WebSphere Application Server Version 6.1 Feature Pack for Web Services
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Introduction: Asynchronous beans

Explore the key concepts pertaining to asynchronous beans. Asynchronous beans and asynchronous scheduling facilities offer performance enhancements for resource-intensive tasks by enabling single tasks to run as multiple tasks.

Asynchronous beans
An asynchronous bean is a Java object or enterprise bean that can be executed asynchronously by a Java 2 Platform Enterprise Edition (J2EE) application, using the J2EE context of the asynchronous bean creator.
Work objects
A work object is a type of asynchronous bean used by application components to run code in parallel or in a different J2EE context.
Asynchronous scopes
An asynchronous scope (AsynchScope object) is a unit of scoping provided for use with asynchronous beans.
Alarms
An alarm runs Java 2 Enterprise Edition (J2EE) context-aware code at a given time interval. Alarm objects are fine-grained, nonpersistent, transient, and can fire at millisecond intervals.
Subsystem monitors
A subsystem monitor is an object that monitors the health of a remote system. It uses an event source to inform all registered listeners of the health of the system.
Asynchronous scopes: Dynamic message bean scenario
Java 2 Platform Enterprise Edition (J2EE) now supports message-driven beans, but the beans are static. This scenario provides information about how to set up the environment to enable the dynamic message bean.
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Last updated: Nov 25, 2008 2:35:59 AM CST
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