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  1. CDI Specification Issues
  2. CDI-471

Support repeating qualifiers

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Details

    • Feature Request
    • Resolution: Done
    • Major
    • 2.0 .Final
    • None
    • Resolution

    Description

      As Java 8 provides improved support for repeating annotations, it would be valuable to percolate that support into the CDI typesafe resolution mechanism.

      For example, one could write:

      @Qualifier
@Repeatable(ContextNames.class)
public interface @ContextName {
    String value;
}

public @interface ContextNames {
    ContextName[] value();
}

      And then:

      @ContextName("ctx1")
class CamelContext1 {
}

@ContextName("ctx2")
class CamelContext2 {
}

@Uri("")
@Produces
@ContextName("ctx1")
@ContextName("ctx2")
static ProducerTemplate producerTemplate(InjectionPoint ip, @Any Instance<CamelContext> instance) {
}

      That enables to use annotations both as a CDI qualifiers and a metadata providers while still be relying on standard typesafe resolution mechanism during the deployment phase to detect unsatisfied or ambiguous dependencies.

      Support of the annotation container / list for backward compatibility could be provided as well.

      Attachments

        Issue Links

          blocks

          Sub-task - The sub-task of the issue WELD-1743 Support repeatable annotations in Annotated* layer

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Resolved

          Sub-task - The sub-task of the issue WELD-1744 Repeatable qualifiers and interceptor bindings

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Resolved
          is duplicated by

          Clarification - A clarification needed to a specification based on community feedback CDI-460 Support repeating annotations in CDI SPI

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Closed

          Activity

            People

              meetoblivion_jira John Ament (Inactive)
              astefanu@redhat.com Antonin Stefanutti
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              Dates

                Created:
                Updated:
                Resolved: