mitoolkit.core
Class ClassSpace

java.lang.Object
  mitoolkit.core.ClassSpace

All Implemented Interfaces:

java.io.Serializable

public class ClassSpace

extends java.lang.Object

implements java.io.Serializable

Class ClassSpace: HProvides a container that holds a list of class objects for classes in the classspace of a classloader. Also holds the corresponding bytecode for the classes. On the transfer of a class the bytecode is helsd in the private classpace ready to be loaded by the classloader it is associated with. However if no name clashes are detected in the shared class space the class is moved to the shared classpace The private classpace ensures that in the presence of name clashes the migrated object uses only the corect classes transfered from its source. The shared class space is available to all object residing on a server, both mobile and stationary. No metods are provided to allow the programmer to manually manipulate classpaces, Instead this is done automatically by the mobile classloader responsible for loading the migrated class. Classes are automatically published in the shared classpace of a server upon migration to promote shared access

See Also:

Serialized Form

Field Summary

(package private) java.util.Hashtable	byteCode
(package private) java.util.Hashtable	space

Constructor Summary

ClassSpace()

Method Summary

boolean	containsByteCode(java.lang.String className)
boolean	containsClass(java.lang.String className)
byte[]	getByteCode(java.lang.String className) returns the bytecode corresponding to the class name if it's not a class that has been migrated i.e.
private static byte[]	getByteCodeFromFile(java.lang.String className) Gets the bytecode from the classpath* i.e.
java.lang.Class	getClass(java.lang.String className)
void	putByteCode(java.lang.String className, byte[] bc)
void	putClass(java.lang.String className, java.lang.Class classObj)
void	removeClass(java.lang.String className)

Methods inherited from class java.lang.Object

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

Field Detail

byteCode

java.util.Hashtable byteCode

space

java.util.Hashtable space

Constructor Detail

ClassSpace

public ClassSpace()

Method Detail

containsClass

public boolean containsClass(java.lang.String className)

containsByteCode

public boolean containsByteCode(java.lang.String className)

getClass

public java.lang.Class getClass(java.lang.String className)

putClass

public void putClass(java.lang.String className,
                     java.lang.Class classObj)

putByteCode

public void putByteCode(java.lang.String className,
                        byte[] bc)

removeClass

public void removeClass(java.lang.String className)

getByteCode

public byte[] getByteCode(java.lang.String className)
                   throws java.io.IOException

returns the bytecode corresponding to the class name if it's not a class that has been migrated i.e. an aplication class then get the class from the filestore

Throws:

java.io.IOException

getByteCodeFromFile

private static byte[] getByteCodeFromFile(java.lang.String className)
                                   throws java.io.IOException

Gets the bytecode from the classpath* i.e. those in the classpath

Throws:

java.io.IOException