1. E-R Modeler: A Database Modeling Toolkit for Eclipse Hui Wu wuh -at- cis.uab.edu http://www.cis.uab.edu/wuh Academic Advisor : Dr. Jeff Gray gray -at- cis.uab.edu http://www.gray-area.org University of Alabama at Birmingham Department of Computer & Information Sciences

2. Motivation Enhance DB Modeling Capability of Eclipse Provide capabilities such as XML and DDL generation, DB connection as well as DB schema creation Support reverse engineering of existing databases

3. E-R Modeler Architecture

4. System Design – Primary Function Modules Diagram editor –A UML-style diagramming tool to construct and modify E-R models. Outline view and Property view –Communicate and synchronize with the drawing Canvas to display the outline, composition and properties of entities and relationships File IO –Store/load the E-R diagram to/from a binary file –Store the internal data structure (entities, attributes, primary keys and relationships, etc) into an XML file

5. System Design – Primary Function Modules (cont’d) Data Definition Language (DDL) generation –Load the XML file as a DOM tree and traverse the DOM tree –Generate physical DDL based on the underlying database DB table generation –Connect to the underlying database (Access/SQL Server/SQL Plus) –Execute the physical DDL to create database schema

6. Implementation – What extension points we extent perspectives – framework newWizards – new project & files editors – diagram & XML & SQL editor actionSets – toolbar actions propertyPages – property view preferencePages – color changing of characters in the XML editor toc – online help

7. The E-R Modeler Framework Model explorer Model outline view Model property view Diagram editor DB connection Dialog

8. Future Work Implement support for reverse engineering Provide automatic layout support Support for additional file types Enrich ER object types like weak entity Add extension-points for other plug-ins to build on

9. Credits Leading Developers: Song Zhou, Chris Xu Supporting Programmers: Hui Wu, Yuehua Lin, Jing Zhang, Juanqin Wang Advisors: Dr. Jeff Gray, Dr. Barrett Bryant

10. Demo

11. Thanks