File Doc Category Size Date Package
ClassLoadingMXBean.java API Doc Java SE 5 API 3137 Fri Aug 26 14:57:06 BST 2005 java.lang.management

ClassLoadingMXBean

public interface ClassLoadingMXBean

The management interface for the class loading system of the Java virtual machine.

A Java virtual machine has a single instance of the implementation class of this interface. This instance implementing this interface is an MXBean that can be obtained by calling the {@link ManagementFactory#getClassLoadingMXBean} method or from the {@link ManagementFactory#getPlatformMBeanServer platform MBeanServer} method.

The ObjectName for uniquely identifying the MXBean for the class loading system within an MBeanServer is:

{@link ManagementFactory#CLASS_LOADING_MXBEAN_NAME java.lang:type=ClassLoading}

see: JMX Specification.
see: Ways to Access MXBeans
author: Mandy Chung
version: 1.11, 04/20/04
since: 1.5

Fields Summary
Constructors Summary
Methods Summary
public int getLoadedClassCount()
Returns the number of classes that are currently loaded in the Java virtual machine.
return
the number of currently loaded classes.
public long getTotalLoadedClassCount()
Returns the total number of classes that have been loaded since the Java virtual machine has started execution.
return
the total number of classes loaded.
public long getUnloadedClassCount()
Returns the total number of classes unloaded since the Java virtual machine has started execution.
return
the total number of unloaded classes.
public boolean isVerbose()
Tests if the verbose output for the class loading system is enabled.
return
true if the verbose output for the class loading system is enabled; false otherwise.
public void setVerbose(boolean value)
Enables or disables the verbose output for the class loading system. The verbose output information and the output stream to which the verbose information is emitted are implementation dependent. Typically, a Java virtual machine implementation prints a message each time a class file is loaded.
This method can be called by multiple threads concurrently. Each invocation of this method enables or disables the verbose output globally.
param
value true to enable the verbose output; false to disable.
exception
java.lang.SecurityException if a security manager exists and the caller does not have ManagementPermission("control").