Datascheme
This is only a draft. Changes to this are welcome.
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To open this UML diagram in Eclipse you need to install the Papyrus Plugin.
There exists additional generalization-relations that are not shown in this diagram for readability. They are as following:
| Class / baseClass | Entity | AccessibleEntity | NamedEntity |
|---|---|---|---|
| Band | X | ||
| City | X | ||
| Disc | X | ||
| Event | X | ||
| ExtLink | X | ||
| Gallery | X | ||
| Genre | X | ||
| Image | X | ||
| Instrument | X | ||
| LongLatPosition | X | ||
| Musician | X | ||
| Person | X | ||
| PlzPosition | X | ||
| Post | X | ||
| Record | X | ||
| Tour | X | ||
| Track | X | ||
| Venue | X |
Not all Entities implement all Interfaces. Here is a list about which implement which, those not listed implement none:
| Entity / Interface | Likeable | Commentable | Linkable | Authorable | Positionable | ExtLinkable | Hostable |
|---|---|---|---|---|---|---|---|
| Band | X | X | X | X | X | ||
| City | X | X | X | X | X | ||
| Event | X | X | X | X | X | ||
| Genre | X | X | |||||
| Instrument | X | X | X | ||||
| Musician | X | X | X | X | X | X | |
| Person | X | X | X | X | X | X | |
| Post | X | X | X | X | |||
| Record | X | X | X | X | |||
| Track | X | X | X | X | |||
| Tour | X | X | X | X | X | ||
| Venue | X | X | X | X | X | X | X |
Liking an entity implies receiving newsstream updates for that entity. Additionally a like may mean different things depending on the type of the entity liked:
- Band: I am a fan of this band
- City: I live in this city
- Event: /
- Genre: /
- Instrument: I play this instrument
- Musician: I am a fan of this musician
- Person: I want to follow this person
- Post: /
- Record: I own this record
- Track: /
- Tour: /
- Venue: /
- Are Cities linkable or do we store image/city relations in the
positionfield of images.