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https://issues.jboss.org/browse/CDI-627?page=com.atlassian.jira.plugin.sy...
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Matej Novotny commented on CDI-627:
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To clarify, the deal is the following (please correct me if I am wrong [~struberg]):
* *In CDI 1.0* -> If there is *<NO CLASS>* with the specified name, or if the
class with the specified name is not an alternative bean class, the container
automatically detects the problem and treats it as a deployment problem.
* *Current state of spec* -> If there is *<NO BEAN>* whose bean class has the
specified name, or if no bean whose bean class has the specified name is an alternative,
the container automatically detects the problem and treats it as a deployment problem.
So basically by Vetoing the alternative (or excluding) it does not become a bean, hence
the {{beans.xml}} will be considered invalid.
fix wording regression for beans.xml alternative check introduced in
1.2
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Key: CDI-627
URL:
https://issues.jboss.org/browse/CDI-627
Project: CDI Specification Issues
Issue Type: Bug
Components: Concepts
Affects Versions: 1.2.Final
Reporter: Mark Struberg
My scenario is the following:
I have an @Alternative MockMailService class which should only be used during testing to
not send out 5k mails to customers and employees when running the unit and integration
test suite.
{code}
@Alternative
@ApplicationScoped
@Exclude(ifProjectStage=Production.class)
public class MockMailService implements MailService {...}
{code}
Of course I only need to activate it in beans.xml:
{code}
<beans>
<alternatives>
<class>org.acme.MockMailService</class>
</alternatives>
</beans>
{code}
This is perfectly fine in CDI 1.0 but might be interpreted as not be allowed in the CDI
1.2 wording paragraph 5.1.1.2. "Declaring selected alternatives for a bean
archive".
Please note that we introduced a check in CDI 1.0 purely to help the customer eagerly
detect possible wrong configuration. E.g. if he simply has a typo in the classname. It was
_not_ intended to restrict useful use cases!
What the intention was: all is fine IF one of
* There exists a class T with the given name
* That class T (or a contained producer field or producer method) is annotated with
@Alternative
* There is a Bean<T> with isAlternative() == true
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