Preferences pluginPreferences = Activator.getDefault().getPluginPreferences();
final int maxCoste = pluginPreferences.getInt(PreferenceConstants.HID_CONNECTION_BY_COST);
try {
algorithm.setFilter(new Filter() {
/**
* @see org.eclipse.zest.layouts.Filter#isObjectFiltered(java.lang.Object)
*/
public boolean isObjectFiltered(Object object) {