org.jboss.weld.bootstrap.api

Interface CDI11Bootstrap

All Superinterfaces:

Bootstrap

All Known Implementing Classes:

WeldBootstrap

public interface CDI11Bootstrap
extends Bootstrap

An extension to Bootstrap which allows weld to perform type discovery as required by CDI 1.2. Each CDI 1.2 compatible integrator should use this interface. Application container initialization API for Weld. To initialize the container you must call, in this order:

1. #startExtensions()
2. #startContainer()
3. Bootstrap.startInitialization()
4. Bootstrap.deployBeans()
5. Bootstrap.validateBeans()
6. Bootstrap.endInitialization()

To stop the container and clean up, you must call Bootstrap.shutdown()

Author:

Pete Muir, Jozef Hartinger

Method Summary

Modifier and Type	Method and Description
Bootstrap	startContainer(java.lang.String contextId, Environment environment, Deployment deployment) Creates the application container: Checks that the services required by the environment have been provided Adds container provided services Creates and initializes the built in contexts Creates the manager
TypeDiscoveryConfiguration	startExtensions(java.lang.Iterable<Metadata<Extension>> extensions) The container bootstrap sequence begins with initializing extensions.

Methods inherited from interface org.jboss.weld.bootstrap.api.Bootstrap

deployBeans, endInitialization, getManager, loadExtensions, parse, parse, parse, shutdown, startContainer, startInitialization, validateBeans

Method Detail

startExtensions

TypeDiscoveryConfiguration startExtensions(java.lang.Iterable<Metadata<Extension>> extensions)

The container bootstrap sequence begins with initializing extensions. The container performs the following actions:

The container fires the BeforeBeanDiscovery event which allows extensions to register scopes and stereotypes. The container combines the registered scopes and stereotypes with scopes associated with the built-in contexts and built-in stereotypes and makes the resulting set available through TypeDiscoveryConfiguration.getKnownBeanDefiningAnnotations()

Afterwards, an EE7-compatible integrator performs type discovery in the following locations:

• Library jars
• EJB jars or application client jars
• The WEB-INF/classes directory of a war
• Directories in the JVM classpath

These locations are referred to as available archives hereafter.

Next, the integrator builds the set of bean defining annotations. The set contains:

• The set of annotations returned from TypeDiscoveryConfiguration.getKnownBeanDefiningAnnotations()
• Every Java annotation discovered by the integrator that is annotated with NormalScope or Stereotype

The resulting set is referred to as bean defining annotations hereafter.

Next, the integrator processes available archives according to these rules. The rules are exclusive.

If an archive:

• contains the beans.xml file and the file does not contain the bean-discovery-mode attribute, or
• contains the beans.xml file and the value of the bean-discovery-mode attribute is set to all

this archive is an explicit bean archive.

If an archive:

• contains the beans.xml file and the bean-discovery-mode attribute is set to annotated, or
• does not contain the beans.xml file nor any implementation of the Extension interface but the archive contains types annotated with a bean defining annotation or session beans

this archive is an implicit bean archive.

If an archive:

• contains the beans.xml file and the bean-discovery-mode attribute is set to none, or
• does not contain the beans.xml file and contains an implementation of the Extension interface, or
• does not contain the beans.xml file and does not contain any types annotated with a bean defining annotation nor session bean

this archive is not a bean archive.

For each explicit bean archive the integrator creates an instance of BeanDeploymentArchive representing this archive. The BeanDeploymentArchive.getBeanClasses() method returns a collection of all types present within the archive. Filtering rules defined in BeansXml.getScanning() are not required to be applied by the integrator and are applied later on by Weld. The BeanDeploymentArchive.getEjbs() method returns a collection of EJB descriptors for EJBs present in the archive.

For each implicit bean archive the integrator creates an instance of BeanDeploymentArchive representing this archive. The BeanDeploymentArchive.getBeanClasses() of the bean archive returns all the types found in the archive which are annotated with a bean defining annotations or are Session bean definitions. Filtering rules ( BeansXml.getScanning()) are not required to be applied by the integrator. The BeanDeploymentArchive.getEjbs() method returns a collection of EJB descriptors for Session beans present in the archive.

Initially, the integrator does not need to create a BeanDeploymentArchive instance for an archive which is not a bean archive. Note that although these archives are ignored when building the initial collection of bean archives, the integrator may be required to create a BeanDeploymentArchive later upon a call to Deployment.loadBeanDeploymentArchive(Class). For example, when the method is called for a extension class that is deployed in an archive that is not a bean archive.

Parameters:

extensions - discovered CDI extensions

Returns:

startContainer

Bootstrap startContainer(java.lang.String contextId,
                         Environment environment,
                         Deployment deployment)

Creates the application container:

• Checks that the services required by the environment have been provided
• Adds container provided services
• Creates and initializes the built in contexts
• Creates the manager

In addition to Bootstrap.startContainer(Environment, Deployment), this method allows an identifier (contextId) to be assigned to the container. This identifier will be used to identify this application when invoking Singleton methods.

Parameters:

contextId - the identifier of this application container instance

environment - the environment in use, by default Environments.EE

deployment - the Deployment to be booted

Throws:

java.lang.IllegalStateException - if not all the services required for the given environment are available