// 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));
// Connect ports
graph.addEdge(paramNode1.getOutputPort(0), adderNode.getInputPort(0));
graph.addEdge(paramNode2.getOutputPort(0), adderNode.getInputPort(1));