Description

This package contains all business object class handling the data modele.

• DatabaseImpl is the main class and implements all defined actions. This class defines 3 static vectors used to store known department, employee and project. Those 3 local vectors must decrease the number of access to database object, they are also called the static polls.
  Remark:Those pool contents are update by the Synchronization class PollsSynchronizations each time a department, an employee or a project is added or removed. This task is performed while the current action is commited (when a transaction is required) otherwise, this treatment is done when the current Persistence Manager is closed.
• PollsSynchronizations defines the Synchronization Object used to update DatabaseImpl's static polls content.
• DepartmentFactory, EmployeeFactory and ProjectFactory classes define the different treatment on Department, Employee and Project

It starts and commits a transaction if needed

Call the asked action.