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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/java/lang/management/ClassLoadingMXBean.java | |
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Diffstat (limited to 'libjava/classpath/java/lang/management/ClassLoadingMXBean.java')
-rw-r--r-- | libjava/classpath/java/lang/management/ClassLoadingMXBean.java | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/libjava/classpath/java/lang/management/ClassLoadingMXBean.java b/libjava/classpath/java/lang/management/ClassLoadingMXBean.java new file mode 100644 index 000000000..491af247f --- /dev/null +++ b/libjava/classpath/java/lang/management/ClassLoadingMXBean.java @@ -0,0 +1,102 @@ +/* ClassLoadingMXBean.java - Interface for a class loading 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. */ + +package java.lang.management; + +/** + * Provides access to information about the class loading + * behaviour of the current invocation of the virtual + * machine. An instance of this bean is obtained by calling + * {@link ManagementFactory#getClassLoadingMXBean()}. + * + * @author Andrew John Hughes (gnu_andrew@member.fsf.org) + * @since 1.5 + */ +public interface ClassLoadingMXBean +{ + + /** + * Returns the number of classes currently loaded by + * the virtual machine. + * + * @return the number of loaded classes. + */ + int getLoadedClassCount(); + + /** + * Returns the total number of classes loaded by the + * virtual machine since it was started. This is the + * sum of the currently loaded classes and those that + * have been unloaded. + * + * @return the total number of classes that have been + * loaded by the virtual machine since it started. + */ + long getTotalLoadedClassCount(); + + /** + * Returns the number of classes that have been unloaded + * by the virtual machine since it was started. + * + * @return the number of unloaded classes. + */ + long getUnloadedClassCount(); + + /** + * Returns true if the virtual machine will emit additional + * information when classes are loaded and unloaded. The + * format of the output is left up to the virtual machine. + * + * @return true if verbose class loading output is on. + */ + boolean isVerbose(); + + /** + * Turns on or off the emission of additional information + * when classes are loaded and unloaded. The format of the + * output is left up to the virtual machine. This method + * may be called by multiple threads concurrently, but there + * is only one global setting of verbosity that is affected. + * + * @param verbose the new setting for verbose class loading + * output. + * @throws SecurityException if a security manager exists and + * denies ManagementPermission("control"). + */ + void setVerbose(boolean verbose); + +} |