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JavaTM 2 Platform Std. Ed. v1.4.2

org.omg.DynamicAny
Class DynAnyFactoryHelper

java.lang.Object
  extended byorg.omg.DynamicAny.DynAnyFactoryHelper

public abstract class DynAnyFactoryHelper
extends Object

DynAny objects can be created by invoking operations on the DynAnyFactory object. Generally there are only two ways to create a DynAny object:

  • invoking an operation on an existing DynAny object
  • invoking an operation on a DynAnyFactory object
A constructed DynAny object supports operations that enable the creation of new DynAny objects encapsulating access to the value of some constituent. DynAny objects also support the copy operation for creating new DynAny objects. A reference to the DynAnyFactory object is obtained by calling ORB.resolve_initial_references() with the identifier parameter set to the string constant "DynAnyFactory".

Dynamic interpretation of an any usually involves creating a DynAny object using create_dyn_any() as the first step. Depending on the type of the any, the resulting DynAny object reference can be narrowed to a DynFixed, DynStruct, DynSequence, DynArray, DynUnion, DynEnum, or DynValue object reference.

Dynamic creation of an any involves creating a DynAny object using create_dyn_any_from_type_code(), passing the TypeCode associated with the value to be created. The returned reference is narrowed to one of the complex types, such as DynStruct, if appropriate. Then, the value can be initialized by means of invoking operations on the resulting object. Finally, the to_any operation can be invoked to create an any value from the constructed DynAny.


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

Constructor Detail

DynAnyFactoryHelper

public DynAnyFactoryHelper()
Method Detail

insert

public static void insert(Any a,
                          DynAnyFactory that)

extract

public static DynAnyFactory extract(Any a)

type

public static TypeCode type()

id

public static String id()

read

public static DynAnyFactory read(InputStream istream)

write

public static void write(OutputStream ostream,
                         DynAnyFactory value)

narrow

public static DynAnyFactory narrow(Object obj)

Copyright 2003 Sun Microsystems, Inc. All rights reserved