Top Description Fields Constructors Methods

org.glassfish.jaxb.runtime.v2.runtime.reflect.opt

pack-priv final Class Injector

Class Inheritance

extends Object

java.lang.Object
org.glassfish.jaxb.runtime.v2.runtime.reflect.opt.Injector

Imports

org.glassfish.jaxb.runtime.v2.runtime.reflect.Accessor, java.lang.ref.WeakReference, java.lang.reflect.Field, .InvocationTargetException, .Method, java.security.*, java.util.Arrays, .HashMap, .Map, .WeakHashMap, java.util.concurrent.locks.Lock, .ReentrantReadWriteLock, java.util.logging.Level, .Logger

A ClassLoader used to "inject" optimized accessor classes into the VM.

Its parent class loader needs to be set to the one that can see the user class.

Author: Kohsuke Kawaguchi

Field Summary

Modifier and Type	Field and Description
private final Map<String, Class<T>>	classes Injected classes keyed by their names.
private static Method	defineClass
private static Method	findLoadedClass
private static final Map<ClassLoader, WeakReference<Injector>>	injectors
private static final Lock	ir
private static final ReentrantReadWriteLock	irwl `Injector`s keyed by their parent `ClassLoader`.
private static final Lock	iw
private final boolean	loadable True if this injector is capable of injecting accessors.
private static final Logger	logger
private final ClassLoader	parent
private final Lock	r
private static Method	resolveClass
private final ReentrantReadWriteLock	rwl
private static Object	U
private final Lock	w

Constructor Summary

Access	Constructor and Description
private	Injector(ClassLoader parent)

Method Summary

Modifier and Type	Method and Description
private static Class<T>	classForNames(String... names)
pack-priv static Class<T>	find(ClassLoader cl, String className) Returns the already injected class, or null.
private Class<T>	find(String className)
private static Injector	Returns: null if it fails. get(ClassLoader cl) Gets or creates an for the given class loader.
private static Method	getMethod(final Class<?> c, final String methodname, final Class<?>... params)
pack-priv static Class<T>	Returns: null if it fails to inject. inject(ClassLoader cl, String className, byte[] image) Injects a new class into the given class loader.
private Class<T>	inject(String className, byte[] image)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

classes	back to summary
private final Map<String, Class<T>> classes Injected classes keyed by their names.

defineClass	back to summary
private static Method defineClass

findLoadedClass	back to summary
private static Method findLoadedClass

injectors	back to summary
private static final Map<ClassLoader, WeakReference<Injector>> injectors

ir	back to summary
private static final Lock ir

irwl	back to summary
private static final ReentrantReadWriteLock irwl `Injector`s keyed by their parent `ClassLoader`. We only need one injector per one user class loader.

iw	back to summary
private static final Lock iw

loadable	back to summary
private final boolean loadable True if this injector is capable of injecting accessors. False otherwise, which happens if this classloader can't see `Accessor`.

logger	back to summary
private static final Logger logger

parent	back to summary
private final ClassLoader parent

r	back to summary
private final Lock r

resolveClass	back to summary
private static Method resolveClass

rwl	back to summary
private final ReentrantReadWriteLock rwl

U	back to summary
private static Object U

w	back to summary
private final Lock w

Constructor Detail

Injector	back to summary
private Injector(ClassLoader parent)

Method Detail

classForNames	back to summary
private static Class<T> classForNames(String... names) throws ClassNotFoundException

find	back to summary
pack-priv static Class<T> find(ClassLoader cl, String className) Returns the already injected class, or null.

find	back to summary
private Class<T> find(String className)

get

back to summary

private static Injector get(ClassLoader cl)

Gets or creates an for the given class loader.

Returns:Injector: null if it fails.

getMethod	back to summary
private static Method getMethod(final Class<?> c, final String methodname, final Class<?>... params)

inject

back to summary

pack-priv static Class<T> inject(ClassLoader cl, String className, byte[] image)

Injects a new class into the given class loader.

Returns:Class<T>: null if it fails to inject.

inject	back to summary
private Class<T> inject(String className, byte[] image) Annotations @SuppressWarnings:LockAcquiredButNotSafelyReleased