Package org.osgi.service.event

Interface EventConstants

  • @ProviderType
public interface EventConstants
    Defines standard names for EventHandler properties.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      static java.lang.String BUNDLE
      The Bundle object of the bundle relevant to the event.
      static java.lang.String BUNDLE_ID
      The Bundle id of the bundle relevant to the event.
      static java.lang.String BUNDLE_SIGNER
      The Distinguished Names of the signers of the bundle relevant to the event.
      static java.lang.String BUNDLE_SYMBOLICNAME
      The Bundle Symbolic Name of the bundle relevant to the event.
      static java.lang.String BUNDLE_VERSION
      The version of the bundle relevant to the event.
      static java.lang.String DELIVERY_ASYNC_ORDERED
      Event Handler delivery quality value specifying the Event Handler requires asynchronously delivered events be delivered in order.
      static java.lang.String DELIVERY_ASYNC_UNORDERED
      Event Handler delivery quality value specifying the Event Handler does not require asynchronously delivered events be delivered in order.
      static java.lang.String EVENT
      The forwarded event object.
      static java.lang.String EVENT_ADMIN_IMPLEMENTATION
      The name of the implementation capability for the Event Admin specification
      static java.lang.String EVENT_ADMIN_SPECIFICATION_VERSION
      The version of the implementation capability for the Event Admin specification
      static java.lang.String EVENT_DELIVERY
      Service Registration property specifying the delivery qualities requested by an Event Handler service.
      static java.lang.String EVENT_FILTER
      Service Registration property specifying a filter to further select Event s of interest to an Event Handler service.
      static java.lang.String EVENT_TOPIC
      Service registration property specifying the Event topics of interest to an Event Handler service.
      static java.lang.String EXCEPTION
      An exception or error.
      static java.lang.String EXCEPTION_CLASS
      The name of the exception type.
      static java.lang.String EXCEPTION_MESSAGE
      The exception message.
      static java.lang.String EXECPTION_CLASS
      Deprecated.
      As of 1.1.
      static java.lang.String MESSAGE
      A human-readable message that is usually not localized.
      static java.lang.String SERVICE
      A service reference.
      static java.lang.String SERVICE_ID
      A service's id.
      static java.lang.String SERVICE_OBJECTCLASS
      A service's objectClass.
      static java.lang.String SERVICE_PID
      A service's persistent identity.
      static java.lang.String TIMESTAMP
      The time when the event occurred, as reported by System.currentTimeMillis().

    • Field Detail

      • EVENT_TOPIC

        static final java.lang.String EVENT_TOPIC
        Service registration property specifying the Event topics of interest to an Event Handler service.

        Event handlers SHOULD be registered with this property. Each value of this property is a string that describe the topics in which the handler is interested. An asterisk ('*') may be used as a trailing wildcard. Event Handlers which do not have a value for this property must not receive events. More precisely, the value of each string must conform to the following grammar: 

          topic-description := '*' | topic ( '/*' )?
  topic := token ( '/' token )*

        The value of this property must be of type String, String[], or Collection<String>.

        See Also:
        Event, Constant Field Values

      • EVENT_FILTER

        static final java.lang.String EVENT_FILTER
        Service Registration property specifying a filter to further select Event s of interest to an Event Handler service.

        Event handlers MAY be registered with this property. The value of this property is a string containing an LDAP-style filter specification. Any of the event's properties may be used in the filter expression. Each event handler is notified for any event which belongs to the topics in which the handler has expressed an interest. If the event handler is also registered with this service property, then the properties of the event must also match the filter for the event to be delivered to the event handler.

        If the filter syntax is invalid, then the Event Handler must be ignored and a warning should be logged.

        The value of this property must be of type String.

        See Also:
        Event, Filter, Constant Field Values

      • EVENT_DELIVERY

        static final java.lang.String EVENT_DELIVERY
        Service Registration property specifying the delivery qualities requested by an Event Handler service.

        Event handlers MAY be registered with this property. Each value of this property is a string specifying a delivery quality for the Event handler.

        The value of this property must be of type String, String[], or Collection<String>.

        Since:
        1.3
        See Also:
        DELIVERY_ASYNC_ORDERED, DELIVERY_ASYNC_UNORDERED, Constant Field Values

      • DELIVERY_ASYNC_ORDERED

        static final java.lang.String DELIVERY_ASYNC_ORDERED
        Event Handler delivery quality value specifying the Event Handler requires asynchronously delivered events be delivered in order. Ordered delivery is the default for asynchronously delivered events.

        This delivery quality value is mutually exclusive with DELIVERY_ASYNC_UNORDERED. However, if both this value and DELIVERY_ASYNC_UNORDERED are specified for an event handler, this value takes precedence.

        Since:
        1.3
        See Also:
        EVENT_DELIVERY, Constant Field Values

      • DELIVERY_ASYNC_UNORDERED

        static final java.lang.String DELIVERY_ASYNC_UNORDERED
        Event Handler delivery quality value specifying the Event Handler does not require asynchronously delivered events be delivered in order. This may allow an Event Admin implementation to optimize asynchronous event delivery by relaxing ordering requirements.

        This delivery quality value is mutually exclusive with DELIVERY_ASYNC_ORDERED. However, if both this value and DELIVERY_ASYNC_ORDERED are specified for an event handler, DELIVERY_ASYNC_ORDERED takes precedence.

        Since:
        1.3
        See Also:
        EVENT_DELIVERY, Constant Field Values

      • BUNDLE_SIGNER

        static final java.lang.String BUNDLE_SIGNER
        The Distinguished Names of the signers of the bundle relevant to the event. The type of the value for this event property is String or Collection of String.
        See Also:
        Constant Field Values

      • BUNDLE_SYMBOLICNAME

        static final java.lang.String BUNDLE_SYMBOLICNAME
        The Bundle Symbolic Name of the bundle relevant to the event. The type of the value for this event property is String.
        See Also:
        Constant Field Values

      • BUNDLE_ID

        static final java.lang.String BUNDLE_ID
        The Bundle id of the bundle relevant to the event. The type of the value for this event property is Long.
        Since:
        1.1
        See Also:
        Constant Field Values

      • BUNDLE

        static final java.lang.String BUNDLE
        The Bundle object of the bundle relevant to the event. The type of the value for this event property is Bundle.
        Since:
        1.1
        See Also:
        Constant Field Values

      • BUNDLE_VERSION

        static final java.lang.String BUNDLE_VERSION
        The version of the bundle relevant to the event. The type of the value for this event property is Version.
        Since:
        1.2
        See Also:
        Constant Field Values

      • EVENT

        static final java.lang.String EVENT
        The forwarded event object. Used when rebroadcasting an event that was sent via some other event mechanism. The type of the value for this event property is Object.
        See Also:
        Constant Field Values

      • EXCEPTION

        static final java.lang.String EXCEPTION
        An exception or error. The type of the value for this event property is Throwable.
        See Also:
        Constant Field Values

      • EXCEPTION_CLASS

        static final java.lang.String EXCEPTION_CLASS
        The name of the exception type. Must be equal to the name of the class of the exception in the event property EXCEPTION. The type of the value for this event property is String.
        Since:
        1.1
        See Also:
        Constant Field Values

      • EXCEPTION_MESSAGE

        static final java.lang.String EXCEPTION_MESSAGE
        The exception message. Must be equal to the result of calling getMessage() on the exception in the event property EXCEPTION. The type of the value for this event property is String.
        See Also:
        Constant Field Values

      • MESSAGE

        static final java.lang.String MESSAGE
        A human-readable message that is usually not localized. The type of the value for this event property is String.
        See Also:
        Constant Field Values

      • SERVICE_ID

        static final java.lang.String SERVICE_ID
        A service's id. The type of the value for this event property is Long.
        See Also:
        Constant Field Values

      • SERVICE_OBJECTCLASS

        static final java.lang.String SERVICE_OBJECTCLASS
        A service's objectClass. The type of the value for this event property is String[].
        See Also:
        Constant Field Values

      • SERVICE_PID

        static final java.lang.String SERVICE_PID
        A service's persistent identity. The type of the value for this event property is String or Collection of String.
        See Also:
        Constant Field Values

      • TIMESTAMP

        static final java.lang.String TIMESTAMP
        The time when the event occurred, as reported by System.currentTimeMillis(). The type of the value for this event property is Long.
        See Also:
        Constant Field Values

      • EVENT_ADMIN_IMPLEMENTATION

        static final java.lang.String EVENT_ADMIN_IMPLEMENTATION
        The name of the implementation capability for the Event Admin specification
        Since:
        1.4
        See Also:
        Constant Field Values

      • EVENT_ADMIN_SPECIFICATION_VERSION

        static final java.lang.String EVENT_ADMIN_SPECIFICATION_VERSION
        The version of the implementation capability for the Event Admin specification
        Since:
        1.4
        See Also:
        Constant Field Values