eve.applet

Class mClassLoader

java.lang.Object

java.lang.ClassLoader

eve.applet.mClassLoader

All Implemented Interfaces:

ClassInfoLoader

public class mClassLoader
extends ClassLoader
implements ClassInfoLoader

This is a class loader which does automatic caching and resolving. To use it you just need to override the getClassBytes() method.

Field Summary

Fields

Modifier and Type	Field and Description
protected static Hashtable	cache
Vector	classInfoLoaders This is a set of ClassInfoLoader objects.
static mClassLoader	defaultLoader

Constructor Summary

Constructors

Constructor and Description
mClassLoader()

Method Summary

Modifier and Type	Method and Description
ClassInfo	doLoadClass(String name) This does the custom load, without looking for system classes or already loaded classes.
Class	getClass(String name) This calls the loadClass() method to get and resolve the class.
boolean	getClassBytes(ClassInfo ci) This is the only thing you MAY need to override.
ClassInfo	getClassInfo(Class cl) This gets the ClassInfo object for a class which was just loaded.
ClassInfo	getClassInfo(String name)
static Class	getForName(String name)
Object	getObject(String className) This gets an instance of a class.
static Class	getPrimitiveClass(String name)
protected Class	loadClass(String name, boolean resolve) This should be overriden to actually locate the class bytes and define the class.
ClassInfo	loadClassInfo(String name, boolean resolve)
protected boolean	tryDefineClass(ClassInfo ci)

Methods inherited from class java.lang.ClassLoader

defineClass, getResource, getResourceAsStream, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, loadClass, resolveClass

Methods inherited from class java.lang.Object

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

Field Detail

cache

protected static Hashtable cache

defaultLoader

public static mClassLoader defaultLoader

classInfoLoaders

public Vector classInfoLoaders

This is a set of ClassInfoLoader objects. By default, the getClassBytes() method will go through each of these and request them to get the classInfo bytes for a particular class name. If they return with available bytes in a ClassInfo structure then these bytes are used to define the class.

Constructor Detail

mClassLoader

public mClassLoader()

Method Detail

getClassBytes

public boolean getClassBytes(ClassInfo ci)

This is the only thing you MAY need to override.

Specified by:

getClassBytes in interface ClassInfoLoader

tryDefineClass

protected boolean tryDefineClass(ClassInfo ci)

doLoadClass

public final ClassInfo doLoadClass(String name)

This does the custom load, without looking for system classes or already loaded classes.

loadClass

protected final Class loadClass(String name,
                                boolean resolve)

Description copied from class: ClassLoader

This should be overriden to actually locate the class bytes and define the class.

Specified by:

loadClass in class ClassLoader

loadClassInfo

public final ClassInfo loadClassInfo(String name,
                                     boolean resolve)

getClassInfo

public final ClassInfo getClassInfo(String name)

getPrimitiveClass

public static Class getPrimitiveClass(String name)

getClass

public Class getClass(String name)

This calls the loadClass() method to get and resolve the class. It returns null if it could not load the class.

getForName

public static Class getForName(String name)

getObject

public Object getObject(String className)

This gets an instance of a class. Returns null if the class could not be loaded or if it could not be instantiated.

getClassInfo

public ClassInfo getClassInfo(Class cl)

This gets the ClassInfo object for a class which was just loaded. It may return null if: The Class is a primitive or system class. The Class was already loaded without its info being saved.