-- Created on: 1997-05-09
-- Created by: Christian CAILLET
-- Copyright (c) 1997-1999 Matra Datavision
-- Copyright (c) 1999-2014 OPEN CASCADE SAS
--
-- This file is part of Open CASCADE Technology software library.
--
-- This library is free software; you can redistribute it and/or modify it under
-- the terms of the GNU Lesser General Public License version 2.1 as published
-- by the Free Software Foundation, with special exception defined in the file
-- OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
-- distribution for complete text of the license and disclaimer of any warranty.
--
-- Alternatively, this file may be used under the terms of Open CASCADE
-- commercial license or contractual agreement.

class Plex  from StepData    inherits Described  from StepData

    ---Purpose : A Plex (for Complex) Entity is defined as a list of Simple
    --           Members ("external mapping")
    --           The types of these members must be in alphabetic order

uses CString,
     SequenceOfTransient from TColStd,
     HSequenceOfAsciiString from TColStd,
     Check from Interface,  EntityIterator from Interface,
     ECDescr from StepData, Simple from StepData, Field from StepData

raises InterfaceMismatch

is

    Create (descr : ECDescr) returns Plex;
    ---Purpose : Creates a Plex (empty). The complete creation is made by the
    --           ECDescr itself, by calling Add

    Add (me : mutable; member : Simple);
    ---Purpose : Adds a member to <me>

    ECDescr (me) returns ECDescr;
    ---Purpose : Returns the Description as for a Plex

    	--  inherited

    IsComplex (me) returns Boolean;
    ---Purpose : Returns False


    Matches (me; steptype : CString) returns Boolean;
    ---Purpose : Tells if a step type is matched by <me>
    --           For a Simple Entity : own type or super type
    --           For a Complex Entity : one of the members

    As (me; steptype : CString) returns Simple;
    ---Purpose : Returns a Simple Entity which matches with a Type in <me> :
    --           For a Simple Entity : me if it matches, else a null handle
    --           For a Complex Entity : the member which matches, else null

    HasField (me; name : CString) returns Boolean;
    ---Purpose : Tells if a Field brings a given name

    Field (me; name : CString) returns Field
    ---Purpose : Returns a Field from its name; read-only
    	raises InterfaceMismatch;
    --           raises if no Field for <name>
    ---C++ : return const &

    CField (me : mutable; name : CString) returns Field
    ---Purpose : Returns a Field from its name; read or write
    	raises InterfaceMismatch;
    --           raises if no Field for <name>
    ---C++ : return &

    	-- more specific

    NbMembers (me) returns Integer;
    ---Purpose : Returns the count of simple members

    Member (me; num : Integer) returns Simple;
    ---Purpose : Returns a simple member from its rank

    TypeList (me) returns HSequenceOfAsciiString;
    ---Purpose : Returns the actual list of members types

    	--

    Check  (me; ach  : in out Check from Interface);
    ---Purpose : Fills a Check by using its Description

    Shared (me; list : in out EntityIterator from Interface);
    ---Purpose : Fills an EntityIterator with entities shared by <me>

fields

    themembers : SequenceOfTransient;

end Plex;