// y
InputNode y = (InputNode) workflow.addNode(this.inputComponent);
y.setPosition(new Point(10, 90));
// const0
ConstantNode const0 = (ConstantNode) workflow.addNode(this.constantComponent);
const0.setPosition(new Point(20, 180));
// if
IfNode ifNode = (IfNode) workflow.addNode(this.ifComponent);
ifNode.setPosition(new Point(170, 180));