Timer
public interface TimerMBean
Modifier and Type | Method | Description |
---|---|---|
Integer |
addNotification |
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 |
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 |
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 |
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 |
getAllNotificationIDs() |
Gets all timer notification identifiers registered into the list of notifications. |
Date |
getDate |
Gets a copy of the date associated to a timer notification. |
Boolean |
getFixedRate |
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 |
Gets a copy of the remaining number of occurrences associated to a timer notification. |
Vector |
getNotificationIDs |
Gets all the identifiers of timer notifications corresponding to the specified type. |
String |
getNotificationMessage |
Gets the timer notification detailed message corresponding to the specified identifier. |
String |
getNotificationType |
Gets the timer notification type corresponding to the specified identifier. |
Object |
getNotificationUserData |
Gets the timer notification user data object corresponding to the specified identifier. |
Long |
getPeriod |
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 |
Removes the timer notification corresponding to the specified identifier from the list of notifications. |
void |
removeNotifications |
Removes all the timer notifications corresponding to the specified type from the list of notifications. |
void |
setSendPastNotifications |
Sets the flag indicating whether the timer sends past notifications or not. |
void |
start() |
Starts the timer. |
void |
stop() |
Stops the timer. |
void start()
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.
void stop()
Integer addNotification(String type, String message, Object userData, Date date, long period, long nbOccurences, boolean fixedRate) throws IllegalArgumentException
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
.
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.IllegalArgumentException
- The date is null
or the period or the number of occurrences is negative.Integer addNotification(String type, String message, Object userData, Date date, long period, long nbOccurences) throws IllegalArgumentException
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.
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.IllegalArgumentException
- The date is null
or the period or the number of occurrences is negative.Integer addNotification(String type, String message, Object userData, Date date, long period) throws IllegalArgumentException
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.
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).IllegalArgumentException
- The date is null
or the period is negative.Integer addNotification(String type, String message, Object userData, Date date) throws IllegalArgumentException
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.
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.IllegalArgumentException
- The date is null
.void removeNotification(Integer id) throws InstanceNotFoundException
id
- The timer notification identifier.InstanceNotFoundException
- The specified identifier does not correspond to any timer notification in the list of notifications of this timer MBean.void removeNotifications(String type) throws InstanceNotFoundException
type
- The timer notification type.InstanceNotFoundException
- The specified type does not correspond to any timer notification in the list of notifications of this timer MBean.void removeAllNotifications()
int getNbNotifications()
Vector<Integer> getAllNotificationIDs()
Integer
objects containing all the timer notification identifiers. Vector<Integer> getNotificationIDs(String type)
type
- The timer notification type.Integer
objects containing all the identifiers of timer notifications with the specified type
. type
.String getNotificationType(Integer id)
id
- The timer notification identifier.String getNotificationMessage(Integer id)
id
- The timer notification identifier.Object getNotificationUserData(Integer id)
id
- The timer notification identifier.Date getDate(Integer id)
id
- The timer notification identifier.Long getPeriod(Integer id)
id
- The timer notification identifier.Long getNbOccurences(Integer id)
id
- The timer notification identifier.Boolean getFixedRate(Integer id)
id
- The timer notification identifier.boolean getSendPastNotifications()
void setSendPastNotifications(boolean value)
value
- The past notifications sending on/off flag value.boolean isActive()
start
method is called. It becomes inactive when the stop
method is called.true
if the timer MBean is active, false
otherwise.boolean isEmpty()
true
if the list of timer notifications is empty, false
otherwise.
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https://docs.oracle.com/en/java/javase/21/docs/api/java.management/javax/management/timer/TimerMBean.html