com.azul.zing.management

Class MemoryNotificationInfo

java.lang.Object

com.azul.zing.management.MemoryNotificationInfo

public class MemoryNotificationInfo
extends java.lang.Object

Memory notification information.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	JAVA_HEAP_USING_MORE_MEMORY_THAN_INITIALLY_RESERVED Notification that the process is using more Java Heap memory than was initially reserved for the entire Java Heap; In most cases, the -Xmx command line option is used to specify the amount of memory to be reserved by the process for the Java Heap; When the process starts, there may be slight differences between the amount specified and the amount initially reserved; This is an event notification and requires only that a notification listener be added.
static java.lang.String	PERCENT_JAVA_HEAP_OCCUPIED_AFTER_COLLECTION_THRESHOLD_EXCEEDED Notification that the percentage of Jave Heap occupied after the garbage collection to remove unreachable objects is a higher percentage than the threshold specified using MemoryMXBean.setPercentJavaHeapOccupiedAfterCollectionThreshold(double); This is a threshold notification and requires that a threshold value greater than zero be set using the MemoryMXBean.setPercentJavaHeapOccupiedAfterCollectionThreshold(double) method.

Constructor Summary

Constructors

Constructor and Description
MemoryNotificationInfo(java.lang.String poolName, java.lang.String notificationReason, long count, MemoryUsage memoryUsage) Constructs a MemoryNotificationInfo instance.

Method Summary

Methods

Modifier and Type	Method and Description
static MemoryNotificationInfo	from(javax.management.openmbean.CompositeData cd) Constructs a MemoryNotificationInfo object from the CompositeData passed.
long	getCount()
MemoryUsage	getMemoryUsage()
java.lang.String	getNotificationReason()
java.lang.String	getPoolName()

Methods inherited from class java.lang.Object

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

Field Detail

JAVA_HEAP_USING_MORE_MEMORY_THAN_INITIALLY_RESERVED

public static final java.lang.String JAVA_HEAP_USING_MORE_MEMORY_THAN_INITIALLY_RESERVED

Notification that the process is using more Java Heap memory than was initially reserved for the entire Java Heap; In most cases, the -Xmx command line option is used to specify the amount of memory to be reserved by the process for the Java Heap; When the process starts, there may be slight differences between the amount specified and the amount initially reserved; This is an event notification and requires only that a notification listener be added.

See Also:

Constant Field Values

PERCENT_JAVA_HEAP_OCCUPIED_AFTER_COLLECTION_THRESHOLD_EXCEEDED

public static final java.lang.String PERCENT_JAVA_HEAP_OCCUPIED_AFTER_COLLECTION_THRESHOLD_EXCEEDED

Notification that the percentage of Jave Heap occupied after the garbage collection to remove unreachable objects is a higher percentage than the threshold specified using MemoryMXBean.setPercentJavaHeapOccupiedAfterCollectionThreshold(double); This is a threshold notification and requires that a threshold value greater than zero be set using the MemoryMXBean.setPercentJavaHeapOccupiedAfterCollectionThreshold(double) method.

See Also:

Constant Field Values

Constructor Detail

MemoryNotificationInfo

public MemoryNotificationInfo(java.lang.String poolName,
                      java.lang.String notificationReason,
                      long count,
                      MemoryUsage memoryUsage)

Constructs a MemoryNotificationInfo instance.

Parameters:

poolName - The memory pool name.

notificationReason - The reason for the notification.

count - The number of times the threshold has been crossed

memoryUsage - The memory usage snapshot.

Throws:

java.lang.NullPointerException - if poolName or notificationReason or memoryUsage is null

Method Detail

from

public static MemoryNotificationInfo from(javax.management.openmbean.CompositeData cd)

Constructs a MemoryNotificationInfo object from the CompositeData passed.

Parameters:

cd - The CompositeData object from which to retrieve the MemoryNotificationInfo data.

Returns:

A {code MemoryNotificationInfo} instance or null if cd is null its contents are invalid.

Throws:

java.lang.IllegalArgumentException - if cd does not contain valid MemoryNotification data.

java.lang.NullPointerException - if attributes in the cd are not valid.

getCount

public long getCount()

getMemoryUsage

public MemoryUsage getMemoryUsage()

getNotificationReason

public java.lang.String getNotificationReason()

getPoolName

public java.lang.String getPoolName()