Email-Backend

Team Members:

Ali Hassan ElSharawy
Basel Ahmed
Louay Magdy

Design Patterns used:

1- Delegation Pattern:
   - Relation between services and controllers
   - Relation between services and models
   - Relation between some services such as userFileService and MessageService

2- Interface Pattern:
   - Relation between MessageCriteria class and MessageService
   - Relation between UserCriteria class and UserService
 
3- Prototype Pattern:
   - Both models objects can be cloned
 
4- Filter Pattern
   - Applied in searching for messages and contacts
 
5- Marker Interface Pattern
   - in cloning objects , and serialization and deserialization of Json Objects

The Design Decisions made:

- Sending messages can be from one user to multiple users
- User can use only one custom folder to drag the needed files inside
- In searching for messages by "to" attribute if you put multiple users, you will get messages to either of them (inclusively)

UML: