// create JMenuItem to add a connection between two Operators...
final JMenuItem addConnectionMI = new JMenuItem(
"Add connection between two operators");
addConnectionMI.addActionListener(new ActionListener() {
public void actionPerformed(final ActionEvent ae) {
connectionMode = new DataConnection(myself);
}
});
// create JMenuItem to add RDFTerm-Operator...
final JMenuItem rdfTermOpMI = new JMenuItem("RDFTerm");