private void addViewerListeners() { fAvailableListViewer.addDoubleClickListener( new IDoubleClickListener() { @Override public void doubleClick(DoubleClickEvent event) { handleAdd(); } }); fImportListViewer.addDoubleClickListener( new IDoubleClickListener() { @Override public void doubleClick(DoubleClickEvent event) { handleRemove(); } }); fAvailableListViewer.addSelectionChangedListener( new ISelectionChangedListener() { @Override public void selectionChanged(SelectionChangedEvent event) { updateSelectionBasedEnablement(event.getSelection(), true); } }); fImportListViewer.addSelectionChangedListener( new ISelectionChangedListener() { @Override public void selectionChanged(SelectionChangedEvent event) { updateSelectionBasedEnablement(event.getSelection(), false); } }); fFilterText.addModifyListener( new ModifyListener() { @Override public void modifyText(ModifyEvent e) { fFilterJob.cancel(); fFilterJob.schedule(200); } }); }