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JavaTM 2 Platform Std. Ed. v1.4.2

org.omg.PortableInterceptor
Class CurrentHelper

java.lang.Object
  extended byorg.omg.PortableInterceptor.CurrentHelper

public abstract class CurrentHelper
extends Object

Portable Interceptors Current (also known as PICurrent) is merely a slot table, the slots of which are used by each service to transfer their context data between their context and the request's or reply's service context. Each service which wishes to use PICurrent reserves a slot or slots at initialization time and uses those slots during the processing of requests and replies.

Before an invocation is made, PICurrent is obtained via a call to ORB.resolve_initial_references( "PICurrent" ). From within the interception points, the data on PICurrent that has moved from the thread scope to the request scope is available via the get_slot operation on the RequestInfo object. A PICurrent can still be obtained via resolve_initial_references, but that is the Interceptor's thread scope PICurrent.


Constructor Summary
CurrentHelper()
           
 
Method Summary
static Current extract(Any a)
           
static String id()
           
static void insert(Any a, Current that)
           
static Current narrow(Object obj)
           
static Current read(InputStream istream)
           
static TypeCode type()
           
static void write(OutputStream ostream, Current value)
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

CurrentHelper

public CurrentHelper()
Method Detail

insert

public static void insert(Any a,
                          Current that)

extract

public static Current extract(Any a)

type

public static TypeCode type()

id

public static String id()

read

public static Current read(InputStream istream)

write

public static void write(OutputStream ostream,
                         Current value)

narrow

public static Current narrow(Object obj)

Copyright 2003 Sun Microsystems, Inc. All rights reserved