Although discouraged as a general practice, there are circumstances access to the BeanManager is required outside of the CDI context. Seam Servlet includes a provider that retrieves the BeanManager from the Servlet context attribute named javax.enterprise.inject.spi.BeanManager, an alternative to the standard JNDI lookup mechanism defined in the JSR-299 specification. The Servlet module also handles binding the BeanManager to this attribute when the application is initialized. The work is performed in a CDI observer that is notified by the Servlet-CDI bridge provided by this very module.

Refer to the BeanManager provider chapter of the Weld Extensions reference guide for information on how to leverage the Servlet context provider to access the BeanManager from outside the CDI environment.