[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:
default Optional getOptional() {
  if (isResolvable()) {
    return java.util.Optional.of(get());
  return java.util.Optional.EMPTY;

> 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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