org.apache.tapestry5.ioc.internal.services
Class ClassFactoryClassPool

java.lang.Object
  javassist.ClassPool
      org.apache.tapestry5.ioc.internal.services.ClassFactoryClassPool

public class ClassFactoryClassPool
extends javassist.ClassPool

Used to ensure that ClassPool.appendClassPath(javassist.ClassPath) is invoked within a synchronized lock, and also handles tricky class loading issues (caused by the creation of classes, and class loaders, at runtime).

Field Summary

Fields inherited from class javassist.ClassPool

childFirstLookup, classes, doPruning, parent, releaseUnmodifiedClassFile, source

Constructor Summary

ClassFactoryClassPool(ClassLoader contextClassLoader)

Method Summary

void	addClassLoaderIfNeeded(ClassLoader loader) Convienience method for adding to the ClassPath for a particular class loader.
Class	importClass(Class clazz) Returns the nearest super-class of the provided class that can be converted to a CtClass.
Class	toClass(javassist.CtClass ct, ClassLoader loader, ProtectionDomain domain) Overriden to remove a deadlock producing synchronized block.

Methods inherited from class javassist.ClassPool

appendClassPath, appendClassPath, appendPathList, appendSystemPath, cacheCtClass, clearImportedPackages, createCtClass, find, get, get, get0, getAndRename, getCached, getClassLoader, getCtClass, getDefault, getImportedPackages, getMethod, getOrNull, importPackage, insertClassPath, insertClassPath, lookupCflow, makeClass, makeClass, makeClass, makeClass, makeClassIfNew, makeInterface, makeInterface, recordInvalidClassName, removeCached, removeClassPath, toClass, toClass, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

ClassFactoryClassPool

public ClassFactoryClassPool(ClassLoader contextClassLoader)

Method Detail

importClass

public Class importClass(Class clazz)

Returns the nearest super-class of the provided class that can be converted to a CtClass. This is used to filter out Hibernate-style proxies (created as subclasses of oridnary classes). This will automatically add the class' classLoader to the pool's class path.

Parameters:

clazz - class to import

Returns:

clazz, or a super-class of clazz

addClassLoaderIfNeeded

public void addClassLoaderIfNeeded(ClassLoader loader)

Convienience method for adding to the ClassPath for a particular class loader.

Parameters:

loader - the class loader to add (derived from a loaded class, and may be null for some system classes)

toClass

public Class toClass(javassist.CtClass ct,
                     ClassLoader loader,
                     ProtectionDomain domain)
              throws javassist.CannotCompileException

Overriden to remove a deadlock producing synchronized block. We expect that the defineClass() methods will have been marked as accessible statically (by this class), so there's no need to set them accessible again.

Overrides:

toClass in class javassist.ClassPool

Throws:

javassist.CannotCompileException