Hi Artur,
thank you very much again. Now also the readling of the attributes works.
I used the getModel() & getElement() methods to get the data. Only the
casts had first to (NodeImpl) and later to (XXXImpl) - but was no problem
and now it works very well.
With the selection it worked perfect, but I wanted a method to highlight
elements without selection. The aim was to develop a search function to
finds all elements, that fullfill a certain condition. The highlighting of
all found Elements should stay even if I move one Element. Now I could
also manage that, I got the Feedbacklayer directly from the LayerManager
of the Rooteditor. The addFeedback-method I can than use on the
Feebacklayer to draw the highlighting.