Method and system for visually constructing XML schemas using an object-oriented model

• US 20030204481A1
• Filed: 06/27/2002
• Published: 10/30/2003
• Est. Priority Date: 07/31/2001
• Status: Abandoned Application

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Lau, Christina P.
• Application Number:
  US10/185,691
• Publication Number:
  US 20030204481A1
• Time in Patent Office: Days
• US Class Current: 707/1
• CPC Class Codes: G06F 8/34 Graphical or visual programming
• CPC Class Codes: G06F 9/4488 Object-oriented

Abstract

An object-oriented XML schema object model for use in a system for visualizing and constructing XML schemas is made up of a set of classes representative of various XML schema components or categories thereof including XML schema files, global XML schema file content, global elements, non-global elements, element content, include files, import files, type definitions generally, complex type definitions, complex type definition content, simple type definitions, built-in types, and attributes. The classes are implemented in an object-oriented programming language and are instantiated as necessary by the system in order to represent an XML schema being visually constructed. By virtue of their interrelationships, the instantiated classes cumulatively form an image or object tree which efficiently and logically represents an XML schema being visualized and/or constructed, and which may be easily navigated and modified during the execution of operations commonly encountered during XML schema visualization and construction.

Claims

1. An object-oriented programming language implementation of an XML schema comprising an XML schema file class.

2. The object-oriented programming language implementation of an xml schema of claim 1, further comprising an include file class representative of an included XML schema file.

3. The object-oriented programming language implementation of an xml schema of claim 1, further comprising an import file class representative of an imported XML schema file.

4. The object-oriented programming language implementation of an xml schema of claim 1, further comprising a global content class representative of global components of an XML schema file.

5. The object-oriented programming language implementation of an xml schema of claim 4, wherein said global content class is associated with said XML schema file class in a composition relationship.

6. The object-oriented programming language implementation of an xml schema of claim 4, further comprising a global element class descendent from said global content class representative of elements that are global to an XML schema file.

7. The object-oriented programming language implementation of an xml schema of claim 6, further comprising a non-global element class representative of elements that are not global to an XML schema file.

8. The object-oriented programming language implementation of an xml schema of claim 7, further comprising an element content class representative of components that can be contained in a global element declaration or a non-global element declaration.

9. The object-oriented programming language implementation of an xml schema of claim 8, wherein said element content class is associated with either of said global element class or said non-global element class in a composition relationship.

10. The object-oriented programming language implementation of an xml schema of claim 8, further comprising a type class descendent from said global content class representative of any of a complex type definition, a simple type definition or a built-in type definition.

11. The object-oriented programming language implementation of an xml schema of claim 10, wherein said type class is associated with said element content class.

12. The object-oriented programming language implementation of an xml schema of claim 10, further comprising a complex type definition class descendent from said type class representative of a complex type definition.

13. The object-oriented programming language implementation of an xml schema of claim 12, further comprising a complex type content class representative of components that can be contained in said complex type definition class.

14. The object-oriented programming language implementation of an xml schema of claim 13, wherein said complex type content class is associated with said complex type class in a composition relationship.

15. The object-oriented programming language implementation of an xml schema of claim 13, further comprising a simple base type class descendent from said type class representative of either of an XML schema built-in type or a simple type definition.

16. The object-oriented programming language implementation of an xml schema of claim 15, further comprising a built-in type class descendent from said simple base type class.

17. The object-oriented programming language implementation of an xml schema of claim 16, further comprising a simple type definition class descendent from said built-in type class.

18. The object-oriented programming language implementation of an xml schema of claim 17, further comprising an attribute group class descendent from said global content class.

19. The object-oriented programming language implementation of an xml schema of claim 18, further comprising an attribute class descendent from said complex type content class.

20. The object-oriented programming language implementation of an xml schema of claim 19, wherein said attribute class is related to said attribute group class in a composition relationship.

21. The object-oriented programming language implementation of an xml schema of claim 13, further comprising a group content class descendent from said complex type content class representative of a content model of an XML schema complex type definition.

22. The object-oriented programming language implementation of an xml schema of claim 21, further comprising a group class descendent from said group content class representative of a group of elements of an XML schema complex type definition content model.

24. The object-oriented programming language implementation of an xml schema of claim 8, further comprising a unique content class representative of components of an XML schema which may be used to indicate that either of an attribute value or an element value shall be unique within a certain scope.

25. The object-oriented programming language implementation of an xml schema of claim 24, wherein said unique content class is associated with said element content class in a composition relationship.

26. The object-oriented programming language implementation of claim 19, further comprising an XML schema object class from which said XML schema file class, global content class, global element class, non-global element class, element content class, type class, complex type definition class, complex type content class, simple base type class, built-in type class, simple type class, attribute group class, and attribute class are descendent.

23. The object-oriented programming language implementation of an xml schema of 21, further comprising a group scope class descendent from said group content class representative of a grouping type of a group of elements of an XML schema complex type definition content model.

27. An object-oriented programming language implementation of an XML schema comprising at least one of:

a global content class representative of global components of an XML schema file;

a global element class representative of elements that are global to an XML schema;

a non-global element class representative of elements that are not global to an XML schema;

a type class representative of any of;

a complex type definition;

a simple type definition and a built-in type definition;

a complex type definition class;

a simple base type class representative of one of an XML schema built-in type and a simple type definition;

a simple type definition class;

a built-in type definition class;

an attribute group class;

an attribute class;

a complex type content class representative of components that can be contained in a complex type definition; and

an element content class representative of components that can be contained in an element declaration.

28. A Java™

language implementation of an XML schema comprising at least one of an XML schema file class, a global content class, a global element class, a non-global element class, an element content class, a type class, a complex type definition class, a complex type content class, a simple base type class, a built-in type class, a simple type class, an attribute group class, and an attribute class.

29. A computer readable medium storing an object-oriented programming language implementation of an XML schema comprising at least one of an XML schema file class, a global content class, a global element class, a non-global element class, an element content class, a type class, a complex type definition class, a complex type content class, a simple base type class, a built-in type class, a simple type class, an attribute group class, and an attribute class.

30. A system for visually constructing XML schemas, comprising a processor;

and

memory in communication with said processor, said memory containing an object-oriented programming language implementation of an XML schema comprising at least one of;

XML schema file class;

a global content class;

a global element class;

a non-global element class;

an element content class;

a type class;

a complex type definition class, a complex type content class;

a simple base type class;

a built-in type class;

a simple type class;

an attribute group class; and

an attribute class.

31. A method of visually constructing XML schemas, said method comprising:

instantiating at least one object from any of an XML schema file class, a global content class, a global element class, a non-global element class, an element content class, a type class, a complex type definition class, a complex type content class, a simple base type class, a built-in type class, a simple type class, an attribute group class, and an attribute class; and

displaying at least one icon associated with said at least one object.