[jira] Closed: (WICKET-1477) Constructor code obstructs extendibility of components

["Martijn Dashorst (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/WICKET-1477?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Martijn Dashorst closed WICKET-1477.
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> Constructor code obstructs extendibility of components
> ------------------------------------------------------
>
>                 Key: WICKET-1477
>                 URL: https://issues.apache.org/jira/browse/WICKET-1477
>             Project: Wicket
>          Issue Type: Improvement
>          Components: wicket, wicket-extensions
>    Affects Versions: 1.3.2
>            Reporter: Rens Verhage
>            Assignee: Igor Vaynberg
>
> A lot of components contain way too much initializing code in their constructors. In my opinion a constructor ideally should only call super and set some private properties. In the current situation I'm very limited in extending components for custom usage. An example:
> I'd like to change the hierarchy of the DataGridView in a DataTable. Therefore I'd like to extend DataTable. However, since the DataTable constructs its DataGridView inside its constructor, I'm obliged to implement my own DataTable by copy pasting everything from the wicket-extensions DataTable class. I can live with that, but now I have lost the ability to add toolbars to my DataTable as the AbstractToolbar expects a wicket-extensions DataTable as one of its constructor parameters. Is it possible to revise Wicket's components and move initializing code to a init() method so I can just override 1 simple method instead of reimplementing the whole Wicket framework ;) ?

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