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<transition>  element

The <transition> element is used to catch incoming asynchronous events. The first <transition> element encountered in the document order that matches up with a specific event will be the first one executed by the CCXML interpreter.

Once a <transition> has been encountered, the tags nested within the element will then be executed in document order. If an event is thrown, and no matching <transition> is exeistent in the document, then the event will be dropped entirely, (and there will consequently be a message in the Voxeo logger indicating that an unhandled event was encountered).

Should any subsequent events arrive while a <transition> is already in progress, this second event will be placed into the event queue for later processing.


usage
<transition cond="(ECMAScript Expression)" event="(ECMAScript Expression)" name="(variable name)" state="STRING">


attributes
cond Data Type: (ECMAScript Expression) Default: True
The cond attribute specifies an ECMAScript expression which can be evaluated to 'true' or 'false'. A condition must evaluate to 'true' in order for any enclosed operations to be performed.
event Data Type: (ECMAScript Expression) Default: none - attribute is required
The event attribute denotes the matching event type used to kick off the code contained within the <transition> element. Event types can be a user-defined, dot separated ECMAScript string of any length, or, (more commonly), it can indicate a platform-defined event type. Note that the '*' suffix is a wildcard, and will match zero or more characters of any event name.

name Data Type: (variable name) Default: none - attribute is required
The name attribute denotes the unique variable that is to receive the event indicated in the <transition> element.
state Data Type: STRING Default: none - attribute is required
Indicates the current possible state(s) of the eventhandler.



parents
<eventhandler>


children
<accept> <assign> <createccxml> <createconference> <destroyconference> <dialogstart> <dialogterminate> <disconnect> <else> <elseif> <if> <join> <reject> <send> <unjoin> <var>


code samples
none


additional links
W3C Specification


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