src/share/jaxws_classes/com/sun/xml/internal/bind/CycleRecoverable.java

Thu, 12 Oct 2017 19:44:07 +0800

author
aoqi
date
Thu, 12 Oct 2017 19:44:07 +0800
changeset 760
e530533619ec
parent 0
373ffda63c9a
permissions
-rw-r--r--

merge

aoqi@0 1 /*
aoqi@0 2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
aoqi@0 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0 4 *
aoqi@0 5 * This code is free software; you can redistribute it and/or modify it
aoqi@0 6 * under the terms of the GNU General Public License version 2 only, as
aoqi@0 7 * published by the Free Software Foundation. Oracle designates this
aoqi@0 8 * particular file as subject to the "Classpath" exception as provided
aoqi@0 9 * by Oracle in the LICENSE file that accompanied this code.
aoqi@0 10 *
aoqi@0 11 * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0 14 * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0 15 * accompanied this code).
aoqi@0 16 *
aoqi@0 17 * You should have received a copy of the GNU General Public License version
aoqi@0 18 * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0 20 *
aoqi@0 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0 22 * or visit www.oracle.com if you need additional information or have any
aoqi@0 23 * questions.
aoqi@0 24 */
aoqi@0 25
aoqi@0 26 package com.sun.xml.internal.bind;
aoqi@0 27
aoqi@0 28 import javax.xml.bind.Marshaller;
aoqi@0 29
aoqi@0 30 /**
aoqi@0 31 * Optional interface that can be implemented by JAXB-bound objects
aoqi@0 32 * to handle cycles in the object graph.
aoqi@0 33 *
aoqi@0 34 * <p>
aoqi@0 35 * As discussed in <a href="https://jaxb.dev.java.net/guide/Mapping_cyclic_references_to_XML.html">
aoqi@0 36 * the users' guide</a>, normally a cycle in the object graph causes the marshaller to report an error,
aoqi@0 37 * and when an error is found, the JAXB RI recovers by cutting the cycle arbitrarily.
aoqi@0 38 * This is not always a desired behavior.
aoqi@0 39 *
aoqi@0 40 * <p>
aoqi@0 41 * Implementing this interface allows user application to change this behavior.
aoqi@0 42 * Also see <a href="http://forums.java.net/jive/thread.jspa?threadID=13670">this related discussion</a>.
aoqi@0 43 *
aoqi@0 44 * @since JAXB 2.1 EA2
aoqi@0 45 * @author Kohsuke Kawaguchi
aoqi@0 46 */
aoqi@0 47 public interface CycleRecoverable {
aoqi@0 48 /**
aoqi@0 49 * Called when a cycle is detected by the JAXB RI marshaller
aoqi@0 50 * to nominate a new object to be marshalled instead.
aoqi@0 51 *
aoqi@0 52 * @param context
aoqi@0 53 * This object is provided by the JAXB RI to inform
aoqi@0 54 * the object about the marshalling process that's going on.
aoqi@0 55 *
aoqi@0 56 *
aoqi@0 57 * @return
aoqi@0 58 * the object to be marshalled instead of <tt>this</tt> object.
aoqi@0 59 * Or return null to indicate that the JAXB RI should behave
aoqi@0 60 * just like when your object does not implement {@link CycleRecoverable}
aoqi@0 61 * (IOW, cut the cycle arbitrarily and try to go on.)
aoqi@0 62 */
aoqi@0 63 Object onCycleDetected(Context context);
aoqi@0 64
aoqi@0 65 /**
aoqi@0 66 * This interface is implemented by the JAXB RI to provide
aoqi@0 67 * information about the on-going marshalling process.
aoqi@0 68 *
aoqi@0 69 * <p>
aoqi@0 70 * We may add more methods in the future, so please do not
aoqi@0 71 * implement this interface in your application.
aoqi@0 72 */
aoqi@0 73 public interface Context {
aoqi@0 74 /**
aoqi@0 75 * Returns the marshaller object that's doing the marshalling.
aoqi@0 76 *
aoqi@0 77 * @return
aoqi@0 78 * always non-null.
aoqi@0 79 */
aoqi@0 80 Marshaller getMarshaller();
aoqi@0 81 }
aoqi@0 82 }

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