Sat, 07 Nov 2020 10:30:02 +0800
Added tag mips-jdk8u275-b01 for changeset fdbe50121f48
1 /*
2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
26 package com.sun.xml.internal.ws.client.sei;
28 import javax.jws.WebParam.Mode;
29 import javax.xml.ws.Holder;
31 /**
32 * Gets a value from an object that represents a parameter passed
33 * as a method argument.
34 *
35 * <p>
36 * This abstraction hides the handling of {@link Holder}.
37 *
38 * <p>
39 * {@link ValueGetter} is a stateless behavior encapsulation.
40 *
41 * @author Kohsuke Kawaguchi
42 */
43 enum ValueGetter {
44 /**
45 * {@link ValueGetter} that works for {@link Mode#IN} parameter.
46 *
47 * <p>
48 * Since it's the IN mode, the parameter is not a {@link Holder},
49 * therefore the parameter itself is a value.
50 */
51 PLAIN() {
52 Object get(Object parameter) {
53 return parameter;
54 }
55 },
56 /**
57 * Creates {@link ValueGetter} that works for {@link Holder},
58 * which is {@link Mode#INOUT} or {@link Mode#OUT}.
59 *
60 * <p>
61 * In those {@link Mode}s, the parameter is a {@link Holder},
62 * so the value to be sent is obtained by getting the value of the holder.
63 */
64 HOLDER() {
65 Object get(Object parameter) {
66 if(parameter==null)
67 // the user is allowed to pass in null where a Holder is expected.
68 return null;
69 return ((Holder)parameter).value;
70 }
71 };
73 /**
74 * Gets the value to be sent, from a parameter given as a method argument.
75 * @param parameter that is passed by proxy
76 * @return if it holder then its value, otherise parameter itself
77 */
78 abstract Object get(Object parameter);
80 }