Java Platform, Enterprise Edition (Java EE) 8
The Java EE Tutorial
When your beans are annotated with a scope type, the server recognizes the application as a bean archive and no additional configuration is required. The possible scope types for CDI beans are listed in Using Scopes.
CDI uses an optional deployment descriptor named
beans.xml. Like other
Java EE deployment descriptors, the configuration settings in
beans.xml are used in addition to annotation settings in CDI classes.
The settings in
beans.xml override the annotation settings if there is
a conflict. An archive must contain the
descriptor only in certain limited situations, described in
Chapter 27, "Contexts and Dependency Injection
for Java EE: Advanced Topics".
For a web application, the
beans.xml deployment descriptor, if
present, must be in the
WEB-INF directory. For EJB modules or JAR
beans.xml deployment descriptor, if present, must be in the