Este conteúdo não está disponível no idioma selecionado.

5.2.3. Entity beans


Entity beans can function as a Seam component when bound to a context variable. Because entities have a persistent identity in addition to their contextual identity, entity instances are usually bound explicitly in Java code, rather than being instantiated implicitly by Seam.
Entity bean components do not support bijection or context demarcation. Nor does invocation of an entity bean trigger validation.
Entity beans are not usually used as JSF action listeners, but often function as backing beans to provide properties to JSF components for display or form submission. They are commonly used as a backing bean coupled with a stateless session bean action listener to implement create/update/delete-type functionality.
By default, entity beans are bound to the conversation context, and can never be bound to the stateless context.

Note

In a clustered environment, it is less efficient to bind an entity bean directly to a conversation (or session-scoped Seam context variable) than it is to refer to the entity bean with a stateful session bean. Not all Seam applications define entity beans as Seam components for this reason.
Seam entity bean components are instantiated with Component.getInstance() or @In(create=true), or directly instantiated with the new operator.
Voltar ao topo
Red Hat logoGithubredditYoutubeTwitter

Aprender

Experimente, compre e venda

Comunidades

Sobre a documentação da Red Hat

Ajudamos os usuários da Red Hat a inovar e atingir seus objetivos com nossos produtos e serviços com conteúdo em que podem confiar. Explore nossas atualizações recentes.

Tornando o open source mais inclusivo

A Red Hat está comprometida em substituir a linguagem problemática em nosso código, documentação e propriedades da web. Para mais detalhes veja o Blog da Red Hat.

Sobre a Red Hat

Fornecemos soluções robustas que facilitam o trabalho das empresas em plataformas e ambientes, desde o data center principal até a borda da rede.

Theme

© 2025 Red Hat