org.omg.DynamicAny

Class DynUnionPOA

java.lang.Object

org.omg.PortableServer.Servant

org.omg.DynamicAny.DynUnionPOA

All Implemented Interfaces:

InvokeHandler, DynAnyOperations, DynUnionOperations

Direct Known Subclasses:

DynUnionPOATie

public abstract class DynUnionPOA
extends Servant
implements DynUnionOperations, InvokeHandler

DynUnion objects support the manipulation of IDL unions. A union can have only two valid current positions:

• zero, which denotes the discriminator
• one, which denotes the active member

The component_count value for a union depends on the current discriminator: it is 2 for a union whose discriminator indicates a named member, and 1 otherwise.

Constructor Summary

Constructors

Constructor and Description
DynUnionPOA()

Method Summary

Modifier and Type	Method and Description
String[]	_all_interfaces(POA poa, byte[] objectId) Used by the ORB to obtain complete type information from the servant.
OutputStream	_invoke(String $method, InputStream in, ResponseHandler $rh) Invoked by the ORB to dispatch a request to the servant.
DynUnion	_this()
DynUnion	_this(ORB orb)

Methods inherited from class org.omg.PortableServer.Servant

_default_POA, _get_delegate, _get_interface_def, _is_a, _non_existent, _object_id, _orb, _poa, _set_delegate, _this_object, _this_object

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.omg.DynamicAny.DynUnionOperations

discriminator_kind, get_discriminator, has_no_active_member, member_kind, member_name, member, set_discriminator, set_to_default_member, set_to_no_active_member

Methods inherited from interface org.omg.DynamicAny.DynAnyOperations

assign, component_count, copy, current_component, destroy, equal, from_any, get_any, get_boolean, get_char, get_double, get_dyn_any, get_float, get_long, get_longlong, get_octet, get_reference, get_short, get_string, get_typecode, get_ulong, get_ulonglong, get_ushort, get_val, get_wchar, get_wstring, insert_any, insert_boolean, insert_char, insert_double, insert_dyn_any, insert_float, insert_long, insert_longlong, insert_octet, insert_reference, insert_short, insert_string, insert_typecode, insert_ulong, insert_ulonglong, insert_ushort, insert_val, insert_wchar, insert_wstring, next, rewind, seek, to_any, type

Constructor Detail

DynUnionPOA

public DynUnionPOA()

Method Detail

_invoke

public OutputStream _invoke(String $method,
                            InputStream in,
                            ResponseHandler $rh)

Description copied from interface: InvokeHandler

Invoked by the ORB to dispatch a request to the servant. ORB passes the method name, an InputStream containing the marshalled arguments, and a ResponseHandler which the servant uses to construct a proper reply. Only CORBA SystemException may be thrown by this method. The method must return an OutputStream created by the ResponseHandler which contains the marshalled reply. A servant must not retain a reference to the ResponseHandler beyond the lifetime of a method invocation. Servant behaviour is defined as follows:

1. Determine correct method, and unmarshal parameters from InputStream.

2. Invoke method implementation.

3. If no user exception, create a normal reply using ResponseHandler.

4. If user exception occurred, create exception reply using ResponseHandler.

5. Marshal reply into OutputStream returned by ResponseHandler.

6. Return OutputStream to ORB.

Specified by:

_invoke in interface InvokeHandler

Parameters:

$method - The method name.

in - The InputStream containing the marshalled arguments.

$rh - The ResponseHandler which the servant uses to construct a proper reply

Returns:

The OutputStream created by the ResponseHandler which contains the marshalled reply

_all_interfaces

public String[] _all_interfaces(POA poa,
                                byte[] objectId)

Description copied from class: Servant

Used by the ORB to obtain complete type information from the servant.

Specified by:

_all_interfaces in class Servant

Parameters:

poa - POA with which the servant is associated.

objectId - is the id corresponding to the object associated with this servant.

Returns:

list of type information for the object.

_this

public DynUnion _this()

_this

public DynUnion _this(ORB orb)