// EntryVisitor.h

#ifndef ENTRYVISITOR_H
#define ENTRYVISITOR_H

class PersonEntry;
class CompanyEntry;
class GroupEntry;

class EntryVisitor {
  public:
    virtual void visit(const PersonEntry &) = 0;
    virtual void visit(const CompanyEntry &) = 0;
    virtual void visit(const GroupEntry &) = 0;

    virtual void unVisit(const GroupEntry &) {
    } // In some cases, the composite node may need special processing after delegation to children
};

#endif