If you have a couple of play! apps that have a common domain model, the easiest way to share that model is to put it into a module.
play new-module my-shared-model
generates an empty module in the current directory. Put your domain model in my-shared-model/apps/models, add some tests and then you have a choice: Either
1. install the module into the play! framework (see official docs here). This can then be referenced in conf/application.conf using
or 2. Put the module somewhere well-known and logically related to the apps that share it, and give it a relative reference, e.g.
projects |- app1 |- app2 |- my-shared-model
conf/application.conf of app1 and app2:
Note the module is now resolved relative to the application root.
Start up app1 (or app2) and the console should give you this happy message:
06:54:52,148 INFO ~ Starting /home/steve/projects/app1 06:54:52,158 INFO ~ Module my-shared-model is available (/home/steve/projects/app1/../my-shared-model)