1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
/*
* 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.client.sei;
import javax.jws.WebParam.Mode;
import javax.xml.ws.Holder;
/**
* Gets a value from an object that represents a parameter passed
* as a method argument.
*
* <p>
* This abstraction hides the handling of {@link Holder}.
*
* <p>
* {@link ValueGetter} is a stateless behavior encapsulation.
*
* @author Kohsuke Kawaguchi
*/
enum ValueGetter {
/**
* {@link ValueGetter} that works for {@link Mode#IN} parameter.
*
* <p>
* Since it's the IN mode, the parameter is not a {@link Holder},
* therefore the parameter itself is a value.
*/
PLAIN() {
Object get(Object parameter) {
return parameter;
}
},
/**
* Creates {@link ValueGetter} that works for {@link Holder},
* which is {@link Mode#INOUT} or {@link Mode#OUT}.
*
* <p>
* In those {@link Mode}s, the parameter is a {@link Holder},
* so the value to be sent is obtained by getting the value of the holder.
*/
HOLDER() {
Object get(Object parameter) {
if(parameter==null)
// the user is allowed to pass in null where a Holder is expected.
return null;
return ((Holder)parameter).value;
}
};
/**
* Gets the value to be sent, from a parameter given as a method argument.
* @param parameter that is passed by proxy
* @return if it holder then its value, otherise parameter itself
*/
abstract Object get(Object parameter);
}
|
