JavaTM 2 Platform
Standard Ed. 5.0

Class ServantLocatorHelper

  extended by 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
Method Summary
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


public ServantLocatorHelper()
Method Detail


public static void insert(Any a,
                          ServantLocator that)


public static ServantLocator extract(Any a)


public static TypeCode type()


public static String id()


public static ServantLocator read(InputStream istream)


public static void write(OutputStream ostream,
                         ServantLocator value)


public static ServantLocator narrow(Object obj)


public static ServantLocator unchecked_narrow(Object obj)

JavaTM 2 Platform
Standard Ed. 5.0

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

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