org.hotswap.agent.javassist

Class LoaderClassPath

java.lang.Object

org.hotswap.agent.javassist.LoaderClassPath

All Implemented Interfaces:

ClassPath

public class LoaderClassPath
extends Object
implements ClassPath

A class search-path representing a class loader.

It is used for obtaining a class file from the given class loader by getResourceAsStream(). The LoaderClassPath refers to the class loader through WeakReference. If the class loader is garbage collected, the other search pathes are examined.

The given class loader must have both getResourceAsStream() and getResource().

Class files in a named module are private to that module. This method cannot obtain class files in named modules.

Author:

Bill Burke, Shigeru Chiba

See Also:

ClassPool.insertClassPath(ClassPath), ClassPool.appendClassPath(ClassPath), ClassClassPath

Constructor Summary

Constructors

Constructor and Description
LoaderClassPath(ClassLoader cl) Creates a search path representing a class loader.

Method Summary

Modifier and Type	Method and Description
void	close() Closes this class path.
URL	find(String classname) Obtains the URL of the specified class file.
InputStream	openClassfile(String classname) Obtains a class file from the class loader.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

LoaderClassPath

public LoaderClassPath(ClassLoader cl)

Creates a search path representing a class loader.

Method Detail

toString

public String toString()

Overrides:

toString in class Object

openClassfile

public InputStream openClassfile(String classname)
                          throws NotFoundException

Obtains a class file from the class loader. This method calls getResourceAsStream(String) on the class loader.

Specified by:

openClassfile in interface ClassPath

Parameters:

classname - a fully-qualified class name

Returns:

the input stream for reading a class file

Throws:

NotFoundException

See Also:

javassist.Translator

find

public URL find(String classname)

Obtains the URL of the specified class file. This method calls getResource(String) on the class loader.

Specified by:

find in interface ClassPath

Parameters:

classname - a fully-qualified class name.

Returns:

null if the class file could not be found.

close

public void close()

Closes this class path.

Specified by:

close in interface ClassPath