CouchDB and generic DAO class

Generic GUI and CouchDB will be a good match.
Since Couch does not require scheme definition, it will be possible to develop generic  class to support CRUD features.

class DAO<T> {
 void  save(T t);
 void update(T t);
void delete(T t);
Iterable<T> query(String condition);

}

In particular, such application will be running on server side, we will not have constraint using mirror.

Actually I already created such library for DartExpenseServer mentioned in earlier post.
One of the issue was to support a mapping to/from Json object for the entity class.
In the application, this mapping methods were hand coded. But it is desireble to automate this step by a library.

Such Library should be easily implemented with mirror.