E-R Modeler: A Database Modeling Toolkit for Eclipse Hui Wu wuh -at- cis.uab.edu Academic Advisor :...
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Transcript of E-R Modeler: A Database Modeling Toolkit for Eclipse Hui Wu wuh -at- cis.uab.edu Academic Advisor :...
E-R Modeler: A Database Modeling Toolkit for Eclipse
Hui Wuwuh -at- cis.uab.edu
http://www.cis.uab.edu/wuh
Academic Advisor : Dr. Jeff Graygray -at- cis.uab.edu
http://www.gray-area.org
University of Alabama at BirminghamDepartment of Computer & Information Sciences
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
E-R Modeler Architecture
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
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
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
The E-R Modeler Framework
Model explorer
Model outline view
Modelproperty view
Diagram editor
DB connection Dialog
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
CreditsLeading Developers:
Song Zhou, Chris Xu
Supporting Programmers: Hui Wu,Yuehua Lin, Jing Zhang,
Juanqin WangAdvisors:
Dr. Jeff Gray, Dr. Barrett Bryant
Demo
Thanks