Apama 10.3 | Apama Documentation | Developing Apama Applications | Developing Apama Applications in EPL | Defining Event Listeners | Defining event listeners with temporal constraints
Defining event listeners with temporal constraints
Listening for event patterns within a set time
Waiting within an event listener
Triggering event listeners at specific times
Using variables to specify times
So far this section has shown how to use event expressions to define interesting patterns of events to look for, where the events of interest depend not only on their type and content, but also on their temporal relationship to (whether they occur before or after) other events.
Being able to define temporal relationships can be useful, but typically it also needs to be constrained over some temporal interval.

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