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Event

The Event tab is available on activities that expect an incoming event. These are activities that wait for an incoming event in a process. These activities cause the process instance to suspend until the incoming event is received. An Event tab has the following fields:

Field	Description
Candidate Event Key	Expression used to evaluate whether the incoming message is appropriate for this process. This expression is specified in XPath, and only data from the incoming event is available for use in this XPath expression. See Chapter 9, XPath for more information about XPath expressions.
Event Timeout (msec)	The amount of time a message will wait (in milliseconds) if it is received before this task is reached in the process. If the event timeout expires, an error is logged and the event is discarded. If no value is specified in this field, the message waits indefinitely. If zero is specified, the event is discarded immediately, unless this has already been reached.

The following illustrates the Event tab.

Table 5 describes the available activities with Event tabs. See the chapter for the palette you are interested in for more information about tasks that have Event tabs.

 

Table 5 Activities with Event tabs

Palette	Event Activities	Waits For...
ActiveEnterprise Adapter	Wait for Adapter Message Wait for Adapter Request	An adapter message or request.
File	Wait for File Change	The specified file to change.
General Activities	Wait	The associated Notifiy activity to execute.
HTTP	Wait for HTTP Request	An HTTP request.
JMS	Wait for JMS Queue Message Wait for JMS Topic Message	Either a JMS queue or topic message.
Manual Work	Wait For Completion	A manual task to complete.
Rendezvous	Wait for Rendezvous Message	A TIBCO Rendezvous message.

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