Class ServiceLoaderNamespace


  • public final class ServiceLoaderNamespace
    extends org.osgi.resource.Namespace
    Service Loader Capability and Requirement Namespace.

    This class defines the names for the attributes and directives for this namespace.

    All unspecified capability attributes are of one of the following types:

    • String
    • Version
    • Long
    • Double
    • List<String>
    • List<Version>
    • List<Long>
    • List<Double>
    and are used as arbitrary matching attributes for the capability. The values associated with the specified directive and attribute keys are of type String, unless otherwise indicated.

    All unspecified capability attributes, unless the attribute name starts with full stop ('.' \u002E), are also used as service properties when registering a Service Provider as a service.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      static java.lang.String CAPABILITY_REGISTER_DIRECTIVE
      The capability directive used to specify the implementation classes of the service.
      static java.lang.String SERVICELOADER_NAMESPACE
      Namespace name for service loader capabilities and requirements.
      • Fields inherited from class org.osgi.resource.Namespace

        CAPABILITY_EFFECTIVE_DIRECTIVE, CAPABILITY_USES_DIRECTIVE, CARDINALITY_MULTIPLE, CARDINALITY_SINGLE, EFFECTIVE_ACTIVE, EFFECTIVE_RESOLVE, REQUIREMENT_CARDINALITY_DIRECTIVE, REQUIREMENT_EFFECTIVE_DIRECTIVE, REQUIREMENT_FILTER_DIRECTIVE, REQUIREMENT_RESOLUTION_DIRECTIVE, RESOLUTION_MANDATORY, RESOLUTION_OPTIONAL
    • Method Summary

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Field Detail

      • SERVICELOADER_NAMESPACE

        public static final java.lang.String SERVICELOADER_NAMESPACE
        Namespace name for service loader capabilities and requirements.

        Also, the capability attribute used to specify the fully qualified name of the service type.

        See Also:
        Constant Field Values
      • CAPABILITY_REGISTER_DIRECTIVE

        public static final java.lang.String CAPABILITY_REGISTER_DIRECTIVE
        The capability directive used to specify the implementation classes of the service. The value of this attribute must be of type List<String>.

        If this directive is not specified, then all advertised Service Providers that match the service type name must be registered. If this directive is specified, then only Service Providers that match the service type name whose implementation class is contained in the value of this attribute must be registered. To not register a service for this capability use an empty string.

        See Also:
        Constant Field Values