org.apache.avalon.fortress.impl.factory
Class BCELWrapperGenerator.BCELClassLoader

java.lang.Object
  java.lang.ClassLoader
      org.apache.avalon.fortress.impl.factory.BCELWrapperGenerator.BCELClassLoader

Enclosing class:

BCELWrapperGenerator

private final class BCELWrapperGenerator.BCELClassLoader
extends java.lang.ClassLoader

Author:

Avalon Development Team

Field Summary

private byte[]	m_byteCode The byte code representing the wrapper class created by the enclosing BCELWrapperGenerated.
private java.security.ProtectionDomain	m_protectionDomain The ProtectionDomain to use for the newly generated class.

Constructor Summary

BCELWrapperGenerator.BCELClassLoader()
Constructs a BCELClassLoader with no parent.

BCELWrapperGenerator.BCELClassLoader(java.lang.ClassLoader parent)
Constructs a BCELClassLoader with the specified class loader as its parent.

Method Summary

protected java.lang.Class	findClass(java.lang.String name)
private byte[]	getByteCode() Returns the byte code to use when loading a generated class.
private void	setup(byte[] byteCode, java.security.ProtectionDomain protectionDomain) Passes in data needed to create and initialze the new class when findClass is called by the BCELWrapperGenerator.
private void	tearDown() Clears the data used to generate a class to free up memory.

Methods inherited from class java.lang.ClassLoader

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

Methods inherited from class java.lang.Object

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

Field Detail

m_byteCode

private byte[] m_byteCode

The byte code representing the wrapper class created by the enclosing BCELWrapperGenerated. This field will be managed by the BCELWrapperGenerator.

m_protectionDomain

private java.security.ProtectionDomain m_protectionDomain

The ProtectionDomain to use for the newly generated class. When a SecurityManager is set, this will determine what privileges this class will have.

Constructor Detail

BCELWrapperGenerator.BCELClassLoader

public BCELWrapperGenerator.BCELClassLoader(java.lang.ClassLoader parent)

Constructs a BCELClassLoader with the specified class loader as its parent.

Parameters:

parent - The parent ClassLoader

BCELWrapperGenerator.BCELClassLoader

public BCELWrapperGenerator.BCELClassLoader()

Constructs a BCELClassLoader with no parent.

Method Detail

findClass

protected java.lang.Class findClass(java.lang.String name)
                             throws java.lang.ClassNotFoundException

Overrides:

findClass in class java.lang.ClassLoader

Throws:

java.lang.ClassNotFoundException

See Also:

ClassLoader.findClass(String)

setup

private void setup(byte[] byteCode,
                   java.security.ProtectionDomain protectionDomain)
            throws java.lang.IllegalArgumentException

Passes in data needed to create and initialze the new class when findClass is called by the BCELWrapperGenerator. This method will be called by the BCELWrapperGenerator prior to asking this class loader for the generated wrapper class.

Parameters:

byteCode - The byte code to use when loading the generated class

protectionDomain - The ProtectionDomain to use when loading the generated class.

Throws:

java.lang.IllegalArgumentException - If byteCode is null or empty

tearDown

private void tearDown()

Clears the data used to generate a class to free up memory. This method will be called by the BCELWrapperGenerator immediately after this class loader has returned the generated wrapper class.

getByteCode

private byte[] getByteCode()

Returns the byte code to use when loading a generated class.

Returns:

The byte code for defining the generated class