[Dune] [#577] Introduce method update() for GridViews

[Dune]

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User who did this - Carsten Gräser (Carsten) 

Attached to Project - Dune
Summary - Introduce method update() for GridViews
Task Type - Feature Request
Category - Grid
Status - New
Assigned To - 
Operating System - Unspecified / All
Severity - Low
Priority - Normal
Reported Version - SVN
Due in Version - Undecided
Due Date - Undecided
Details - Currently the behaviour of gridviews after a grid change is not specified. The Level- and LeafGridViews seem to be fully functional after adapt(). However this need not to be the case for any GridView so I suggent to define GridViews as invalid after adapt().

To cure an invalid GridView I propose to introduce a method GridView::update(). It could either return false or throw an exception if a GridView can't be updated.

Then all classes storing a GridView (e.g. FunctionSpaces, Basis, FEMapper, ...) update it on there own if e.g. their update method is called.

Otherwise one would have to hand new GridViews to each of those classes by hand since there is no consistent interface to create GridViews.


More information can be found at the following URL:
http://www.dune-project.org/flyspray/index.php?do=details&task_id=577

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