org.omg.PortableServer
Class ServantActivatorPOA

java.lang.Object
  extended by org.omg.PortableServer.Servant
      extended by org.omg.PortableServer.ServantActivatorPOA
All Implemented Interfaces:
InvokeHandler, ServantActivatorOperations, ServantManagerOperations

public abstract class ServantActivatorPOA
extends Servant
implements InvokeHandler, ServantActivatorOperations

This ServantActivator stub is an optional base for the servant activators. This stub cannot serve remote invocations, as methods in ServantActivatorOperations take POA as one of parameters. Both JDK 1.5 API and OMG specifies that POA is a local object that must not be transferred to the remote invocation target.

You do not need to derive your servant activator from this stub, it is enough to implement the ServantActivator interface. But you may choose to do this if you need the functional _all_interfaces(POA, byte[]) method or want to keep default behavior during the incarnation or etherialization.


Constructor Summary
ServantActivatorPOA()
           
 
Method Summary
 String[] _all_interfaces(POA poa, byte[] Object_Id)
          Returns an array of interfaces, supported by the servant activator.
 OutputStream _invoke(String method, InputStream input, ResponseHandler handler)
          Our implementation will not call this method.
 ServantActivator _this()
          Return the complete instance of the servant activator, based on the current class (ServantActivatorPOA or derived).
 ServantActivator _this(ORB orb)
          Return the complete instance of the servant activator, based on the current class (ServantActivatorPOA or derived).
 
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.PortableServer.ServantActivatorOperations
etherealize, incarnate
 

Constructor Detail

ServantActivatorPOA

public ServantActivatorPOA()
Method Detail

_invoke

public OutputStream _invoke(String method,
                            InputStream input,
                            ResponseHandler handler)
                     throws SystemException
Our implementation will not call this method. After setting your manager to POA, it will call incarnate and etherialize directly.

Specified by:
_invoke in interface InvokeHandler
Parameters:
method - the name of the method to invoke.
input - the input stream to read parameters from.
handler - the response handler, used for creating the reply.
Returns:
the output stream, returned by ResponseHandler. The response values are already written to that stream.
Throws:
SystemException - if invocation has failed due CORBA system exception.

_all_interfaces

public String[] _all_interfaces(POA poa,
                                byte[] Object_Id)
Returns an array of interfaces, supported by the servant activator.

Specified by:
_all_interfaces in class Servant
Parameters:
poa - a POA of the given object.
Object_Id - the object Id of the given object.
Returns:
an array, containing the repository ids.

_this

public ServantActivator _this()
Return the complete instance of the servant activator, based on the current class (ServantActivatorPOA or derived).


_this

public ServantActivator _this(ORB orb)
Return the complete instance of the servant activator, based on the current class (ServantActivatorPOA or derived).