Can I get the currently executing flow id from a JSP?

[ptrthomas]

Is it possible to easily get hold of information about a flow (other than the flowExecutionKey) from a JSP?

I am basically trying to enable or disable hyperlinks based on the currently executing flow id - for example:

<c:if test="${_flowId == 'foo'}">
<a href="<c:url value='bar.htm'/>">(back)</a>
</c:if>

If this is not possible, what would be the best way to approach this. Should I use a flow variable or an attribute?

[ptrthomas]

Let me rephrase the question:

From the following section of the SWF documentation:

http://static.springframework.org/sp...tion.html#flow

"attributes Additional custom attributes about the flow."

"variables The set of flow variables to create each time an execution of the flow is started."

- What can attributes and variables be used for?
- Are there examples available?
- what are the differences between attributes and variables?

[Colin Yates]

- What can attributes and variables be used for?

In our application each flow has a certain number of pre-reqs, user must be logged, the object must locked, a certain permission is required etc.

We achieve this through:

  <flow ....>
    <attribute  name="lockStrategy" value="LockForEdit"/>
    ....
  </flow>

We then have a number of FlowExecutionListeners that evaluate those attributes and ensure the pre-reqs are met (LockAwareFlowExecutionListener etc.)