TotalPhysicalMemoryNotificationInfo (OpenJ9 JDK 21)

java.lang.Object

com.ibm.lang.management.TotalPhysicalMemoryNotificationInfo

public class TotalPhysicalMemoryNotificationInfo extends Object

Encapsulates the details of a DLPAR notification emitted by a OperatingSystemMXBean when the total physical memory changes. Specifically, this notification indicates that the value returned by OperatingSystemMXBean.getTotalPhysicalMemorySize() has changed.

Field Summary

Fields

Modifier and Type

Field

Description

static final String

TOTAL_PHYSICAL_MEMORY_CHANGE
Constructor Summary

Constructors

Constructor

Description

TotalPhysicalMemoryNotificationInfo(long newTotalPhysicalMemory)

Constructs a new instance of this object.
Method Summary

Modifier and Type

Method

Description

static TotalPhysicalMemoryNotificationInfo

from(CompositeData cd)

Receives a CompositeData representing a TotalPhysicalMemoryNotificationInfo object and attempts to return the root TotalPhysicalMemoryNotificationInfo instance.

long

getNewTotalPhysicalMemory()

Returns the new value of bytes for the total physical memory after the change that this notification corresponds to.

Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details
- TOTAL_PHYSICAL_MEMORY_CHANGE
  
  public static final String TOTAL_PHYSICAL_MEMORY_CHANGE
  See Also:
  
  Constant Field Values
Constructor Details
- TotalPhysicalMemoryNotificationInfo
  
  public TotalPhysicalMemoryNotificationInfo(long newTotalPhysicalMemory)
  
  Constructs a new instance of this object.
  
  Parameters:
  
  newTotalPhysicalMemory - the new total bytes of physical memory
Method Details
- getNewTotalPhysicalMemory
  
  public long getNewTotalPhysicalMemory()
  
  Returns the new value of bytes for the total physical memory after the change that this notification corresponds to.
  
  Returns:
  
  the new physical memory total in bytes
- from
  
  public static TotalPhysicalMemoryNotificationInfo from(CompositeData cd)
  
  Receives a CompositeData representing a TotalPhysicalMemoryNotificationInfo object and attempts to return the root TotalPhysicalMemoryNotificationInfo instance.
  Parameters:
  
  cd - a CompositeDate that represents a TotalPhysicalMemoryNotificationInfo.
  
  Returns:
  
  if cd is non- null, returns a new instance of TotalPhysicalMemoryNotificationInfo. If cd is null, returns null.
  
  Throws:
  
  IllegalArgumentException - if argument cd does not correspond to a TotalPhysicalMemoryNotificationInfo with the following attribute:
  
  newTotalPhysicalMemory( java.lang.Long)