org.omg.DynamicAny
Class DynValueHelper

java.lang.Object
  extended by org.omg.DynamicAny.DynValueHelper

public abstract class DynValueHelper
extends Object

The helper operations for DynValue. Following the 1.5 JDK specifications, DynValue is always a local object, so the two methods of this helper (read(org.omg.CORBA.portable.InputStream) and write(org.omg.CORBA.portable.OutputStream, org.omg.DynamicAny.DynValue) are not in use, always throwing MARSHAL.


Constructor Summary
DynValueHelper()
           
 
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 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.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

DynValueHelper

public DynValueHelper()
Method Detail

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.

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 narrow(org.omg.CORBA.Object) (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

type

public static TypeCode type()
Get the type code of the DynValue.


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.

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.

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.

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.