Play のCRUD で指定しているfactoryForメソッドの実装

play.db.Model.java

public static class Manager {

public static Model.Factory factoryFor(Class<? extends Model> clazz) {

if(Model.class.isAssignableFrom(clazz)) {

Model.Factory factory = Play.pluginCollection.modelFactory(clazz);

if( factory != null) {

return factory;

}

throw new UnexpectedException("Model " + clazz.getName() + " is not managed by any plugin");

}

in句を使った、実装