def _is_valid(self, link):

        return self._get_matches(link)
Called when the selection is changed.
dataset/ETHPy150Open bbrodriges/pholcidae/pholcidae2.py/Fetcher._is_valid--crossover with--dataset/ETHPy150Open enthought/pyface/pyface/viewer/tree_viewer.py/TreeViewer._on_tree_sel_changed