[cdi-dev] getBeanClass return value for build-in beans?
jharting at redhat.com
Wed Aug 12 04:10:18 EDT 2015
the bean class in CDI is used for two purposes:
1) to identify the bean archive the bean belongs to (this is crucial for
2) if the bean is an alternative, interceptor or decorator the bean
class is used for matching with beans.xml enablement entries
Other than these, there are no restrictions imposed by the spec. Note
that there is absolutely no requirement that the bean class is part of
the bean types (as demonstrated by producer method/fields for example).
Therefore, you are free to use any class as a bean class that:
1) properly identifies the bean archive (i.e. is located in the bean
archive where you want the custom bean to belong)
2) if the bean is an alternative, interceptor or decorator then choose
the class whose name you want people to put to beans.xml when enabling it
What you indicated in the previous e-mails - that Weld does not work
properly if the bean class is an abstract class looks like a bug in Weld
that I will be investigating.
On 11.8.2015 12:26, arjan tijms wrote:
> This is split-off from the thread "Bean<T> that only qualifies super
> types?", where the question came up what a Bean<T> should return from
> the getBeanClass() method for the case of build-in beans.
> The JavaDoc for getBeanClass() currently says the following:
> "The bean class of the managed bean or session bean or of the bean
> that declares the producer method or field."
> See: https://javaee-spec.java.net/nonav/javadocs/javax/enterprise/inject/spi/Bean.html#getBeanClass()
> The case where a Bean<T> instance is directly created and added as
> bean to AfterBeanDiscovery in an extension does not seem to be covered
> by this documentation.
> Weld returns "this.class" here.
> See http://grepcode.com/file/repo1.maven.org/maven2/org.jboss.weld.se/weld-se/2.2.12.Final/org/jboss/weld/bean/builtin/AbstractDecorableBuiltInBean.java#71
> Is that what build-in beans should always do, and if so, should the
> JavaDoc/spec be clarified for this?
> Kind regards,
> Arjan Tijms
> cdi-dev mailing list
> cdi-dev at lists.jboss.org
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