[WICKET-4537] Add Generics to TabbedPanel: <T extends ITab>

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.5.6, 6.0.0-beta1
• Fix Version/s: 1.5.7, 6.0.0-beta2
• Component/s: wicket
• Assignee: Carl-Eric Menzel
• Reporter: Carl-Eric Menzel
• Created: 07/May/12 13:00
• Updated: 25/Jun/12 20:09
• Resolved: 21/May/12 16:06

Description

In 1.5, TabbedPanel#tabs has a wildcard signature: List<? extends ITab>. This makes it impossible to add tabs to that list, even though adding panels is one of the stated purposes of the #getTabs() method.

On #wicket, dashorst suggested giving TabbedPanel a type parameter <T extends ITab>, which I think is a good idea. It should definitely be added in 6.0.

What about 1.5.x? This would be a source-level break, but I think binaries should still work.