TimerListener

The TimerListener interface is used by SIP servlet applications to handle timer events. Implementations of this interface are notified when a timer set through the TimerService expires, enabling applications to execute specific actions at scheduled times.

To use this interface, the application must define its implementation in the listener element of the SIP deployment descriptor (sip.xml). Only one TimerListener can be specified per application. This interface is important for managing tasks that require time-based execution, such as periodic operations, cleanup, or retries.

Method:

timeout

void timeout(ServletTimer timer)

The timeout method is invoked to notify the application when a specific timer has expired. This callback is essential for handling time-driven events in SIP applications.

Parameters:

timer: The ServletTimer instance that has expired, allowing the application to retrieve its details and perform the necessary actions based on the timer's context.