Task List Tool Exercise

Task List: Software Requirements Specification

1. Introduction

• Create a Sakai tool that can be used as an example to explain the Sakai tool development process.

2. Tool Description

• The Task List Tool allows a user to add tasks in text form. All created tasks show up in a table like structure. A user can delete any task that he/she has created.

3. Functionality

• Add a task
• Delete a task (A user can only delete his/her tasks)
• List all created tasks for a specific work site

4. Technologies

• Use Spring's Ioc to inject needed Sakai services as well as Task Tool internal Manager and Service
• Use JSF for Model View Controller
• Persist data in the Sakai data source using Hibernate
  • Memory based storage and Spring JDBC storage examples are included as well

5. Design

Task List Manager

• It abstracts data persistence
• Iteration 2 and 3 use a simple in memory persistence model
  • Data is not saved between application server restarts
• Iteration 4 uses a Hibernate based persistence model storing data in a database
  • Data is saved between application restarts

Task List Service

• Aggregates Sakai services and Task List Manager
• Uses Ioc to get a reference to services and manager implementations
  • Depends on Sakai User Directory Service to get User specific information
  • Depends on Sakai Tool Manager to get work site specific information
  • Uses Task List Manager for data access

JSF and Backing Bean

• Provides user interface and Model View Controller functionality
• Backing bean uses IoC to get a reference to the Task List Service implementation

Diagram

6. Source Code

https://source.sakaiproject.org/contrib/programmerscafe/tags/sakai-2.2/tasklist/

7. Screenshots

Coming Soon

8. Iterations