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Java Source Code / Java Documentation » JMX » jfoxmx » javax.management.monitor

Source Cross Reference Class Diagram Java Document (Java Doc)

javax.management .Notification

javax.management.monitor .MonitorNotification

MonitorNotification

public class MonitorNotification extends Notification (Code)

Provides definitions of the notifications sent by monitor MBeans.

The notification source and a set of parameters concerning the monitor MBean's state need to be specified when creating a new object of this class. The list of notifications fired by the monitor MBeans is the following:

Common to all kind of monitors:
- The observed object is not registered in the MBean server.
- The observed attribute is not contained in the observed object.
- The type of the observed attribute is not correct.
- Any exception (except the cases described above) occurs when trying to get the value of the observed attribute.
Common to the counter and the gauge monitors:
- The threshold high or threshold low are not of the same type as the gauge (gauge monitors).
- The threshold or the offset or the modulus are not of the same type as the counter (counter monitors).
Counter monitors only:
- The observed attribute has reached the threshold value.
Gauge monitors only:
- The observed attribute has exceeded the threshold high value.
- The observed attribute has exceeded the threshold low value.
String monitors only:
- The observed attribute has matched the "string to compare" value.
- The observed attribute has differed from the "string to compare" value.

author:
Young Yang

Field Summary
final public static String	OBSERVED_ATTRIBUTE_ERROR Notification type denoting that the observed attribute is not contained in the observed object.
final public static String	OBSERVED_ATTRIBUTE_TYPE_ERROR Notification type denoting that the type of the observed attribute is not correct.
final public static String	OBSERVED_OBJECT_ERROR Notification type denoting that the observed object is not registered in the MBean server.
final public static String	RUNTIME_ERROR Notification type denoting that a non-predefined error type has occurred when trying to get the value of the observed attribute.
final public static String	STRING_TO_COMPARE_VALUE_DIFFERED Notification type denoting that the observed attribute has differed from the "string to compare" value.
final public static String	STRING_TO_COMPARE_VALUE_MATCHED Notification type denoting that the observed attribute has matched the "string to compare" value.
final public static String	THRESHOLD_ERROR Notification type denoting that the type of the thresholds, offset or modulus is not correct.
final public static String	THRESHOLD_HIGH_VALUE_EXCEEDED Notification type denoting that the observed attribute has exceeded the threshold high value.
final public static String	THRESHOLD_LOW_VALUE_EXCEEDED Notification type denoting that the observed attribute has exceeded the threshold low value.
final public static String	THRESHOLD_VALUE_EXCEEDED Notification type denoting that the observed attribute has reached the threshold value.

Constructor Summary
	MonitorNotification(String type, Object source, long sequenceNumber, long timeStamp, String message, ObjectName observedObjectName, String observedAttribute, Object derivedValue, Object trigger) Creates a monitor notification object.

Method Summary
public Object	getDerivedGauge() Gets the derived gauge of this monitor notification.
public String	getObservedAttribute() Gets the observed attribute of this monitor notification.
public ObjectName	getObservedObject() Gets the observed object of this monitor notification.
public Object	getTrigger() Gets the threshold/string (depending on the monitor type) that triggered off this monitor notification.

Field Detail

OBSERVED_ATTRIBUTE_ERROR
final public static String OBSERVED_ATTRIBUTE_ERROR(Code)
	Notification type denoting that the observed attribute is not contained in the observed object. This notification is fired by all kinds of monitors. The value of this notification type is `jmx.monitor.error.attribute`.

OBSERVED_ATTRIBUTE_TYPE_ERROR
final public static String OBSERVED_ATTRIBUTE_TYPE_ERROR(Code)
	Notification type denoting that the type of the observed attribute is not correct. This notification is fired by all kinds of monitors. The value of this notification type is `jmx.monitor.error.type`.

OBSERVED_OBJECT_ERROR
final public static String OBSERVED_OBJECT_ERROR(Code)
	Notification type denoting that the observed object is not registered in the MBean server. This notification is fired by all kinds of monitors. The value of this notification type is `jmx.monitor.error.mbean`.

RUNTIME_ERROR
final public static String RUNTIME_ERROR(Code)
	Notification type denoting that a non-predefined error type has occurred when trying to get the value of the observed attribute. This notification is fired by all kinds of monitors. The value of this notification type is `jmx.monitor.error.runtime`.

STRING_TO_COMPARE_VALUE_DIFFERED
final public static String STRING_TO_COMPARE_VALUE_DIFFERED(Code)
	Notification type denoting that the observed attribute has differed from the "string to compare" value. This notification is only fired by string monitors. The value of this notification type is `jmx.monitor.string.differs`.

STRING_TO_COMPARE_VALUE_MATCHED
final public static String STRING_TO_COMPARE_VALUE_MATCHED(Code)
	Notification type denoting that the observed attribute has matched the "string to compare" value. This notification is only fired by string monitors. The value of this notification type is `jmx.monitor.string.matches`.

THRESHOLD_ERROR
final public static String THRESHOLD_ERROR(Code)
	Notification type denoting that the type of the thresholds, offset or modulus is not correct. This notification is fired by counter and gauge monitors. The value of this notification type is `jmx.monitor.error.threshold`.

THRESHOLD_HIGH_VALUE_EXCEEDED
final public static String THRESHOLD_HIGH_VALUE_EXCEEDED(Code)
	Notification type denoting that the observed attribute has exceeded the threshold high value. This notification is only fired by gauge monitors. The value of this notification type is `jmx.monitor.gauge.high`.

THRESHOLD_LOW_VALUE_EXCEEDED
final public static String THRESHOLD_LOW_VALUE_EXCEEDED(Code)
	Notification type denoting that the observed attribute has exceeded the threshold low value. This notification is only fired by gauge monitors. The value of this notification type is `jmx.monitor.gauge.low`.

THRESHOLD_VALUE_EXCEEDED
final public static String THRESHOLD_VALUE_EXCEEDED(Code)
	Notification type denoting that the observed attribute has reached the threshold value. This notification is only fired by counter monitors. The value of this notification type is `jmx.monitor.counter.threshold`.

Constructor Detail

MonitorNotification
MonitorNotification(String type, Object source, long sequenceNumber, long timeStamp, String message, ObjectName observedObjectName, String observedAttribute, Object derivedValue, Object trigger)(Code)
	Creates a monitor notification object. Parameters: type - The notification type. Parameters: source - The notification producer. Parameters: sequenceNumber - The notification sequence number within the source object. Parameters: timeStamp - The notification emission date. Parameters: message - The notification message. Parameters: observedObjectName - The object observed by the producer of this notification. Parameters: observedAttribute - The attribute observed by the producer of this notification. Parameters: derivedValue - The derived gauge. Parameters: trigger - The threshold/string (depending on the monitor type) that triggered the notification.

Method Detail

getDerivedGauge
public Object getDerivedGauge()(Code)
	Gets the derived gauge of this monitor notification. The derived gauge.

getObservedAttribute
public String getObservedAttribute()(Code)
	Gets the observed attribute of this monitor notification. The observed attribute.

getObservedObject
public ObjectName getObservedObject()(Code)
	Gets the observed object of this monitor notification. The observed object.

getTrigger
public Object getTrigger()(Code)
	Gets the threshold/string (depending on the monitor type) that triggered off this monitor notification. The trigger.

Fields inherited from javax.management.Notification

protected Object source(Code)(Java Doc)

Methods inherited from javax.management.Notification

public String getMessage()(Code)(Java Doc)
public long getSequenceNumber()(Code)(Java Doc)
public Object getSource()(Code)(Java Doc)
public long getTimeStamp()(Code)(Java Doc)
public String getType()(Code)(Java Doc)
public Object getUserData()(Code)(Java Doc)
public void setSequenceNumber(long sequenceNumber)(Code)(Java Doc)
public void setSource(Object source) throws java.lang.IllegalArgumentException(Code)(Java Doc)
public void setTimeStamp(long timeStamp)(Code)(Java Doc)
public void setUserData(Object userData)(Code)(Java Doc)

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