| /* Current.java -- |
| Copyright (C) 2005 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. */ |
| |
| |
| package org.omg.PortableInterceptor; |
| |
| import org.omg.CORBA.portable.IDLEntity; |
| |
| /** |
| * <p> |
| * The portable interceptor Current (PICurrent) contains multiple slots where an |
| * interceptor can rememeber the request - specific values between subsequent |
| * calls of the interceptor methods. In multithreaded environment, it is not |
| * possible just to store such data in the interceptor object fields. |
| * </p> |
| * <p> |
| * On the client side, it is possible to set the initial slot values by |
| * modifying slots on the Current, returend by ORB.resolve_initial_references |
| * ("PICurrent"). The returned value is narrowed with the |
| * {@link CurrentHelper#narrow}. On the subsequent invocation, made from the |
| * same thread, the interceptors will see the initial slot values as they were |
| * set using this approach. |
| * </p> |
| * <p> |
| * There are no way to set the initial values for the server side interceptors, |
| * the default values (Any with typecode TCKind.tk_null) should be always |
| * assumed. |
| * </p> |
| * <p> |
| * Since an Interceptor is running in a thread, it is running with a thread |
| * context and there is a PICurrent on that context. If the Interceptor calls |
| * ORB.resolve_initial_references ("PICurrent"), it gets the PICurrent within |
| * its thread scope. This PICurrent is different than the request scope |
| * PICurrent that the Interceptor obtains via calls to the Client- or Server- |
| * RequestInfo object. |
| * </p> |
| * <p> |
| * On the client side the PICurrent can be used to detect the recursive |
| * invocations, performed by interceptors. If one of the interceptors makes call |
| * via the same ORB, this call is then showed to all interceptors, including the |
| * interceptor that made it. To avoid infinite recursion, the during each call |
| * this interceptor can set some "recursion flag" into one of the slots of the |
| * PICurrent. If the flag is set on the entry point, this indicates a recursive |
| * call of that request. |
| * </p> |
| */ |
| public interface Current extends CurrentOperations, |
| org.omg.CORBA.Current, |
| IDLEntity |
| { |
| } |
