[UIMA-5677] uv3 internal list iterators - align with definition of previous

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0SDK-beta
• Fix Version/s: 3.0.0SDK
• Component/s: Core Java Framework
• Assignee: Marshall Schor
• Reporter: Marshall Schor
• Created: 15/Dec/17 15:16
• Updated: 15/Dec/17 16:19
• Resolved: 15/Dec/17 16:19

Description

The Java definition of previous and next says that next followed by previous followed by next etc. always returns the same value.

In our impls, this means that

• next returns the currently pointed-to object, then advances, and
• previous first goes backwards, and then returns that object

Some of our internal implementations implement previous by returning the currently pointed-to object and then goes backwards. Fix the implementations and uses (if any) (including the hasPrevious) to do this following the same conventions as Java.

Issue Links

• duplicates: UIMA-5666 uv3 previous call in list style iterators not quite right