java.lang.Object
- javax.management.NotificationBroadcasterSupport
- - javax.management.monitor.Monitor
  - - javax.management.monitor.StringMonitor

All Implemented Interfaces:

MBeanRegistration, MonitorMBean, StringMonitorMBean, NotificationBroadcaster, NotificationEmitter
```
public class StringMonitor
extends Monitor
implements StringMonitorMBean
```
Defines a monitor MBean designed to observe the values of a string attribute.
A string monitor sends notifications as follows:
- if the attribute value matches the string to compare value, a match notification is sent. The notify match flag must be set to true.
  Subsequent matchings of the string to compare values do not cause further notifications unless the attribute value differs from the string to compare value.
- if the attribute value differs from the string to compare value, a differ notification is sent. The notify differ flag must be set to true.
  Subsequent differences from the string to compare value do not cause further notifications unless the attribute value matches the string to compare value.
Since:

1.5

Field Summary
- Fields inherited from class javax.management.monitor.Monitor
  alreadyNotified, alreadyNotifieds, capacityIncrement, dbgTag, elementCount, OBSERVED_ATTRIBUTE_ERROR_NOTIFIED, OBSERVED_ATTRIBUTE_TYPE_ERROR_NOTIFIED, OBSERVED_OBJECT_ERROR_NOTIFIED, RESET_FLAGS_ALREADY_NOTIFIED, RUNTIME_ERROR_NOTIFIED, server

Constructor Summary

Constructors
Constructor and Description

StringMonitor()
Default constructor.

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Method Summary

Methods
Modifier and Type	Method and Description
`String`	`getDerivedGauge()` Deprecated. As of JMX 1.2, replaced by `getDerivedGauge(ObjectName)`
`String`	`getDerivedGauge(ObjectName object)` Gets the derived gauge of the specified object, if this object is contained in the set of observed MBeans, or `null` otherwise.
`long`	`getDerivedGaugeTimeStamp()` Deprecated. As of JMX 1.2, replaced by `getDerivedGaugeTimeStamp(ObjectName)`
`long`	`getDerivedGaugeTimeStamp(ObjectName object)` Gets the derived gauge timestamp of the specified object, if this object is contained in the set of observed MBeans, or `0` otherwise.
`MBeanNotificationInfo[]`	`getNotificationInfo()` Returns a `NotificationInfo` object containing the name of the Java class of the notification and the notification types sent by the string monitor.
`boolean`	`getNotifyDiffer()` Gets the differing notification's on/off switch value common to all observed MBeans.
`boolean`	`getNotifyMatch()` Gets the matching notification's on/off switch value common to all observed MBeans.
`String`	`getStringToCompare()` Gets the string to compare with the observed attribute common to all observed MBeans.
`void`	`setNotifyDiffer(boolean value)` Sets the differing notification's on/off switch value common to all observed MBeans.
`void`	`setNotifyMatch(boolean value)` Sets the matching notification's on/off switch value common to all observed MBeans.
`void`	`setStringToCompare(String value)` Sets the string to compare with the observed attribute common to all observed MBeans.
`void`	`start()` Starts the string monitor.
`void`	`stop()` Stops the string monitor.

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Methods inherited from class javax.management.monitor.Monitor
addObservedObject, containsObservedObject, getGranularityPeriod, getObservedAttribute, getObservedObject, getObservedObjects, isActive, postDeregister, postRegister, preDeregister, preRegister, removeObservedObject, setGranularityPeriod, setObservedAttribute, setObservedObject

Methods inherited from class javax.management.NotificationBroadcasterSupport
addNotificationListener, handleNotification, 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 javax.management.monitor.MonitorMBean
addObservedObject, containsObservedObject, getGranularityPeriod, getObservedAttribute, getObservedObject, getObservedObjects, isActive, removeObservedObject, setGranularityPeriod, setObservedAttribute, setObservedObject

- Constructor Detail
  - StringMonitor
```
public StringMonitor()
```
    Default constructor.
- Method Detail
  - start
```
public void start()
```
    Starts the string monitor.
    
    Specified by:
    
    start in interface MonitorMBean
    
    Specified by:
    
    start in class Monitor
  - stop
```
public void stop()
```
    Stops the string monitor.
    
    Specified by:
    
    stop in interface MonitorMBean
    
    Specified by:
    
    stop in class Monitor
  - getDerivedGauge
```
public String getDerivedGauge(ObjectName object)
```
    Gets the derived gauge of the specified object, if this object is contained in the set of observed MBeans, or null otherwise.
    
    Specified by:
    
    getDerivedGauge in interface StringMonitorMBean
    
    Parameters:
    object - the name of the MBean whose derived gauge is required.
    
    Returns:
    The derived gauge of the specified object.
  - getDerivedGaugeTimeStamp
```
public long getDerivedGaugeTimeStamp(ObjectName object)
```
    Gets the derived gauge timestamp of the specified object, if this object is contained in the set of observed MBeans, or 0 otherwise.
    
    Specified by:
    
    getDerivedGaugeTimeStamp in interface StringMonitorMBean
    
    Parameters:
    object - the name of the object whose derived gauge timestamp is to be returned.
    
    Returns:
    The derived gauge timestamp of the specified object.
  - getDerivedGauge
```
@Deprecated
public String getDerivedGauge()
```
    Deprecated. As of JMX 1.2, replaced by getDerivedGauge(ObjectName)
    
    Returns the derived gauge of the first object in the set of observed MBeans.
    
    Specified by:
    
    getDerivedGauge in interface StringMonitorMBean
    
    Returns:
    The derived gauge.
  - getDerivedGaugeTimeStamp
```
@Deprecated
public long getDerivedGaugeTimeStamp()
```
    Deprecated. As of JMX 1.2, replaced by getDerivedGaugeTimeStamp(ObjectName)
    
    Gets the derived gauge timestamp of the first object in the set of observed MBeans.
    
    Specified by:
    
    getDerivedGaugeTimeStamp in interface StringMonitorMBean
    
    Returns:
    The derived gauge timestamp.
  - getStringToCompare
```
public String getStringToCompare()
```
    Gets the string to compare with the observed attribute common to all observed MBeans.
    
    Specified by:
    
    getStringToCompare in interface StringMonitorMBean
    
    Returns:
    The string value.
    See Also:
    setStringToCompare(java.lang.String)
  - setStringToCompare
```
public void setStringToCompare(String value)
                        throws IllegalArgumentException
```
    Sets the string to compare with the observed attribute common to all observed MBeans.
    
    Specified by:
    
    setStringToCompare in interface StringMonitorMBean
    
    Parameters:
    value - The string value.
    
    Throws:
    
    IllegalArgumentException - The specified string to compare is null.
    See Also:
    getStringToCompare()
  - getNotifyMatch
```
public boolean getNotifyMatch()
```
    Gets the matching notification's on/off switch value common to all observed MBeans.
    
    Specified by:
    
    getNotifyMatch in interface StringMonitorMBean
    
    Returns:
    true if the string monitor notifies when matching the string to compare, false otherwise.
    See Also:
    setNotifyMatch(boolean)
  - setNotifyMatch
```
public void setNotifyMatch(boolean value)
```
    Sets the matching notification's on/off switch value common to all observed MBeans.
    
    Specified by:
    
    setNotifyMatch in interface StringMonitorMBean
    
    Parameters:
    value - The matching notification's on/off switch value.
    See Also:
    getNotifyMatch()
  - getNotifyDiffer
```
public boolean getNotifyDiffer()
```
    Gets the differing notification's on/off switch value common to all observed MBeans.
    
    Specified by:
    
    getNotifyDiffer in interface StringMonitorMBean
    
    Returns:
    true if the string monitor notifies when differing from the string to compare, false otherwise.
    See Also:
    setNotifyDiffer(boolean)
  - setNotifyDiffer
```
public void setNotifyDiffer(boolean value)
```
    Sets the differing notification's on/off switch value common to all observed MBeans.
    
    Specified by:
    
    setNotifyDiffer in interface StringMonitorMBean
    
    Parameters:
    value - The differing notification's on/off switch value.
    See Also:
    getNotifyDiffer()
  - getNotificationInfo
```
public MBeanNotificationInfo[] getNotificationInfo()
```
    Returns a NotificationInfo object containing the name of the Java class of the notification and the notification types sent by the string monitor.
    
    Specified by:
    
    getNotificationInfo in interface NotificationBroadcaster
    
    Overrides:
    
    getNotificationInfo in class NotificationBroadcasterSupport
    
    Returns:
    the array of possible notifications.

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Vielen Dank im Voraus.

Dokument erstellt 11/06/2005, zuletzt geändert 04/03/2020
Quelle des gedruckten Dokuments:https://www.gaudry.be/de/java-api-rf-javax/management/monitor/stringmonitor.html

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Referenzen

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Inhaltsverzeichnis Haut

Class StringMonitor

Field Summary

Fields inherited from class javax.management.monitor.Monitor

Constructor Summary

Method Summary

Methods inherited from class javax.management.monitor.Monitor

Methods inherited from class javax.management.NotificationBroadcasterSupport

Methods inherited from class java.lang.Object

Methods inherited from interface javax.management.monitor.MonitorMBean

Constructor Detail

StringMonitor

Method Detail

start

stop

getDerivedGauge

getDerivedGaugeTimeStamp

getDerivedGauge

getDerivedGaugeTimeStamp

getStringToCompare

setStringToCompare

getNotifyMatch

setNotifyMatch

getNotifyDiffer

setNotifyDiffer

getNotificationInfo

Referenzen