koala.dynamicjava.interpreter
Class TreeClassLoader

java.lang.Object
  |
  +--java.lang.ClassLoader
        |
        +--koala.dynamicjava.interpreter.TreeClassLoader

All Implemented Interfaces:

ClassLoaderContainer

public class TreeClassLoader

extends java.lang.ClassLoader

implements ClassLoaderContainer

This class is responsible for loading bytecode classes

Field Summary

protected java.util.Map	classes The place where the interpreted classes are stored
protected java.lang.ClassLoader	classLoader The auxiliary class loader
protected Interpreter	interpreter The interpreter
protected java.util.Map	trees The syntax trees

Constructor Summary

TreeClassLoader(Interpreter i)
Creates a new class loader

Method Summary

void	addTree(java.lang.String name, TypeDeclaration node) Adds a class syntax tree to the list of the loaded trees
void	addURL(java.net.URL url) Adds an URL in the class path
java.lang.Class	defineClass(java.lang.String name, byte[] code) Converts an array of bytes into an instance of class Class and links this class.
protected java.lang.Class	findClass(java.lang.String name) Finds the specified class.
java.lang.ClassLoader	getClassLoader() Returns the additional class loader that is used for loading classes from the net.
java.util.Set	getClassNames() Returns the names of the defined classes in a set
TypeDeclaration	getTree(java.lang.String name) Gets a tree
boolean	hasDefined(java.lang.String name) Whether a class was defined by this class loader

Methods inherited from class java.lang.ClassLoader

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

Methods inherited from class java.lang.Object

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

Field Detail

classes

protected java.util.Map classes

The place where the interpreted classes are stored

trees

protected java.util.Map trees

The syntax trees

interpreter

protected Interpreter interpreter

The interpreter

classLoader

protected java.lang.ClassLoader classLoader

The auxiliary class loader

Constructor Detail

TreeClassLoader

public TreeClassLoader(Interpreter i)

Creates a new class loader

Parameters:

i - the object used to interpret the classes

Method Detail

defineClass

public java.lang.Class defineClass(java.lang.String name,
                                   byte[] code)

Converts an array of bytes into an instance of class Class and links this class.

Throws:

java.lang.ClassFormatError - if the class could not be defined

getClassLoader

public java.lang.ClassLoader getClassLoader()

Returns the additional class loader that is used for loading classes from the net.

Specified by:

getClassLoader in interface ClassLoaderContainer

Returns:

null if there is no additional class loader

hasDefined

public boolean hasDefined(java.lang.String name)

Whether a class was defined by this class loader

getClassNames

public java.util.Set getClassNames()

Returns the names of the defined classes in a set

addTree

public void addTree(java.lang.String name,
                    TypeDeclaration node)

Adds a class syntax tree to the list of the loaded trees

Parameters:

name - the name of the type

node - the tree

getTree

public TypeDeclaration getTree(java.lang.String name)

Gets a tree

addURL

public void addURL(java.net.URL url)

Adds an URL in the class path

findClass

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

Finds the specified class.

Overrides:

findClass in class java.lang.ClassLoader

Parameters:

name - the name of the class

Returns:

the resulting Class object

Throws:

java.lang.ClassNotFoundException - if the class could not be find