psl.worklets
Class WVM_Registry

java.lang.Object
  |
  +--java.rmi.server.RemoteObject
        |
        +--java.rmi.server.RemoteServer
              |
              +--sun.rmi.registry.RegistryImpl
                    |
                    +--psl.worklets.WVM_Registry

All Implemented Interfaces:

java.rmi.registry.Registry, java.rmi.Remote, java.io.Serializable

class WVM_Registry

extends sun.rmi.registry.RegistryImpl

The Worklets implemented RMI Registry We subclass the Sun implementation of the registry to add registration features to the bind, rebind, and unbind methods, and so that we can restrict who can rebind the names.

Field Summary

private java.util.Map	_names Collection of name/WVM_URL values
private java.util.Map	_regKeys Collection of WVM_URL/registrationKey values

Fields inherited from class sun.rmi.registry.RegistryImpl

Fields inherited from class java.rmi.server.RemoteServer

Fields inherited from class java.rmi.server.RemoteObject

ref

Fields inherited from interface java.rmi.registry.Registry

REGISTRY_PORT

Constructor Summary

(package private)

WVM_Registry(int port) Creates a WVM_Registry on the given port

Method Summary

private void	_registerHost(java.lang.String name, java.rmi.Remote obj) Register an object with the RMI bound name
private void	_removeHost(java.lang.String name) Remove the RMI bound name from the registration.
void	bind(java.lang.String name, java.rmi.Remote obj) Binds the Remote object to the given name
(package private) java.util.Map	getRegistrationKeys() Gets the available registration keys
static void	main(java.lang.String[] args) Creates an external registry from a command line
void	rebind(java.lang.String name, java.rmi.Remote obj) Rebinds the Remote object to the given name if the binding object is a WVM_RMI_Transporter
void	unbind(java.lang.String name) Unbinds the name from the registry.

Methods inherited from class sun.rmi.registry.RegistryImpl

checkAccess, getID, list, lookup

Methods inherited from class java.rmi.server.RemoteServer

getClientHost, getLog, setLog

Methods inherited from class java.rmi.server.RemoteObject

equals, getRef, hashCode, toString, toStub

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

_regKeys

private java.util.Map _regKeys

Collection of WVM_URL/registrationKey values

_names

private java.util.Map _names

Collection of name/WVM_URL values

Constructor Detail

WVM_Registry

WVM_Registry(int port)
       throws java.rmi.RemoteException

Creates a WVM_Registry on the given port

Throws:

java.rmi.RemoteException - if the WVM_Registry could not be created

Method Detail

getRegistrationKeys

java.util.Map getRegistrationKeys()

Gets the available registration keys

Returns:

the collection of WVM_URL/registrationKey values.

_registerHost

private void _registerHost(java.lang.String name,
                           java.rmi.Remote obj)
                    throws java.rmi.RemoteException

Register an object with the RMI bound name

Throws:

java.rmi.RemoteException - if the name/obj cannot be bound

_removeHost

private void _removeHost(java.lang.String name)

Remove the RMI bound name from the registration.

bind

public void bind(java.lang.String name,
                 java.rmi.Remote obj)
          throws java.rmi.AlreadyBoundException,
                 java.rmi.RemoteException

Binds the Remote object to the given name

Specified by:

bind in interface java.rmi.registry.Registry

Overrides:

bind in class sun.rmi.registry.RegistryImpl

Throws:

java.rmi.AlreadyBoundException - if the name is already used

java.rmi.RemoteException - if the object cannot be bound

rebind

public void rebind(java.lang.String name,
                   java.rmi.Remote obj)
            throws java.rmi.RemoteException,
                   java.rmi.AccessException

Rebinds the Remote object to the given name if the binding object is a WVM_RMI_Transporter

Specified by:

rebind in interface java.rmi.registry.Registry

Overrides:

rebind in class sun.rmi.registry.RegistryImpl

Throws:

java.rmi.RemoteException - if the object cannot be bound

java.rmi.AccessException - if the object does not have permission to rebind with the name

unbind

public void unbind(java.lang.String name)
            throws java.rmi.RemoteException,
                   java.rmi.NotBoundException

Unbinds the name from the registry.

Specified by:

unbind in interface java.rmi.registry.Registry

Overrides:

unbind in class sun.rmi.registry.RegistryImpl

Throws:

java.rmi.RemoteException - if the name could not be unbound

java.rmi.NotBoundException - if the name is not bound in the registry

main

public static void main(java.lang.String[] args)

Creates an external registry from a command line