org.jboss.varia.scheduler
Class SingleScheduleProvider

java.lang.Object
  org.jboss.mx.util.JBossNotificationBroadcasterSupport
      org.jboss.system.ServiceMBeanSupport
          org.jboss.varia.scheduler.AbstractScheduleProvider
              org.jboss.varia.scheduler.SingleScheduleProvider

All Implemented Interfaces:

javax.management.MBeanRegistration, javax.management.NotificationBroadcaster, javax.management.NotificationEmitter, org.jboss.system.Service, org.jboss.system.ServiceMBean, AbstractScheduleProviderMBean, SingleScheduleProviderMBean

public class SingleScheduleProvider
extends AbstractScheduleProvider
implements SingleScheduleProviderMBean

This Provider adds a single Schedule to the Schedule Manager but you can create more than one of this MBeans and each will add a different Schedule even when the use the same Target. ATTENTION: This is the provider you used in the older Scheduler when you used a MBean as target.

Version:

$Revision: 57210 $

Author:

Andreas Schaefer, Dimitris Andreadis

Field Summary

Fields inherited from class org.jboss.system.ServiceMBeanSupport

log, server, SERVICE_CONTROLLER_SIG, serviceName

Fields inherited from interface org.jboss.varia.scheduler.SingleScheduleProviderMBean

OBJECT_NAME

Fields inherited from interface org.jboss.system.ServiceMBean

CREATE_EVENT, CREATED, DESTROY_EVENT, DESTROYED, FAILED, REGISTERED, START_EVENT, STARTED, STARTING, states, STOP_EVENT, STOPPED, STOPPING, UNREGISTERED

Constructor Summary

SingleScheduleProvider()
Default (no-args) Constructor

Method Summary

String	getDateFormat()
javax.management.ObjectName	getObjectName(javax.management.MBeanServer pServer, javax.management.ObjectName pName)
long	getPeriod()
long	getRepetitions()
String	getStartDate()
String	getTargetMethod()
javax.management.ObjectName	getTargetName()
void	setDateFormat(String dateFormat) Sets the date format used to parse date/times
void	setPeriod(long pPeriod) Sets the Schedule Period between two scheduled call.
void	setRepetitions(long pNumberOfCalls) Sets the initial number of scheduled calls.
void	setStartDate(String pStartDate) Sets the first scheduled call.
void	setTargetMethod(String pTargetMethod) Sets the method name to be called on the Schedulable MBean.
void	setTargetName(javax.management.ObjectName pTargetObjectName) Sets the fully qualified JMX MBean Object Name of the Schedulable MBean to be called.
void	startProviding() Add the Schedules to the Schedule Manager
void	stopProviding() Stops the Provider from providing and causing him to remove all Schedules

Methods inherited from class org.jboss.varia.scheduler.AbstractScheduleProvider

addSchedule, getScheduleManagerName, removeSchedule, setScheduleManagerName, startScheduleProviderService, startService, stopScheduleProviderService, stopService

Methods inherited from class org.jboss.system.ServiceMBeanSupport

create, createService, destroy, destroyService, getDeploymentInfo, getLog, getName, getNextNotificationSequenceNumber, getServer, getServiceName, getState, getStateString, jbossInternalCreate, jbossInternalDescription, jbossInternalDestroy, jbossInternalLifecycle, jbossInternalStart, jbossInternalStop, postDeregister, postRegister, preDeregister, preRegister, start, stop

Methods inherited from class org.jboss.mx.util.JBossNotificationBroadcasterSupport

addNotificationListener, getNotificationInfo, handleNotification, nextNotificationSequenceNumber, removeNotificationListener, removeNotificationListener, sendNotification

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.jboss.varia.scheduler.AbstractScheduleProviderMBean

getScheduleManagerName, setScheduleManagerName

Methods inherited from interface org.jboss.system.ServiceMBean

getName, getState, getStateString, jbossInternalLifecycle

Methods inherited from interface org.jboss.system.Service

create, destroy, start, stop

Constructor Detail

SingleScheduleProvider

public SingleScheduleProvider()

Default (no-args) Constructor

Method Detail

startProviding

public void startProviding()
                    throws javax.management.JMException

Description copied from class: AbstractScheduleProvider

Add the Schedules to the Schedule Manager

Specified by:

startProviding in interface AbstractScheduleProviderMBean

Specified by:

startProviding in class AbstractScheduleProvider

Throws:

javax.management.JMException

stopProviding

public void stopProviding()

Description copied from class: AbstractScheduleProvider

Stops the Provider from providing and causing him to remove all Schedules

Specified by:

stopProviding in interface AbstractScheduleProviderMBean

Specified by:

stopProviding in class AbstractScheduleProvider

getTargetName

public javax.management.ObjectName getTargetName()

Specified by:

getTargetName in interface SingleScheduleProviderMBean

Returns:

the ObjectName of the Target MBean for the timer notifications

setTargetName

public void setTargetName(javax.management.ObjectName pTargetObjectName)

Sets the fully qualified JMX MBean Object Name of the Schedulable MBean to be called.

Specified by:

setTargetName in interface SingleScheduleProviderMBean

Parameters:

pTargetObjectName - JMX MBean Object Name which should be called.

Throws:

IllegalArgumentException - If the given value is an valid Object Name.

getTargetMethod

public String getTargetMethod()

Specified by:

getTargetMethod in interface SingleScheduleProviderMBean

Returns:

Method description of the target MBean to be called

setTargetMethod

public void setTargetMethod(String pTargetMethod)
                     throws IllegalArgumentException

Sets the method name to be called on the Schedulable MBean. It can optionally be followed by an opening bracket, list of attributes (see below) and a closing bracket. The list of attributes can contain:

• NOTIFICATION which will be replaced by the timers notification instance (javax.management.Notification)
• DATE which will be replaced by the date of the notification call (java.util.Date)
• REPETITIONS which will be replaced by the number of remaining repetitions (long)
• SCHEDULER_NAME which will be replaced by the Object Name of the Scheduler (javax.management.ObjectName)
• any full qualified Class name which the Scheduler will be set a "null" value for it

An example could be: "doSomething( NOTIFICATION, REPETITIONS, java.lang.String )" where the Scheduler will pass the timer's notification instance, the remaining repetitions as int and a null to the MBean's doSomething() method which must have the following signature: doSomething( javax.management.Notification, long, java.lang.String ).

Specified by:

setTargetMethod in interface SingleScheduleProviderMBean

Parameters:

pTargetMethod - Name of the method to be called optional followed by method arguments (see above).

Throws:

IllegalArgumentException - If the given value is not of the right format

getPeriod

public long getPeriod()

Specified by:

getPeriod in interface SingleScheduleProviderMBean

Returns:

Schedule Period between two scheduled calls in Milliseconds. It will always be bigger than 0 except it returns -1 then the schedule is stopped.

setPeriod

public void setPeriod(long pPeriod)

Sets the Schedule Period between two scheduled call.

Specified by:

setPeriod in interface SingleScheduleProviderMBean

Parameters:

pPeriod - Time between to scheduled calls (after the initial call) in Milliseconds. This value must be bigger than 0.

Throws:

IllegalArgumentException - If the given value is less or equal than 0

getDateFormat

public String getDateFormat()

Specified by:

getDateFormat in interface SingleScheduleProviderMBean

Returns:

the date format

setDateFormat

public void setDateFormat(String dateFormat)

Sets the date format used to parse date/times

Specified by:

setDateFormat in interface SingleScheduleProviderMBean

Parameters:

dateFormat - The date format when empty or null the locale is used to parse dates

getStartDate

public String getStartDate()

Specified by:

getStartDate in interface SingleScheduleProviderMBean

Returns:

Date (and time) of the first scheduled. For value see #setInitialStartDate method.

setStartDate

public void setStartDate(String pStartDate)

Sets the first scheduled call. If the date is in the past the scheduler tries to find the next available start date.

Specified by:

setStartDate in interface SingleScheduleProviderMBean

Parameters:

pStartDate - Date when the initial call is scheduled. It can be either:

• NOW: date will be the current date (new Date()) plus 1 seconds
• Date as String able to be parsed by SimpleDateFormat with default format
• Date as String parsed using the date format attribute
• Milliseconds since 1/1/1970

If the date is in the past the Scheduler will search a start date in the future with respect to the initial repe- titions and the period between calls. This means that when you restart the MBean (restarting JBoss etc.) it will start at the next scheduled time. When no start date is available in the future the Scheduler will not start.
Example: if you start your Schedulable everyday at Noon and you restart your JBoss server then it will start at the next Noon (the same if started before Noon or the next day if start after Noon).

getRepetitions

public long getRepetitions()

Specified by:

getRepetitions in interface SingleScheduleProviderMBean

Returns:

Number of scheduled calls initially. If -1 then there is not limit.

setRepetitions

public void setRepetitions(long pNumberOfCalls)

Sets the initial number of scheduled calls.

Specified by:

setRepetitions in interface SingleScheduleProviderMBean

Parameters:

pNumberOfCalls - Initial Number of scheduled calls. If -1 then the number is unlimted.

Throws:

IllegalArgumentException - If the given value is less or equal than 0

getObjectName

public javax.management.ObjectName getObjectName(javax.management.MBeanServer pServer,
                                                 javax.management.ObjectName pName)
                                          throws javax.management.MalformedObjectNameException

Overrides:

getObjectName in class org.jboss.system.ServiceMBeanSupport

Throws:

javax.management.MalformedObjectNameException