Code generator

• US 20030056195A1
• Filed: 07/19/2001
• Published: 03/20/2003
• Est. Priority Date: 07/19/2001
• Status: Abandoned Application

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Hunt, Joseph R.
• Application Number:
  US09/909,058
• Publication Number:
  US 20030056195A1
• Time in Patent Office: Days
• US Class Current: 717/116
• CPC Class Codes: G06F 8/315 Object-oriented languages
• CPC Class Codes: G06F 8/36 Software reuse

Abstract

A method and apparatus of automating generation of object oriented code for an object. A common object repository stores a library of interrelated objects for reuse in a large software system. An object is defined by a user entering meta data defining the object and the object'"'"'s relationships with objects stored in the common object repository. Source code is created from the meta data, wherein the source code defines the object and the object'"'"'s relationships. A definition is created for the storage of an instantiation of the object using the meta data, and this definition is stored in a relational database table stored as a part of the common object repository. When an object is to be instantiated, the source code is used and the instantiation of the object is stored in the common object repository.

Claims

1. A method of automating generation of object oriented code, comprising:

receiving meta data defining an object and the object'"'"'s relationships;

creating source code from the meta data, the source code defining the object and the object'"'"'s relationships;

creating a storage definition for the storage of an instantiation of the object using the meta data; and

storing the storage definition in a common object repository.

2. The method according to claim 1, further comprising:

instantiating the object using the source code; and

storing the instantiation of the object in the common object repository.

3. The method according to claim 1, wherein the meta data is stored in a database table.

4. The method according to claim 1, wherein the storage definition is stored in a database table.

5. The method according to claim 1, wherein creating the source code further comprises:

creating an interface header file from the meta data;

creating a data object header file from the meta data; and

creating a data object implementation file from the meta data.

6. The method according to claim 5, wherein creating an interface header file from the meta data comprises:

creating a file;

generating header comments;

If the class is a derived class, as indicated by the meta data, then;

generating an “

include”

statement for base classes;

creating a globally unique identifier for the current interface;

outputting forward declarations from the meta data;

generating “

Get” and

“

Set”

methods; and

formatting the methods based on the meta data.

7. The method according to claim 5, wherein creating a data object header file from the meta data comprises:

creating a file;

generating header comments;

if the object is a derived class, generating an “

include”

statement for a base class;

generating forward declarations from the meta data;

generating constructors and destructors;

generating “

Get” and

“

Set”

method declarations; and

formatting methods based on the meta data.

8. The method according to claim 5, wherein creating a data object implementation file from the meta data further comprises:

if the object is not a factory opening a file;

generating header comments;

generating “

include”

statements for a header;

generating a constructor and a destructor;

generating a “

Get” and

a “

Set”

method; and

formatting a method based on the meta data.

9. The method according to claim 1, wherein if the object is an interface file, the creating the source code further comprises:

creating a package header file from the meta data;

creating a component header file from the meta data;

creating a component implementation file from the meta data;

creating a factory header file from the meta data; and

creating a factory implementation file from the meta data.

10. The method according to claim 9, wherein creating a package header file from the meta data further comprises:

creating a file;

outputting an interface definition; and

generating a Universally Unique IDentifier (UUID).

11. The method according to claim 9, wherein creating a component header file from the meta data comprises.

creating a file;

generating comments;

generating an “

include”

statement for a base class

listing interfaces;

outputting attributes;

outputting a constructor and a destructor declaration;

generating an interface definition table; and

formatting a method based on the meta data.

12. The method according to claim 9, wherein creating a component implementation file from the meta data comprises:

creating a file;

generating header comments;

generating an “

include”

statement;

outputting a constructor and a destructor; and

formatting a method based on the meta data.

13. The method according to claim 9, wherein creating a factory header file from the meta data comprises:

creating a file;

generating header comments;

generating an “

include”

statement;

generating a Universally Unique IDentifier (UUID); and

outputting a factory class definition.

14. The method according to claim 9, wherein creating a factory implementation file from the meta data comprises:

creating a file;

generating header comments;

generating an “

include”

statement; and

outputting a factory class implementation.

15. An electronic storage medium, storing instructions that, when executed on a programmed processor, carry out a method according to claim 1.

16. A method of automating generation of object oriented code for an object, comprising:

providing a common object repository storing a library of interrelated objects;

receiving meta data defining an object and the object'"'"'s relationships with_objects stored in the common object repository;

creating source code from the meta data, the source code defining the object and the object'"'"'s relationships;

creating a definition for the storage of an instantiation of the object using the meta data; and

storing the storage definition in the common object repository.

17. The method according to claim 16, further comprising:

instantiating the object using the source code; and

storing the instantiation of the object in the common object repository.

18. The method according to claim 16, wherein the meta data is stored in a database table.

19. The method according to claim 16, wherein the storage definition is stored in a database table.

20. The method according to claim 16, wherein creating the source code further comprises:

creating an interface header file from the meta data;

creating a data object header file from the meta data; and

creating a data object implementation file from the meta data.

21. The method according to claim 20, wherein creating an interface header file from the meta data comprises:

creating a file;

generating header comments;

If the class is a derived class, as indicated by the meta data, then;

generating an “

include”

statement for base classes;

creating a globally unique identifier for the current interface;

outputting forward declarations from the meta data;

generating “

Get” and

“

Set”

methods; and

formatting the methods based on the meta data.

22. The method according to claim 20, wherein creating a data object header file from the meta data comprises:

creating a file;

generating header comments;

if the object is a derived class, generating an “

include”

statement for a base class;

generating forward declarations from the meta data;

generating constructors and destructors;

generating “

Get” and

“

Set”

method declarations; and

formatting methods based on the meta data.

23. The method according to claim 20, wherein creating a data object implementation file from the meta data further comprises:

if the object is not a factory opening a file;

generating header comments;

generating “

include”

statements for a header;

generating a constructor and a destructor;

generating a “

Get” and

a “

Set”

method; and

formatting a method based on the meta data.

24. The method according to claim 16, wherein if the object is an interface file, the creating the source code further comprises:

creating a package header file from the meta data;

creating a component header file from the meta data;

creating a component implementation file from the meta data;

creating a factory header file from the meta data; and

creating a factory implementation file from the meta data.

25. The method according to claim 24, wherein creating a package header file from the meta data further comprises:

creating a file;

outputting an interface definition; and

generating a Universally Unique IDentifier (UUID).

26. The method according to claim 24, wherein creating a component header file from the meta data comprises.

creating a file;

generating comments;

generating an “

include”

statement for a base class

listing interfaces;

outputting attributes;

outputting a constructor and a destructor declaration;

generating an interface definition table; and

formatting a method based on the meta data.

27. The method according to claim 24, wherein creating a component implementation file from the meta data comprises:

creating a file;

generating header comments;

generating an “

include”

statement;

outputting a constructor and a destructor; and

formatting a method based on the meta data.

28. The method according to claim 24, wherein creating a factory header file from the meta data comprises:

creating a file;

generating header comments;

generating an “

include”

statement;

generating a Universally Unique IDentifier (UUID); and

outputting a factory class definition.

29. The method according to claim 24, wherein creating a factory implementation file from the meta data comprises:

creating a file;

generating header comments;

generating an “

include”

statement; and

outputting a factory class implementation.

30. An electronic storage medium, storing instructions that, when executed on a programmed processor, carry out a method according to claim 16.

31. An electronic storage medium, storing instructions that, when executed on a programmed processor, carry out a method of automating generation of object oriented code, comprising:

receiving meta data defining an object and the object'"'"'s relationships;

creating source code from the meta data, the source code defining the object and the object'"'"'s relationships;

creating a storage definition for the storage of an instantiation of the object using the meta data; and

storing the storage definition in a common object repository.

32. The electronic storage medium according to claim 31, further comprising:

instantiating the object using the source code; and

storing the instantiation of the object in the common object repository.

33. An electronic storage medium, storing instructions that, when executed on a programmed processor, carry out a method of automating generation of object oriented code, comprising:

providing a common object repository storing a library of interrelated objects;

receiving meta data defining an object and the object'"'"'s relationships with_objects stored in the common object repository;

creating source code from the meta data, the source code defining the object and the object'"'"'s relationships;

creating a definition for the storage of an instantiation of the object using the meta data; and

storing the storage definition in the common object repository.

34. The electronic storage medium according to claim 33, further comprising:

instantiating the object using the source code; and

storing the instantiation of the object in the common object repository.

35. A computer system, comprising:

a programmed processor;

storage means storing a common object repository containing a library of interrelated objects;

a user interface that receives meta data defining an object and the object'"'"'s relationships with objects stored in the common object repository;

a program segment, running on the programmed processor, that functions to;

create source code from the meta data, the source code defining the object and the object'"'"'s relationships;

create a definition for the storage of an instantiation of the object using the meta data; and

stores the storage definition in the common object repository.

36. The computer system according to claim 35, wherein the program segment further functions to:

instantiate the object using the source code; and

store the instantiation of the object in the common object repository.

37. The computer system according to claim 35, further comprising a relational database operating on the programmed processor, and wherein the meta data is stored in relational database tables.

38. The computer system according to claim 35, further comprising a relational database operating on the programmed processor, and wherein the storage definition is stored in a relational database table.