Transcript Nordisk Baltisk Sommerskole '97

Aalborg Universitet
Institut for Produktion
Business Components for Java (BC4J)
Kaj A. Jørgensen
Oracle: Business Components for Java
Page 1
Aalborg Universitet
Institut for Produktion
Types of Business Components
App. Modules
View Links
View Objects
Associations
Entity Objects
Kaj A. Jørgensen
Oracle: Business Components for Java
Page 2
Aalborg Universitet
Institut for Produktion
Types of Business Components
Entity Objects
Map corresponding tables of the database
Attributes map table columns
Default values and validation logic can be added
Associations
Active links between entity objects
Map foreign keys
Can be specified as ”compositions”
Kaj A. Jørgensen
Oracle: Business Components for Java
Page 3
Aalborg Universitet
Institut for Produktion
Associations – Based on Foreign Keys
Kaj A. Jørgensen
Oracle: Business Components for Java
Page 4
Aalborg Universitet
Institut for Produktion
Types of Business Components
View Objects
View of an entity object, e.g. subset of attributes
Selection of attributes from multiple entity objects
Specified as SQL select statements
Data can be updated through view objects
View Links
Defines master-detail queries for user interfaces
Coordination between view objects
Kaj A. Jørgensen
Oracle: Business Components for Java
Page 5
Aalborg Universitet
Institut for Produktion
View Objects
Kaj A. Jørgensen
Oracle: Business Components for Java
Page 6
Aalborg Universitet
Institut for Produktion
View Links: Complex Relationships
Kaj A. Jørgensen
Oracle: Business Components for Java
Page 7
Aalborg Universitet
Institut for Produktion
Master-Detail Views
Kaj A. Jørgensen
Oracle: Business Components for Java
Page 8
Aalborg Universitet
Institut for Produktion
Application Modules
Kaj A. Jørgensen
Oracle: Business Components for Java
Page 9
Aalborg Universitet
Institut for Produktion
JDevelope
r
Kaj A. Jørgensen
Oracle: Business Components for Java
Page 10
Aalborg Universitet
Institut for Produktion
Oracle JDeveloper
Kaj A. Jørgensen
Oracle: Business Components for Java
Page 11
Aalborg Universitet
Institut for Produktion
Oracle JDeveloper
Kaj A. Jørgensen
Oracle: Business Components for Java
Page 12
Aalborg Universitet
Institut for Produktion
Oracle JDeveloper
Integrated
Development Tool
Kaj A. Jørgensen
Oracle: Business Components for Java
Page 13
Aalborg Universitet
Institut for Produktion
Oracle JDeveloper, cont.
Kaj A. Jørgensen
Oracle: Business Components for Java
Page 14
Aalborg Universitet
Institut for Produktion
JDevelop
er
Kaj A. Jørgensen
Oracle: Business Components for Java
Page 15
Aalborg Universitet
JDevelope
r
Kaj A. Jørgensen
Institut for Produktion
Oracle: Business Components for Java
Page 16
Aalborg Universitet
Institut for Produktion
JDevelop
er
Kaj A. Jørgensen
Oracle: Business Components for Java
Page 17