DynAnyFactoryHelper (Java 2 Platform SE 5.0) - JDK 5 Documentation v1.5.0, Java 2 SDK 英文文档

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Java^TM 2 Platform
Standard Ed. 5.0

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org.omg.DynamicAny
Class DynAnyFactoryHelper

java.lang.Object
  org.omg.DynamicAny.DynAnyFactoryHelper

public abstract class DynAnyFactoryHelper
extends Object
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 DynAnyFactory unchecked_narrow(Object obj)


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 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 DynAnyFactory`	`unchecked_narrow(Object obj)`
`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