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18.7. Allowing Plug-ins to Disable and Enable Resources Automatically
Some child or dependent resources may consistently use a disabled state to indicate that the resource is inactive. For example, a managed server in a JBoss EAP 6 domain or a web context under mod_cluster may be offline because it is inactive, and this should be treated differently than being explicitly down. In this case, the parent resource can start or stop the dependent child automatically; when not started, the child is off, but not down.
The resource plug-in itself can automatically disable and enable dependent resources by using the
AvailabilityContext.disable() and AvailabilityContext.enable() methods as part of its availability definition in its component JAR files.
Important
Be careful when allowing a resource plug-in to enable or disable a resource automatically. This potentially allows the plug-in to override whatever state the administrator has set.
For more information on writing resource plug-ins, see the Development: Writing Custom Plug-ins.
