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Furnace Container: CDI

Build Status License

This addon is a 'Furnace container' that provides lifecycle and service registry support for dependent addons. Other addons may depend on this to use the CDI 2.0 programming model and dependency injection framework.

Dependencies: None

Setup

This Addon requires the following installation steps.

Add configuration to pom.xml

To use this Furnace container, you must add it as a dependency in the pom.xml of your forge-addon classified artifact:

<dependency>
   <groupId>org.jboss.forge.furnace.container</groupId>
   <artifactId>cdi</artifactId>
   <classifier>forge-addon</classifier>
   <version>${version}</version>
</dependency>

Add META-INF/beans.xml file

In order for CDI to detect your classes, you must add the src/main/resources/META-INF/beans.xml file to your project.

Features

Full CDI support

Your addon may use the full CDI specification, provide CDI extensions, and do anything that would otherwise be possible in a Java SE or Java EE CDI environment.

Automatic service registration

CDI Beans will automatically be added to the local ServiceRegistry for use in other addons.

public class ServiceX {
   // Will be available for use in dependent addons
}
Injection of services

Any types declared as dependencies of your addon will be made available via the dependency injection model. Service wiring occurs automatically.

public class ConsumerY {
   @Inject private ServiceX service; // From some other Addon
}
Observable container events

The Furnace container publishes several observable events to all addons throughout their lifecycle.

Event Type Description

@PostStartup

Fired when this addon is has been fully started by the Furnace container, and may begin its work.

@PreShutdown

Fired when this addon is about to be shut down by the Furnace container.
Automatic event propagation

This container will automatically re-fire any CDI events for all other addons to observe. It also automatically listens for remote events and re-fires them for your local beans to observe.

Injection of Furnace APIs

This container also allows for injection of some of the core Furnace APIs into your objects. Below is a list of all injectable API types.

Injectable Type Description

@Inject private Furnace service;

A handle to the Furnace container in which this addon is being run.

@Inject private Addon self;

A reference to this addon itself. Allows access to the addon version, ClassLoader, service registry, current lifecycle status, and addon dependencies.

@Inject private AddonRegistry addonRegistry;

A reference to the global Furnace addon registry - can be used to retrieve addon and exported service instances.

@Inject private AddonRepository repository;

A reference to the repository in which this addon is deployed. Can be used to

@Inject private ServiceRegistry serviceRegistry;

A reference to the service registry of this addon. Can be used to retrieve service instances from this addon at runtime.