CollectionDatasourceImpl Queries

This is a legacy API. For new data API available since release 7.0, see Data Components.

The CollectionDatasourceImpl class and its subclasses, GroupDatasourceImpl and HierarchicalDatasourceImpl, are standard implementations of datasources that work with collections of entity instances. These datasources load data via DataManager by sending a JPQL queries to the middleware. The format of these queries is described below.