jdk8-mips64-public/jaxws: src/share/jaxws_classes/com/sun/xml/internal/ws/api/pipe/FiberContextSwitchInterceptor.java@0989ad8c0860 (annotated)

src/share/jaxws_classes/com/sun/xml/internal/ws/api/pipe/FiberContextSwitchInterceptor.java@0989ad8c0860 (annotated)

src/share/jaxws_classes/com/sun/xml/internal/ws/api/pipe/FiberContextSwitchInterceptor.java

Tue, 09 Apr 2013 14:51:13 +0100

author: alanb
date: Tue, 09 Apr 2013 14:51:13 +0100
changeset 368: 0989ad8c0860
parent 286: f50545b5e2f1
child 637: 9c07ef4934dd
permissions: -rw-r--r--

8010393: Update JAX-WS RI to 2.2.9-b12941
Reviewed-by: alanb, erikj
Contributed-by: miroslav.kos@oracle.com, martin.grebac@oracle.com

 /*
  * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Oracle designates this
  * particular file as subject to the "Classpath" exception as provided
  * by Oracle in the LICENSE file that accompanied this code.
  *
  * This code 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
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */
 package com.sun.xml.internal.ws.api.pipe;
 import java.security.AccessController;
 import java.security.PrivilegedAction;
 /**
  * Interception for {@link Fiber} context switch.
  *
  * <p>
  * Even though pipeline runs asynchronously, sometimes it's desirable
  * to bind some state to the current thread running a fiber. Such state
  * may include security subject (in terms of {@link AccessController#doPrivileged}),
  * or a transaction.
  *
  * <p>
  * This mechanism makes it possible to do such things, by allowing
  * some code to be executed before and after a thread executes a fiber.
  *
  * <p>
  * The design also encapsulates the entire fiber execution in a single
  * opaque method invocation {@link Work#execute}, allowing the use of
  * <tt>finally</tt> block.
  *
  *
  * @author Kohsuke Kawaguchi
  */
 public interface FiberContextSwitchInterceptor {
     /**
      * Allows the interception of the fiber execution.
      *
      * <p>
      * This method needs to be implemented like this:
      *
      * <pre>
      * &lt;R,P> R execute( Fiber f, P p, Work&lt;R,P> work ) {
      *   // do some preparation work
      *   ...
      *   try {
      *     // invoke
      *     return work.execute(p);
      *   } finally {
      *     // do some clean up work
      *     ...
      *   }
      * }
      * </pre>
      *
      * <p>
      * While somewhat unintuitive,
      * this interception mechanism enables the interceptor to wrap
      * the whole fiber execution into a {@link AccessController#doPrivileged(PrivilegedAction)},
      * for example.
      *
      * @param f
      *      {@link Fiber} to be executed.
      * @param p
      *      The opaque parameter value for {@link Work}. Simply pass this value to
      *      {@link Work#execute(Object)}.
      * @return
      *      The opaque return value from the the {@link Work}. Simply return
      *      the value from {@link Work#execute(Object)}.
      */
     <R,P> R execute( Fiber f, P p, Work<R,P> work );
     /**
      * Abstraction of the execution that happens inside the interceptor.
      */
     interface Work<R,P> {
         /**
          * Have the current thread executes the current fiber,
          * and returns when it stops doing so.
          *
          * <p>
          * The parameter and the return value is controlled by the
          * JAX-WS runtime, and interceptors should simply treat
          * them as opaque values.
          */
         R execute(P param);
     }
 }

Mercurial > jdk8-mips64-public > jaxws / annotate

src/share/jaxws_classes/com/sun/xml/internal/ws/api/pipe/FiberContextSwitchInterceptor.java@0989ad8c0860 (annotated)

src/share/jaxws_classes/com/sun/xml/internal/ws/api/pipe/FiberContextSwitchInterceptor.java