Spring Web Flows transition events. Where do they come from?

 <view-state id="reviewBooking">
        <transition on="confirm" to="bookingConfirmed" />
        <transition on="revise" to="enterBookingDetails" />
        <transition on="cancel" to="bookingCancelled" />
    </view-state>

In this XML snippet there are given three different "transition" event types. "confirm", "revise" and "cancel". Does anybody know where to get a full list of possible events and their descriptions? Or are they user defined and I just didn't realized that?

Solution

they are user defined. in your html you can use a submit button:

<input type="submit" value="Confirm" name="_eventId_confirm" id="eventId_confirmButton">

the key part being the name which will map to the event "confirm" of your flow.

you can also use an anchor:

<a href="${flowExecutionUrl}&_eventId=revise">Revise</a>

this link will map to the "revise" event of your flow.

You can use submit buttons or links depending on whether or not you need to submit forms.

I suggest you read Spring Webflow Documentation