitors that the client can start.

One likly visitor would be something which instantiates a suitable representation, e.g. in a MySQL database, of the tables described

Author: J. Bogart, but owing heavily to Visitor class in detModel; thanks to
D.Favretto and R.Giannitrapani

Definition at line 32 of file Visitor.h.

Member Enumeration Documentation

◆ VisitorState

enum rdbModel::Visitor::VisitorState

Enumerator
VCONTINUE
VDONE
VBRANCHDONE
VERROR
VERRORABORT

Definition at line 34 of file Visitor.h.

                       {
      VCONTINUE = 0,
      VDONE,         // visitor has had its fill of visiting
      VBRANCHDONE,   // don't descend further; go to next sibling, if any
      VERROR,        // error during visit; perhaps can continue, though
      VERRORABORT    // error during visit; can't handle more
    };