[cdi-dev] [JBoss JIRA] (CDI-45) Optional Injection Points
Martin Kouba (JIRA)
issues at jboss.org
Tue Oct 11 16:45:03 EDT 2016
[ https://issues.jboss.org/browse/CDI-45?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13305780#comment-13305780 ]
Martin Kouba commented on CDI-45:
---------------------------------
I see. We can extend {{Instance}} functionality then. Something like {{Instance.getOptional()}}? The default impl could be:
{code:java}
default Optional getOptional() {
if (isResolvable()) {
return java.util.Optional.of(get());
}
return java.util.Optional.EMPTY;
}
{code}
> Optional Injection Points
> -------------------------
>
> Key: CDI-45
> URL: https://issues.jboss.org/browse/CDI-45
> Project: CDI Specification Issues
> Issue Type: Feature Request
> Components: Resolution
> Affects Versions: 1.0
> Reporter: Stuart Douglas
> Priority: Optional
> Fix For: TBD
>
>
> There are occoasions where it may be useful for some injection points to be optional, e.g.
> @Inject
> @Optional
> MyBean bean;
> This would behave the same as a normal injection point, however it will not cause the deployment to fail if it is not satisified.
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