From: sauderd@cme.nist.gov (David Sauder)

To: jmeister@lerc.nasa.gov

Cc: dp2@cme.nist.gov

Subject: Part 23 dictionary classes

Date: Mon, 17 Apr 95 12:43:37 EDT

Jeff,

This is the layout of the dictionary classes in our toolkit (when the

new changes get integrated). This matches Part 23.

// The classes in the hierarchy are the new names for our classes.

// DictionaryInstance

// |

// |

// -----------------------------------------------------------------

// | | | | | |

// | | | | | |

// | NamedType | SimpleType | Enumeration

// | | Aggr |

// | --------------- | Select

// | | | |

// | DefinedType EntityType |

// | |

// | |

// Attr ----------------------------------------

// | | | | |

// ---------- List Set Bag Array

// | | |

// | | DerivedAttr

// | |

// | InverseAttr

// |

// ExplicitAttr

Below are the names of the dictionary classes followed in parenthesis

by the name of the class in our toolkit that previously implemented

the functionality.

// DictionaryInstance (TypeDescriptor)

// Attr (AttrDescriptor)

// DerivedAttr (AttrDescriptor w/a member variable set)

// ExplicitAttr (AttrDescriptor)

// InverseAttr (InverseAttrDescriptor)

// NamedType (not explicitly defined before)

// Entity (EntityDescriptor)

// DefinedType (TypeDescriptor)

// Aggr (AggrTypeDescriptor)

// List (ListTypeDescriptor)

// Set (SetTypeDescriptor)

// Bag (BagTypeDescriptor)

// Array (ArrayTypeDescriptor)

// SimpleType (TypeDescriptor)

// Select (SelectTypeDescriptor)

// Enumeration (EnumTypeDescriptor)

If you would like to see the new code I could send it to you. You

will not be able to use it (in a practical way) until we change the

software that generates the code that initializes the dictionary data

structures to generate code based on the new names and classes.

Dave Sauder