// Input parameter node 1
InputNode paramNode1 = (InputNode) workflow.addNode(this.inputComponent);
paramNode1.setPosition(new Point(50, 50));
// Input parameter node 2
InputNode paramNode2 = (InputNode) workflow.addNode(this.inputComponent);
paramNode2.setPosition(new Point(50, 120));
// Output parameter
OutputNode outParamNode = (OutputNode) workflow.addNode(this.outputComponent);
outParamNode.setPosition(new Point(300, 220));