JavaServer Faces and Facelets - Introducing Java EE 7 - page 23

/**
*
* @author Juneau
*/
@Named("exampleFlow2")
@FlowDefinition
public class ExampleFlow {
private static final long serialVersionUID = -7623501087369765218L;
public Flow defineFlow(FacesContext context, FlowBuilder builder){
String flowId = "example2";
builder.id("",flowId);
builder.viewNode(flowId, "/" + flowId + ".xhtml").markAsStartNode();
builder.returnNode("returnFromFlow").fromOutcome("#{flowBean.returnValue}");
return builder.getFlow();
}
}

Table 2-3 specifies the different methods that are available via the FlowBuilder.

Table 2-3. FlowBuilder Methods

Method Description

finalizer(MethodExpression) Specifies the finalizer method for the flow

finalizer(String)
flowCallNode(String string)

Specifies a call node for the flow

getFlow() Retrieves an instance of the flow

id(String, String) Specifies the flow identifier

inboundParameter(String, ValueExpression) Specifies an inbound parameter for the flow

inboundParameter(String, String)
initializer(MethodExpression)

Specifies the initializer method for the flow

initializer(String)
methodCallNode(String) Specifies a method call node

returnNode(String) Specifies the name of the exiting node

switchNode(String) Specifies the name of a switch node

viewNode(String, String)

Specifies a view node

Either technique, XML or Java, works in the same manner. However, it is a good idea to specify the flow
configuration within XML if you plan to change the way that the flow is configured, because using the Java API will
mandate a recompile.