gnu.java.lang.management

Class CompilationMXBeanImpl

Implemented Interfaces:
CompilationMXBean, DynamicMBean

public final class CompilationMXBeanImpl
extends BeanImpl
implements CompilationMXBean

Provides access to information about the JIT compiler of the virtual machine, if one exists. Instances of this bean are obtained by calling ManagementFactory.getCompilationMXBean(), if this is the case.
Since:
1.5

Constructor Summary

CompilationMXBeanImpl()
Constructs a new CompilationMXBeanImpl.

Method Summary

String
getName()
Returns the name of the Just-In-Time (JIT) compiler.
long
getTotalCompilationTime()
Returns the accumulated time, in milliseconds, that the JIT compiler has spent compiling Java bytecodes to native machine code.
boolean
isCompilationTimeMonitoringSupported()
Returns true if the virtual machine's JIT compiler supports monitoring of the time spent compiling.

Methods inherited from class gnu.java.lang.management.BeanImpl

checkControlPermissions, checkMonitorPermissions

Methods inherited from class javax.management.StandardMBean

cacheMBeanInfo, getAttribute, getAttributes, getCachedMBeanInfo, getClassName, getConstructors, getDescription, getDescription, getDescription, getDescription, getDescription, getDescription, getDescription, getImpact, getImplementation, getImplementationClass, getMBeanInfo, getMBeanInterface, getParameterName, getParameterName, invoke, setAttribute, setAttributes, setImplementation

Methods inherited from class java.lang.Object

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

Constructor Details

CompilationMXBeanImpl

public CompilationMXBeanImpl()
            throws NotCompliantMBeanException
Constructs a new CompilationMXBeanImpl.
Throws:
NotCompliantMBeanException - if this class doesn't implement the interface or a method appears in the interface that doesn't comply with the naming conventions.

Method Details

getName

public String getName()
Returns the name of the Just-In-Time (JIT) compiler.
Specified by:
getName in interface CompilationMXBean
Returns:
the name of the JIT compiler.

getTotalCompilationTime

public long getTotalCompilationTime()
Returns the accumulated time, in milliseconds, that the JIT compiler has spent compiling Java bytecodes to native machine code. This value represents a single time measurement for the whole virtual machine, including all multiple threads of operation. The value is not intended as a performance measurement.
Specified by:
getTotalCompilationTime in interface CompilationMXBean
Returns:
the accumulated number of milliseconds the JIT compiler has spent compiling.
Throws:
UnsupportedOperationException - if time monitoring is not supported.

isCompilationTimeMonitoringSupported

public boolean isCompilationTimeMonitoringSupported()
Returns true if the virtual machine's JIT compiler supports monitoring of the time spent compiling.
Specified by:
isCompilationTimeMonitoringSupported in interface CompilationMXBean
Returns:
true if the JIT compiler can be monitored for time spent compiling.

CompilationMXBeanImpl.java - Implementation of a compilation bean Copyright (C) 2006 Free Software Foundation This file is part of GNU Classpath. GNU Classpath is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. GNU Classpath is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GNU Classpath; see the file COPYING. If not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. Linking this library statically or dynamically with other modules is making a combined work based on this library. Thus, the terms and conditions of the GNU General Public License cover the whole combination. As a special exception, the copyright holders of this library give you permission to link this library with independent modules to produce an executable, regardless of the license terms of these independent modules, and to copy and distribute the resulting executable under terms of your choice, provided that you also meet, for each linked independent module, the terms and conditions of the license of that module. An independent module is a module which is not derived from or based on this library. If you modify this library, you may extend this exception to your version of the library, but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version.