Red Hat Summit Red Hat SummitApoyoConsolaDesarrolladoresIniciar una pruebaContacto

Este contenido no está disponible en el idioma seleccionado.

26.4. Seam-scoped Spring beans

With the Seam integration package, you can also use Seam's contexts as Spring 2.0-style custom scopes, which lets you declare any Spring bean in any Seam context. However, because Spring's component model was not built to support statefulness, this feature should be used with care. In particular, there are problems with clustering session- or conversation-scoped Spring beans, and care must be taken when injecting a bean or component from a wider scope into a bean of narrower scope.
Specify <seam:configure-scopes/> in a Spring bean factory configuration to make all Seam scopes available to Spring beans as custom scopes. To associate a Spring bean with a particular Seam scope, specify the desired scope in the scope attribute of the bean definition. 
<!-- Only needs to be specified once per bean factory-->
<seam:configure-scopes/>

...

<bean id="someSpringBean" class="SomeSpringBeanClass" 
      scope="seam.CONVERSATION"/>
Copy to Clipboard Toggle word wrap
You can change the scope name's prefix by specifying the prefix attribute in the configure-scopes definition. (The default prefix is seam..)
By default, a Spring component instance that is registered this way is not created automatically when referenced with @In. To automatically create an instance, you must either specify @In(create=true) at the injection point (to auto-create a specific bean), or use the default-auto-create attribute of configure-scopes to auto-create all Seam-scoped Spring beans.
The latter approach lets you inject Seam-scoped Spring beans into other Spring beans without using <seam:instance/>. However, you must be careful to maintain scope impedance. Normally, you would specify <aop:scoped-proxy/> in the bean definition, but Seam-scoped Spring beans are not compatible with <aop:scoped-proxy/>. Therefore, to inject a Seam-scoped Spring bean into a singleton, use <seam:instance/>: 
<bean id="someSpringBean" class="SomeSpringBeanClass" scope="seam.CONVERSATION"/>

...

<bean id="someSingleton">
  <property name="someSeamScopedSpringBean">
    <seam:instance name="someSpringBean" proxy="true"/>
  </property>
</bean>
Copy to Clipboard Toggle word wrap
Volver arriba
Red Hat logoGithubredditYoutubeTwitter

Aprender

Pruebe, compre y venda

Comunidades

Acerca de la documentación de Red Hat

Ayudamos a los usuarios de Red Hat a innovar y alcanzar sus objetivos con nuestros productos y servicios con contenido en el que pueden confiar. Explore nuestras recientes actualizaciones.

Hacer que el código abierto sea más inclusivo

Red Hat se compromete a reemplazar el lenguaje problemático en nuestro código, documentación y propiedades web. Para más detalles, consulte el Blog de Red Hat.

Acerca de Red Hat

Ofrecemos soluciones reforzadas que facilitan a las empresas trabajar en plataformas y entornos, desde el centro de datos central hasta el perímetro de la red.

Theme

© 2025 Red Hat