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Public Member Functions | Static Public Member Functions
TDataStd_Expression Class Reference

Expression attribute.
====================

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#include <TDataStd_Expression.hxx>

Inheritance diagram for TDataStd_Expression:
Inheritance graph
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Public Member Functions

 TDataStd_Expression ()
TCollection_ExtendedString Name () const
 build and return the expression name

void SetExpression (const TCollection_ExtendedString &E)
const TCollection_ExtendedStringGetExpression () const
TDF_AttributeListGetVariables ()
const Standard_GUIDID () const
 Returns the ID of the attribute.


void Restore (const Handle< TDF_Attribute > &With)
 Restores the backuped contents from <anAttribute>
into this one. It is used when aborting a
transaction.

Handle_TDF_Attribute NewEmpty () const
 Returns an new empty attribute from the good end
type. It is used by the copy algorithm.

void Paste (const Handle< TDF_Attribute > &Into, const Handle< TDF_RelocationTable > &RT) const
 This method is different from the "Copy" one,
because it is used when copying an attribute from
a source structure into a target structure. This
method may paste the contents of <me> into
<intoAttribute>.

The given pasted attribute can be full or empty of
its contents. But don't make a NEW! Just set the
contents!

It is possible to use <aRelocationTable> to
get/set the relocation value of a source
attribute.

virtual Standard_OStreamDump (Standard_OStream &anOS) const
 Dumps the minimum information about <me> on
<aStream>.


Static Public Member Functions

static const Standard_GUIDGetID ()
 class methods
=============

static Handle_TDataStd_Expression Set (const TDF_Label &label)
 Find, or create, an Expression attribute.
//! Expressionmethods
============


Detailed Description

       * Data Structure  of the Expression   is stored in a <br>
      string and references to variables used by the string <br>


Warning: To be consistent, each Variable referenced by the
expression must have its equivalent in the string


Constructor & Destructor Documentation


Member Function Documentation

virtual Standard_OStream& TDataStd_Expression::Dump ( Standard_OStream anOS) const [virtual]

Reimplemented from TDF_Attribute.

Implements TDF_Attribute.

Handle_TDF_Attribute TDataStd_Expression::NewEmpty ( ) const [virtual]

Implements TDF_Attribute.

void TDataStd_Expression::Paste ( const Handle< TDF_Attribute > &  intoAttribute,
const Handle< TDF_RelocationTable > &  aRelocationTable 
) const [virtual]

Implements TDF_Attribute.

void TDataStd_Expression::Restore ( const Handle< TDF_Attribute > &  anAttribute) [virtual]

Implements TDF_Attribute.

static Handle_TDataStd_Expression TDataStd_Expression::Set ( const TDF_Label label) [static]

The documentation for this class was generated from the following file: