org.jruby.util

Class ClassCache<T>

java.lang.Object

org.jruby.util.ClassCache<T>

public class ClassCache<T>
extends Object

A Simple cache which maintains a collection of classes that can potentially be shared among multiple runtimes (or whole JVM).

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	ClassCache.ClassGenerator
static class	ClassCache.OneShotClassLoader

Constructor Summary

Constructors

Constructor and Description
ClassCache(ClassLoader classLoader)
ClassCache(ClassLoader classLoader, int max) The ClassLoader this class cache will use for any classes generated through it.

Method Summary

Methods

Modifier and Type	Method and Description
Class<T>	cacheClassByKey(Object key, ClassCache.ClassGenerator classGenerator)
protected Class<T>	defineClass(ClassCache.ClassGenerator classGenerator)
void	flush()
int	getClassLoadCount()
ClassLoader	getClassLoader()
int	getClassReuseCount()
int	getLiveClassCount()
int	getMax()
boolean	isFull()

Methods inherited from class java.lang.Object

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

Constructor Detail

ClassCache

public ClassCache(ClassLoader classLoader,
          int max)

The ClassLoader this class cache will use for any classes generated through it. It is assumed that the classloader provided will be a parent loader of any runtime using it.

Parameters:

classLoader - to use to generate shared classes

ClassCache

public ClassCache(ClassLoader classLoader)

Method Detail

getClassLoader

public ClassLoader getClassLoader()

getMax

public int getMax()

cacheClassByKey

public Class<T> cacheClassByKey(Object key,
                       ClassCache.ClassGenerator classGenerator)
                         throws ClassNotFoundException

Throws:

ClassNotFoundException

defineClass

protected Class<T> defineClass(ClassCache.ClassGenerator classGenerator)

flush

public void flush()

isFull

public boolean isFull()

getClassLoadCount

public int getClassLoadCount()

getLiveClassCount

public int getLiveClassCount()

getClassReuseCount

public int getClassReuseCount()