Sorting Entity Instances
Often, you want to retrieve multiple instances of a given entity and list them in a particular order. The
service.xml file lets you specify the default order of your entities.
Suppose you want to return entities by their creation date. It’s easy to specify these default orderings:
<order> <order-column name="createDate" order-by="desc" /> </order>
You can enter
desc for ascending or descending order.
Now you know how to order your service entities.