This section describes the asynchronous thread processing performed by using WorkManager.

The following table describes the organization of this section.

Table 10-14 Organization of this section (asynchronous thread processing by using WorkManager)

Category	Title	Reference location
Explanation	The daemon Work and non-daemon Work	10.4.1
	The thread pool and queues used in the non-daemon Work	10.4.2
	The life cycle of WorkManager, daemon Work and the non-daemon Work	10.4.3
Implementation	Developing applications by using WorkManager	10.4.4
Settings	Settings in the execution environment	10.4.5

# There is no specific description of Operation and Notes for this functionality.

With the asynchronous thread processing performed by using WorkManager, you can execute the asynchronous processing of threads in the Java EE environment. Because the threads managed by a container are used in the background, you can execute tasks safely.

Implement the process to be executed asynchronously, with Work. The process implemented with Work is scheduled when you execute the schedule method of WorkManager in EJBs or servlets, which are the schedule sources. You can check the schedule status by using WorkItem, which is returned by the schedule method of WorkManager.

To use WorkManager, define the information related to WorkManager, in resource-ref tag of EJB properties or servlet properties. The EJB or servlet uses WorkManager by performing lookup with the name defined in res-ref-name tag at the time of deployment.

Organization of this section

10.4.1 Daemon Work and non-daemon Work

10.4.2 Thread pool and queues used in non-daemon Work

10.4.3 Life cycle of WorkManager, daemon Work and non-daemon Work

10.4.4 Developing applications by using WorkManager

10.4.5 Settings in the execution environment