/** @see org.eclipse.gef.commands.Command#execute() */
@Override
public void execute() {
node.setX(newX);
setLifeLineLayout();
if (diagram != null) {
SequenceUtil.refreshLifeLineOrder(diagram);
}
}
/** @see org.eclipse.gef.commands.Command#redo() */
@Override
public void undo() {
node.setX(oldX);
unSetLifeLineLayout();
}