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org.omg.PortableServer

Class ServantLocatorPOA

Implemented Interfaces:
InvokeHandler, ServantLocatorOperations, ServantManagerOperations
public abstract class ServantLocatorPOA
extends Servant
implements ServantLocatorOperations, InvokeHandler
The ServantLocator stub is an optional base for the servant locators. It cannot serve remote invocations, as methods in ServantLocatorOperations 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 locator from this stub, it is enough to implement the ServantLocator interface. But you may choose to do this if you need its functional org.omg.PortableServer.ServantActivatorPOA.delegator._ids() method or want to keep default behaviour during pre- or post- invokcations.

Method Summary

String[]
_all_interfaces(POA poa, byte[] Object_Id)
Returns an array of interfaces, supported by the servant locator.
OutputStream
_invoke(String method, InputStream input, ResponseHandler handler)
Our implementation will not call this method.
ServantLocator
_this()
Return the complete instance of the servant activator, based on the current class (ServantActivatorPOA or derived).
ServantLocator
_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

_all_interfaces, _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, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

_all_interfaces

public String[] _all_interfaces(POA poa,
                                byte[] Object_Id)
Returns an array of interfaces, supported by the servant locator.
Overrides:
_all_interfaces in interface Servant

_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

_this

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

_this

public ServantLocator _this(ORB orb)
Return the complete instance of the servant activator, based on the current class (ServantActivatorPOA or derived).
ServantLocatorPOA.java -- Copyright (C) 2005, 2006 Free Software Foundation, Inc. This file is part of GNU Classpath. GNU Classpath is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. GNU Classpath is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GNU Classpath; see the file COPYING. If not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. Linking this library statically or dynamically with other modules is making a combined work based on this library. Thus, the terms and conditions of the GNU General Public License cover the whole combination. As a special exception, the copyright holders of this library give you permission to link this library with independent modules to produce an executable, regardless of the license terms of these independent modules, and to copy and distribute the resulting executable under terms of your choice, provided that you also meet, for each linked independent module, the terms and conditions of the license of that module. An independent module is a module which is not derived from or based on this library. If you modify this library, you may extend this exception to your version of the library, but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version.

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