org.omg.PortableServer

Class ServantLocatorHelper

java.lang.Object

org.omg.PortableServer.ServantLocatorHelper

public abstract class ServantLocatorHelper
extends Object

When the POA has the NON_RETAIN policy it uses servant managers that are ServantLocators. Because the POA knows that the servant returned by this servant manager will be used only for a single request, it can supply extra information to the servant manager's operations and the servant manager's pair of operations may be able to cooperate to do something different than a ServantActivator. When the POA uses the ServantLocator interface, immediately after performing the operation invocation on the servant returned by preinvoke, the POA will invoke postinvoke on the servant manager, passing the ObjectId value and the Servant value as parameters (among others). This feature may be used to force every request for objects associated with a POA to be mediated by the servant manager.

Constructor Summary

Constructors

Constructor	Description
ServantLocatorHelper()

Method Summary

Modifier and Type	Method	Description
static ServantLocator	extract(Any a)
static String	id()
static void	insert(Any a, ServantLocator that)
static ServantLocator	narrow(Object obj)
static ServantLocator	read(InputStream istream)
static TypeCode	type()
static ServantLocator	unchecked_narrow(Object obj)
static void	write(OutputStream ostream, ServantLocator value)

Methods inherited from class java.lang.Object

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

Constructor Detail

ServantLocatorHelper

public ServantLocatorHelper()

Method Detail

insert

public static void insert(Any a,
                          ServantLocator that)

extract

public static ServantLocator extract(Any a)

type

public static TypeCode type()

id

public static String id()

read

public static ServantLocator read(InputStream istream)

write

public static void write(OutputStream ostream,
                         ServantLocator value)

narrow

public static ServantLocator narrow(Object obj)

unchecked_narrow

public static ServantLocator unchecked_narrow(Object obj)