Package org.osgi.annotation.bundle

Annotation Type Export

@Documented @Retention(CLASS) @Target(PACKAGE) public @interface Export
Mark a package to be exported from its bundle.

The package must also be annotation with the Version annotation to specify the export version of the package.

This annotation is not retained at runtime. It is for use by tools to generate bundle manifests or otherwise process the package.

  • Nested Class Summary

    Nested Classes
    Modifier and Type
    Class
    Description
    static enum 
    Export.Substitution
    Substitution policy for this package.

  • Optional Element Summary

    Optional Elements
    Modifier and Type
    Optional Element
    Description
    String[]
    attribute
    A list of attribute or directive names and values.
    Export.Substitution
    substitution
    Specify the policy for substitutably importing this package.
    String[]
    uses
    A list of package names that are used by this package.

  • Element Details

    • uses

      String[] uses
      A list of package names that are used by this package.

      If the uses directive must be omitted from the export package clause for this package, the empty value {} must be specified.

      If not specified, the uses directive for the export package clause is calculated by inspection of the classes in this package.

      Default:
      {}

    • attribute

      String[] attribute
      A list of attribute or directive names and values.

      Each string should be specified in the form:

      • "name=value" for attributes.
      • "name:type=value" for typed attributes.
      • "name:=value" for directives.
      These are added, separated by semicolons, to the export package clause.
      Default:
      {}

    • substitution

      Export.Substitution substitution
      Specify the policy for substitutably importing this package.

      Bundles that collaborate require the same class loader for types used in the collaboration. If multiple bundles export packages with collaboration types then they will have to be placed in disjoint class spaces, making collaboration impossible. Collaboration is significantly improved when bundles are willing to import exported packages; these imports will allow a framework to substitute exports for imports.

      If not specified, the Export.Substitution.CALCULATED substitution policy is used for this package.

      Default:
      CALCULATED