org.omg.DynamicAny

Class DynStructHelper

public abstract class DynStructHelper extends Object

The helper operations for {@link DynStruct}. Following the 1.5 JDK specifications, DynStruct is always a local object, so the two methods of this helper ({@link #read} and {@link #write} are not in use, always throwing {@link MARSHAL}.

UNKNOWN: always throwing MARSHAL in read and write ensures compatibility with other popular implementations like Sun's.

Method Summary
static DynStruct	extract(Any any) Extract the DynStruct from given Any.
static String	id() Get the DynStruct repository id.
static void	insert(Any any, DynStruct that) Insert the DynStruct into the given Any.
static DynStruct	narrow(Object obj) Cast the passed object into the DynStruct.
static DynStruct	read(InputStream input) This should read DynStruct from the CDR input stream, but (following the JDK 1.5 API) it does not.
static TypeCode	type() Get the type code of the {@link DynStruct}.
static DynStruct	unchecked_narrow(Object obj) Narrow the given object to the DynStruct.
static void	write(OutputStream output, DynStruct value) This should read DynStruct from the CDR input stream, but (following the JDK 1.5 API) it does not.

Method Detail

extract

public static DynStruct extract(Any any)

Extract the DynStruct from given Any.

Throws: BAD_OPERATION if the passed Any does not contain DynStruct.

id

public static String id()

Get the DynStruct repository id.

Returns: "IDL:omg.org/DynamicAny/DynStruct:1.0", always.

insert

public static void insert(Any any, DynStruct that)

Insert the DynStruct into the given Any.

Parameters: any the Any to insert into. that the DynStruct to insert.

narrow

public static DynStruct narrow(Object obj)

Cast the passed object into the DynStruct. As DynStruct is a local object, the method just uses java type cast.

Parameters: obj the object to narrow.

Returns: narrowed instance.

Throws: BAD_PARAM if the passed object is not a DynStruct.

read

public static DynStruct read(InputStream input)

This should read DynStruct from the CDR input stream, but (following the JDK 1.5 API) it does not.

Parameters: input a org.omg.CORBA.portable stream to read from.

Throws: MARSHAL always.

UNKNOWN: Sun throws the same exception.

type

public static TypeCode type()

Get the type code of the {@link DynStruct}.

unchecked_narrow

public static DynStruct unchecked_narrow(Object obj)

Narrow the given object to the DynStruct. For the objects that are always local, this operation does not differ from the ordinary {@link #narrow} (ClassCastException will be thrown if narrowing something different). See OMG issue 4158.

Parameters: obj the object to cast.

Returns: the casted DynStruct.

Since: 1.5

write

public static void write(OutputStream output, DynStruct value)

This should read DynStruct from the CDR input stream, but (following the JDK 1.5 API) it does not.

Parameters: output a org.omg.CORBA.portable stream to write into.

Throws: MARSHAL always.

UNKNOWN: Sun throws the same exception.