Module jEdit

Package org.gjt.sp.jedit

Class JARClassLoader

java.lang.Object

java.lang.ClassLoader

org.gjt.sp.jedit.JARClassLoader

public class JARClassLoader
extends ClassLoader

A class loader implementation that loads classes from JAR files. All instances share the same set of classes.

Version:

$Id: JARClassLoader.java 24913 2019-07-28 18:32:11Z daleanson $

Author:

Slava Pestov

Constructor Summary

Constructors

Constructor	Description
JARClassLoader()	This constructor creates a class loader for loading classes from all plugins.
JARClassLoader(boolean delegateFirst)	Creates a class loader that will optionally delegate the finding of classes to the parent class loader by default.

Method Summary

Modifier and Type	Method	Description
static void	dump()	For debugging.
protected void	finalize()
URL	getResource(String name)	overriding getResource() because we want to search FIRST in this ClassLoader, then the parent, the path, etc.
String	getResourceAsPath(String name)	construct a jeditresource:/etc path from the name of a resource in the associated jar.
InputStream	getResourceAsStream(String name)
Enumeration<URL>	getResources(String name)
Class	loadClass(String clazz, boolean resolveIt)
String	toString()

Methods inherited from class java.lang.ClassLoader

clearAssertionStatus, defineClass, defineClass, defineClass, defineClass, definePackage, findClass, findClass, findLibrary, findLoadedClass, findResource, findResource, findResources, findSystemClass, getClassLoadingLock, getDefinedPackage, getDefinedPackages, getName, getPackage, getPackages, getParent, getPlatformClassLoader, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, getUnnamedModule, isRegisteredAsParallelCapable, loadClass, registerAsParallelCapable, resolveClass, resources, setClassAssertionStatus, setDefaultAssertionStatus, setPackageAssertionStatus, setSigners

Methods inherited from class java.lang.Object

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

Constructor Details

JARClassLoader

public JARClassLoader()

This constructor creates a class loader for loading classes from all plugins. For example BeanShell uses one of these so that scripts can use plugin classes.

JARClassLoader

public JARClassLoader(boolean delegateFirst)

Creates a class loader that will optionally delegate the finding of classes to the parent class loader by default.

Since:

jEdit 4.3pre6

Method Details

loadClass

public Class loadClass(String clazz,
 boolean resolveIt)
                throws ClassNotFoundException

Overrides:

loadClass in class ClassLoader

Throws:

ClassNotFoundException - if the class could not be found

getResourceAsStream

public InputStream getResourceAsStream(String name)

Overrides:

getResourceAsStream in class ClassLoader

getResource

public URL getResource(String name)

overriding getResource() because we want to search FIRST in this ClassLoader, then the parent, the path, etc.

Overrides:

getResource in class ClassLoader

getResourceAsPath

public String getResourceAsPath(String name)

construct a jeditresource:/etc path from the name of a resource in the associated jar. The existence of the resource is not actually checked.

Parameters:

name - name of the resource

Returns:

jeditresource:/path_to_the_jar!name_of_the_resource

Throws:

UnsupportedOperationException - if this is an anonymous JARClassLoader (no associated jar).

dump

public static void dump()

For debugging.

toString

public String toString()

Overrides:

toString in class Object

getResources

public Enumeration<URL> getResources(String name)
                              throws IOException

Overrides:

getResources in class ClassLoader

Returns:

zero or one resource, as returned by getResource()

Throws:

IOException

finalize

protected void finalize()

Overrides:

finalize in class Object