Configure external DB

[muuki88]

Task

Create a PreferencesPage to configure different databases.

Implementation details

Things which eventually have to be changed or extended

• externalize persistence.xml in a fragment?
• IEntityManagerService to individually create EntityManagerFactories.

[muuki88]

ConfigAdminService for Gemini

[muuki88]

Interesting if we build wit hMaven Gemini P2/Maven Repositories