org.springframework.instrument.classloading
Class SimpleThrowawayClassLoader

java.lang.Object
  java.lang.ClassLoader
      org.springframework.instrument.classloading.AbstractOverridingClassLoader
          org.springframework.instrument.classloading.SimpleThrowawayClassLoader

public class SimpleThrowawayClassLoader
extends AbstractOverridingClassLoader

ClassLoader that can be used to load classes without bringing them into the parent loader. Intended to support JPA "temp class loader" requirement, but not JPA-specific.

Since:

2.0

Author:

Rod Johnson

Constructor Summary

SimpleThrowawayClassLoader(ClassLoader parent)

Method Summary

protected byte[]

transformIfNecessary(String name, byte[] bytes) Transformation hook to be implemented by subclasses.

Methods inherited from class org.springframework.instrument.classloading.AbstractOverridingClassLoader

excludeClass, excludePackage, isEligibleForOverriding, loadClass

Methods inherited from class java.lang.ClassLoader

clearAssertionStatus, defineClass, defineClass, defineClass, defineClass, definePackage, findClass, findLibrary, findLoadedClass, findResource, findResources, findSystemClass, getPackage, getPackages, getParent, getResource, getResourceAsStream, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, loadClass, resolveClass, setClassAssertionStatus, setDefaultAssertionStatus, setPackageAssertionStatus, setSigners

Methods inherited from class java.lang.Object

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

Constructor Detail

SimpleThrowawayClassLoader

public SimpleThrowawayClassLoader(ClassLoader parent)

Method Detail

transformIfNecessary

protected byte[] transformIfNecessary(String name,
                                      byte[] bytes)

Description copied from class: AbstractOverridingClassLoader

Transformation hook to be implemented by subclasses.

Specified by:

transformIfNecessary in class AbstractOverridingClassLoader

Parameters:

name - FQN of class being transformed

bytes - class bytes

Returns:

transformed bytes. Return same as input bytes if the transformation produced no changes.