[JDO-736] Change Query API to make use of generics to avoid casting execute() results

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: JDO 3.2
• Component/s: api, specification, tck
• Assignee: Michael Bouschen
• Reporter: Andy Jefferson
• Created: 06/Apr/15 09:11
• Updated: 17/Feb/22 19:54
• Resolved: 30/Oct/19 20:16

Description

The query API is dated, requiring casting of results to the required type.
Let's make use of generics etc and remove the pain. This will mean changing
the API so that the resultClass (and possibly more) will need passing into the
execute() method(s). Could also specify parameters via setter rather than just on the execute.

See JDO-652 also, we need to have a consistent way of executing queries whether created using strings or typesafe, so that no casting of results is needed with either