Event Router

What Does Event Router Mean?

An event router, in the JSLEE industry standard for portable communications applications, is a module for creating new service instances and event delivery to all interested parties, such as software applications and computer systems.


An event router in an EMS (Enterprise Messaging System) is the program sending events and messages between software applications and computer systems throughout an enterprise. Routers themselves may also have event routers built in to allow the sharing of data by applications across networks asynchronously.

Techopedia Explains Event Router

JSLEE stands for Java Service Logic Execution Environment and is also known as JAIN SLEE due to origination under the JAIN program – part of a general trend to open up service creation in the telephony (voice and data) networks. In this industry standard, the event router also accounts for performance and load statistics. It keeps track of the activities assigned and their number or timing for event routing either globally (throughout the system or enterprise systems) or for each individual executor/thread.

An important sub module of the event router is called the executor mapper; this is an interface. This interface module is responsible for giving activities to whatever executors are available.

The event router is a very important component determining the whole container’s performance. A container is where numbers of objects reside, each of which contains programming code for specific functions of the application software.

When related to an EMS (Enterprise Messaging System) the event router allows applications across an enterprise network that has disparate software running to exchange, send and receive asynchronous data items and manage them properly through a messaging and queuing layer in the asynchronous protocol. These messages are intended for the function of software applications and services and not like messages that are exchanged between people. The queuing prevents loss of data which is a common drawback of asynchronous communications.


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Margaret Rouse
Technology Expert

Margaret is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages.