SD description classes
=============================

The Python sd_* class therefore contains the description of SD in terms of Fortran objects, it derives from the ASBase object. The ASBase class contains:


* the name of the SD name


* an attribute to classify SD as "optional" or not: optional


* a method for assigning the name: setname


* a method to check the SD:check


* various methods for printing (repr overload)

By inheritance, we define the object JEVEUXde base: class OJB (asBase). This class contains:


* the description of attributes JEVEUX (see D6.02.01 Memory Management: JEVEUX) in protected attributes


* a protected attribute on the existence or not of the object JEVEUX: __exists

As we can see, the protected attributes of the OJBsont class, which are accessed via classes derived from OJBqui, describe existing objects. There are three basic classes:


* OJBVect: a simple object in the JEVEUX sense


* OJBPtnom: a name pointer object in the JEVEUX sense


* OJBCollec: a collection object in the JEVEUX sense

There are "aliases" of these classes, for reasons of compatibility and readability:


* asObject is another name from class OJB


* ASPN is another name for class OJBPtnom


* ASVect is another name for class OJBVect


* AsColl is another name for class OJBCollec

Class OJBVect is derived into even more basic objects, which approximates the syntax of the Fortran WKVECT routine:


*ASVi: the object is an integer vector INTEGER*8


*asVr: the object is a vector of reals REAL*8


*asVc: the object is a vector of complexes COMPLEX*16


*asVl: the object is a Boolean vector LOGICAL*8


*As VK8: the object is a CHARACTER*8 character vector


*As VK16: the object is a character vector CHARACTER*16


*As VK24: the object is a CHARACTER*24 character vector


*As VK32: the object is a character vector CHARACTER*32


*As VK80: the object is a CHARACTER*80 character vector



     Note: The types used in*Code_Aster* are defined in the asterf.config.h file

The constructor for these objects can contain all the usual JEVEUX attributes. For example, for a collection:


.. code-block:: text

    TAVA = asColl (SDNom (start=19), access='nu', storage=' CONTIG ',
modellong=' CONSTANT ', type='K', ltyp=8,)