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Java Standard Edition (SE)

TimerMBean


compact3
javax.management.timer

Interface TimerMBean

  • All Known Implementing Classes:
    Timer


    public interface TimerMBean
    Exposes the management interface of the timer MBean.
    Since:
    1.5
    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method and Description
      Integer addNotification(String type, String message, Object userData, Date date)
      Creates a new timer notification with the specified type, message and userData and inserts it into the list of notifications with a given date and a null period and number of occurrences.
      Integer addNotification(String type, String message, Object userData, Date date, long period)
      Creates a new timer notification with the specified type, message and userData and inserts it into the list of notifications with a given date and period and a null number of occurrences.
      Integer addNotification(String type, String message, Object userData, Date date, long period, long nbOccurences)
      Creates a new timer notification with the specified type, message and userData and inserts it into the list of notifications with a given date, period and number of occurrences.
      Integer addNotification(String type, String message, Object userData, Date date, long period, long nbOccurences, boolean fixedRate)
      Creates a new timer notification with the specified type, message and userData and inserts it into the list of notifications with a given date, period and number of occurrences.
      Vector<Integer> getAllNotificationIDs()
      Gets all timer notification identifiers registered into the list of notifications.
      Date getDate(Integer id)
      Gets a copy of the date associated to a timer notification.
      Boolean getFixedRate(Integer id)
      Gets a copy of the flag indicating whether a periodic notification is executed at fixed-delay or at fixed-rate.
      int getNbNotifications()
      Gets the number of timer notifications registered into the list of notifications.
      Long getNbOccurences(Integer id)
      Gets a copy of the remaining number of occurrences associated to a timer notification.
      Vector<Integer> getNotificationIDs(String type)
      Gets all the identifiers of timer notifications corresponding to the specified type.
      String getNotificationMessage(Integer id)
      Gets the timer notification detailed message corresponding to the specified identifier.
      String getNotificationType(Integer id)
      Gets the timer notification type corresponding to the specified identifier.
      Object getNotificationUserData(Integer id)
      Gets the timer notification user data object corresponding to the specified identifier.
      Long getPeriod(Integer id)
      Gets a copy of the period (in milliseconds) associated to a timer notification.
      boolean getSendPastNotifications()
      Gets the flag indicating whether or not the timer sends past notifications.
      boolean isActive()
      Tests whether the timer MBean is active.
      boolean isEmpty()
      Tests whether the list of timer notifications is empty.
      void removeAllNotifications()
      Removes all the timer notifications from the list of notifications and resets the counter used to update the timer notification identifiers.
      void removeNotification(Integer id)
      Removes the timer notification corresponding to the specified identifier from the list of notifications.
      void removeNotifications(String type)
      Removes all the timer notifications corresponding to the specified type from the list of notifications.
      void setSendPastNotifications(boolean value)
      Sets the flag indicating whether the timer sends past notifications or not.
      void start()
      Starts the timer.
      void stop()
      Stops the timer.
    • Method Detail

      • start

        void start()
        Starts the timer.

        If there is one or more timer notifications before the time in the list of notifications, the notification is sent according to the sendPastNotifications flag and then, updated according to its period and remaining number of occurrences. If the timer notification date remains earlier than the current date, this notification is just removed from the list of notifications.

      • stop

        void stop()
        Stops the timer.
      • addNotification

        Integer addNotification(String type,
                                String message,
                                Object userData,
                                Date date,
                                long period,
                                long nbOccurences,
                                boolean fixedRate)
                         throws IllegalArgumentException
        Creates a new timer notification with the specified type, message and userData and inserts it into the list of notifications with a given date, period and number of occurrences.

        If the timer notification to be inserted has a date that is before the current date, the method behaves as if the specified date were the current date.
        For once-off notifications, the notification is delivered immediately.
        For periodic notifications, the first notification is delivered immediately and the subsequent ones are spaced as specified by the period parameter.

        Note that once the timer notification has been added into the list of notifications, its associated date, period and number of occurrences cannot be updated.

        In the case of a periodic notification, the value of parameter fixedRate is used to specify the execution scheme, as specified in Timer.

        Parameters:
        type - The timer notification type.
        message - The timer notification detailed message.
        userData - The timer notification user data object.
        date - The date when the notification occurs.
        period - The period of the timer notification (in milliseconds).
        nbOccurences - The total number the timer notification will be emitted.
        fixedRate - If true and if the notification is periodic, the notification is scheduled with a fixed-rate execution scheme. If false and if the notification is periodic, the notification is scheduled with a fixed-delay execution scheme. Ignored if the notification is not periodic.
        Returns:
        The identifier of the new created timer notification.
        Throws:
        IllegalArgumentException - The date is null or the period or the number of occurrences is negative.
        See Also:
        addNotification(String, String, Object, Date, long, long)
      • addNotification

        Integer addNotification(String type,
                                String message,
                                Object userData,
                                Date date,
                                long period,
                                long nbOccurences)
                         throws IllegalArgumentException
        Creates a new timer notification with the specified type, message and userData and inserts it into the list of notifications with a given date, period and number of occurrences.

        If the timer notification to be inserted has a date that is before the current date, the method behaves as if the specified date were the current date.
        For once-off notifications, the notification is delivered immediately.
        For periodic notifications, the first notification is delivered immediately and the subsequent ones are spaced as specified by the period parameter.

        Note that once the timer notification has been added into the list of notifications, its associated date, period and number of occurrences cannot be updated.

        In the case of a periodic notification, uses a fixed-delay execution scheme, as specified in Timer. In order to use a fixed-rate execution scheme, use addNotification(String, String, Object, Date, long, long, boolean) instead.

        Parameters:
        type - The timer notification type.
        message - The timer notification detailed message.
        userData - The timer notification user data object.
        date - The date when the notification occurs.
        period - The period of the timer notification (in milliseconds).
        nbOccurences - The total number the timer notification will be emitted.
        Returns:
        The identifier of the new created timer notification.
        Throws:
        IllegalArgumentException - The date is null or the period or the number of occurrences is negative.
        See Also:
        addNotification(String, String, Object, Date, long, long, boolean)
      • addNotification

        Integer addNotification(String type,
                                String message,
                                Object userData,
                                Date date,
                                long period)
                         throws IllegalArgumentException
        Creates a new timer notification with the specified type, message and userData and inserts it into the list of notifications with a given date and period and a null number of occurrences.

        The timer notification will repeat continuously using the timer period using a fixed-delay execution scheme, as specified in Timer. In order to use a fixed-rate execution scheme, use addNotification(String, String, Object, Date, long, long, boolean) instead.

        If the timer notification to be inserted has a date that is before the current date, the method behaves as if the specified date were the current date. The first notification is delivered immediately and the subsequent ones are spaced as specified by the period parameter.

        Parameters:
        type - The timer notification type.
        message - The timer notification detailed message.
        userData - The timer notification user data object.
        date - The date when the notification occurs.
        period - The period of the timer notification (in milliseconds).
        Returns:
        The identifier of the new created timer notification.
        Throws:
        IllegalArgumentException - The date is null or the period is negative.
      • addNotification

        Integer addNotification(String type,
                                String message,
                                Object userData,
                                Date date)
                         throws IllegalArgumentException
        Creates a new timer notification with the specified type, message and userData and inserts it into the list of notifications with a given date and a null period and number of occurrences.

        The timer notification will be handled once at the specified date.

        If the timer notification to be inserted has a date that is before the current date, the method behaves as if the specified date were the current date and the notification is delivered immediately.

        Parameters:
        type - The timer notification type.
        message - The timer notification detailed message.
        userData - The timer notification user data object.
        date - The date when the notification occurs.
        Returns:
        The identifier of the new created timer notification.
        Throws:
        IllegalArgumentException - The date is null.
      • removeNotification

        void removeNotification(Integer id)
                         throws InstanceNotFoundException
        Removes the timer notification corresponding to the specified identifier from the list of notifications.
        Parameters:
        id - The timer notification identifier.
        Throws:
        InstanceNotFoundException - The specified identifier does not correspond to any timer notification in the list of notifications of this timer MBean.
      • removeNotifications

        void removeNotifications(String type)
                          throws InstanceNotFoundException
        Removes all the timer notifications corresponding to the specified type from the list of notifications.
        Parameters:
        type - The timer notification type.
        Throws:
        InstanceNotFoundException - The specified type does not correspond to any timer notification in the list of notifications of this timer MBean.
      • removeAllNotifications

        void removeAllNotifications()
        Removes all the timer notifications from the list of notifications and resets the counter used to update the timer notification identifiers.
      • getNbNotifications

        int getNbNotifications()
        Gets the number of timer notifications registered into the list of notifications.
        Returns:
        The number of timer notifications.
      • getAllNotificationIDs

        Vector<Integer> getAllNotificationIDs()
        Gets all timer notification identifiers registered into the list of notifications.
        Returns:
        A vector of Integer objects containing all the timer notification identifiers.
        The vector is empty if there is no timer notification registered for this timer MBean.
      • getNotificationIDs

        Vector<Integer> getNotificationIDs(String type)
        Gets all the identifiers of timer notifications corresponding to the specified type.
        Parameters:
        type - The timer notification type.
        Returns:
        A vector of Integer objects containing all the identifiers of timer notifications with the specified type.
        The vector is empty if there is no timer notifications registered for this timer MBean with the specified type.
      • getNotificationType

        String getNotificationType(Integer id)
        Gets the timer notification type corresponding to the specified identifier.
        Parameters:
        id - The timer notification identifier.
        Returns:
        The timer notification type or null if the identifier is not mapped to any timer notification registered for this timer MBean.
      • getNotificationMessage

        String getNotificationMessage(Integer id)
        Gets the timer notification detailed message corresponding to the specified identifier.
        Parameters:
        id - The timer notification identifier.
        Returns:
        The timer notification detailed message or null if the identifier is not mapped to any timer notification registered for this timer MBean.
      • getNotificationUserData

        Object getNotificationUserData(Integer id)
        Gets the timer notification user data object corresponding to the specified identifier.
        Parameters:
        id - The timer notification identifier.
        Returns:
        The timer notification user data object or null if the identifier is not mapped to any timer notification registered for this timer MBean.
      • getDate

        Date getDate(Integer id)
        Gets a copy of the date associated to a timer notification.
        Parameters:
        id - The timer notification identifier.
        Returns:
        A copy of the date or null if the identifier is not mapped to any timer notification registered for this timer MBean.
      • getPeriod

        Long getPeriod(Integer id)
        Gets a copy of the period (in milliseconds) associated to a timer notification.
        Parameters:
        id - The timer notification identifier.
        Returns:
        A copy of the period or null if the identifier is not mapped to any timer notification registered for this timer MBean.
      • getNbOccurences

        Long getNbOccurences(Integer id)
        Gets a copy of the remaining number of occurrences associated to a timer notification.
        Parameters:
        id - The timer notification identifier.
        Returns:
        A copy of the remaining number of occurrences or null if the identifier is not mapped to any timer notification registered for this timer MBean.
      • getFixedRate

        Boolean getFixedRate(Integer id)
        Gets a copy of the flag indicating whether a periodic notification is executed at fixed-delay or at fixed-rate.
        Parameters:
        id - The timer notification identifier.
        Returns:
        A copy of the flag indicating whether a periodic notification is executed at fixed-delay or at fixed-rate.
      • getSendPastNotifications

        boolean getSendPastNotifications()
        Gets the flag indicating whether or not the timer sends past notifications.
        Returns:
        The past notifications sending on/off flag value.
        See Also:
        setSendPastNotifications(boolean)
      • setSendPastNotifications

        void setSendPastNotifications(boolean value)
        Sets the flag indicating whether the timer sends past notifications or not.
        Parameters:
        value - The past notifications sending on/off flag value.
        See Also:
        getSendPastNotifications()
      • isActive

        boolean isActive()
        Tests whether the timer MBean is active. A timer MBean is marked active when the start method is called. It becomes inactive when the stop method is called.
        Returns:
        true if the timer MBean is active, false otherwise.
      • isEmpty

        boolean isEmpty()
        Tests whether the list of timer notifications is empty.
        Returns:
        true if the list of timer notifications is empty, false otherwise.


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