Package org.osgi.service.metatype

Interface MetaTypeService

@ProviderType public interface MetaTypeService
The MetaType Service can be used to obtain meta type information for a bundle. The MetaType Service will examine the specified bundle for meta type documents to create the returned MetaTypeInformation object.

If the specified bundle does not contain any meta type documents, then a MetaTypeInformation object will be returned that wrappers any ManagedService or ManagedServiceFactory services registered by the specified bundle that implement MetaTypeProvider. Thus the MetaType Service can be used to retrieve meta type information for bundles which contain a meta type documents or which provide their own MetaTypeProvider objects.

Since:
1.1

  • Field Details

    • METATYPE_DOCUMENTS_LOCATION

      static final String METATYPE_DOCUMENTS_LOCATION
      Location of meta type documents. The MetaType Service will process each entry in the meta type documents directory.
      See Also:

    • METATYPE_CAPABILITY_NAME

      static final String METATYPE_CAPABILITY_NAME
      Capability name for meta type document processors.

      Used in Provide-Capability and Require-Capability manifest headers with the osgi.extender namespace. For example: 

       Require-Capability: osgi.extender;
  filter:="(&(osgi.extender=osgi.metatype)(version>=1.4)(!(version>=2.0)))"
      Since:
      1.3
      See Also:

    • METATYPE_SPECIFICATION_VERSION

      static final String METATYPE_SPECIFICATION_VERSION
      Compile time constant for the Specification Version of MetaType Service.

      Used in Version and Requirement annotations. The value of this compile time constant will change when the specification version of MetaType Service is updated.

      Since:
      1.4
      See Also:

  • Method Details

    • getMetaTypeInformation

      MetaTypeInformation getMetaTypeInformation(Bundle bundle)
      Return the MetaType information for the specified bundle.
      Parameters:
      bundle - The bundle for which meta type information is requested.
      Returns:
      A MetaTypeInformation object for the specified bundle.