Class DynAnyFactoryPOA
- All Implemented Interfaces:
InvokeHandler
,DynAnyFactoryOperations
- Direct Known Subclasses:
DynAnyFactoryPOATie
- invoking an operation on an existing DynAny object
- invoking an operation on a DynAnyFactory object
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.
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Field Summary
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptionString[]
_all_interfaces
(POA poa, byte[] objectId) Used by the ORB to obtain complete type information from the servant._invoke
(String $method, InputStream in, ResponseHandler $rh) Invoked by the ORB to dispatch a request to the servant._this()
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.DynAnyFactoryOperations
create_dyn_any, create_dyn_any_from_type_code
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Field Details
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_methods
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__ids
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Constructor Details
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DynAnyFactoryPOA
public DynAnyFactoryPOA()
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Method Details
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_invoke
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 interfaceInvokeHandler
- Parameters:
$method
- The method name.in
- TheInputStream
containing the marshalled arguments.$rh
- TheResponseHandler
which the servant uses to construct a proper reply- Returns:
- The
OutputStream
created by the ResponseHandler which contains the marshalled reply
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_all_interfaces
Description copied from class:Servant
Used by the ORB to obtain complete type information from the servant.- Specified by:
_all_interfaces
in classServant
- 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.
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_this
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_this
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