org.omg.DynamicAny

Class DynValueHelper

public abstract class DynValueHelper extends Object

The helper operations for {@link DynValue}. Following the 1.5 JDK specifications, DynValue 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 DynValue	extract(Any any) Extract the DynValue from given Any.
static String	id() Get the DynValue repository id.
static void	insert(Any any, DynValue that) Insert the DynValue into the given Any.
static DynValue	narrow(Object obj) Cast the passed object into the DynValue.
static DynValue	read(InputStream input) This should read DynValue 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 DynValue}.
static DynValue	unchecked_narrow(Object obj) Narrow the given object to the DynValue.
static void	write(OutputStream output, DynValue value) This should read DynValue from the CDR input stream, but (following the JDK 1.5 API) it does not.

Method Detail

extract

public static DynValue extract(Any any)

Extract the DynValue from given Any.

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

id

public static String id()

Get the DynValue repository id.

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

insert

public static void insert(Any any, DynValue that)

Insert the DynValue into the given Any.

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

narrow

public static DynValue narrow(Object obj)

Cast the passed object into the DynValue. As DynValue 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 DynValue.

read

public static DynValue read(InputStream input)

This should read DynValue 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 DynValue}.

unchecked_narrow

public static DynValue unchecked_narrow(Object obj)

Narrow the given object to the DynValue. 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 DynValue.

Since: 1.5

write

public static void write(OutputStream output, DynValue value)

This should read DynValue 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.