Current State Id

[basheer]

Hi,
I am new to Spring Webflow. I recently started looking into M4. I want to know how I can find the current state id in a Java method which in invoked in "evaluate" element.
Thanks,
Basheer.

[Keith Donald]

If you need to access flow context like the current state from Java, it's usually best to implement and invoke a custom Action. See the Action interface. To invoke an action, simply use the evaluate tag like <evaluate expression="myAction"/>

Alternatively, you could always pass such context into the method you are evaluating.

Lastly, you can use the RequestContextHolder to look up flow context using a thread local.

Keith

[basheer]

Hi Keith,
Thanks for the reply. Won't it be a good idea to make RequestContext available in the flowScope, so that it can be injected into any Java class, not just the ones that implement the Action interface?
Thanks,
Basheer.

[Keith Donald]

You can inject requestContext by referring to the variable "flowRequestContext" in your flow EL.

Keith

[basheer]

Wonderful. That is what I am looking for. Where do I find all such implicit variable names (like flowScope, flowRequestContext ect.)?
Thanks,
Basheer.

[Keith Donald]

Look at ImplicitFlowVariableResolver for EL and WebFlowOgnlExpressionParser for OGNL.

Keith