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 Detail

      • METATYPE_DOCUMENTS_LOCATION

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

      • METATYPE_CAPABILITY_NAME

        static final java.lang.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:
        Constant Field Values

      • METATYPE_SPECIFICATION_VERSION

        static final java.lang.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:
        Constant Field Values

    • Method Detail

      • 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.