Thu, 31 Aug 2017 15:18:52 +0800
merge
1 /*
2 * Copyright (c) 2005, 2010, 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.txw2.annotation;
28 import com.sun.xml.internal.txw2.TypedXmlWriter;
29 import com.sun.xml.internal.txw2.TXW;
30 import com.sun.xml.internal.txw2.output.XmlSerializer;
32 import javax.xml.namespace.QName;
33 import java.lang.annotation.Retention;
34 import java.lang.annotation.Target;
36 import static java.lang.annotation.ElementType.TYPE;
37 import static java.lang.annotation.RetentionPolicy.RUNTIME;
38 import static java.lang.annotation.ElementType.METHOD;
40 /**
41 * Specifies the name of the XML element.
42 *
43 * <h2>Used on method</h2>
44 * <p>
45 * When used on methods declared on interfaces that derive
46 * from {@link TypedXmlWriter}, it specifies that the invocation
47 * of the method will produce an element of the specified name.
48 *
49 * <p>
50 * The method signature has to match one of the following patterns.
51 *
52 * <dl>
53 * <dt>Child writer: <tt>TW foo()</tt></dt>
54 * <dd>TW must be an interface derived from {@link TypedXmlWriter}.
55 * When this method is called, a new child element is started,
56 * and its content can be written by using the returned <tt>TW</tt>
57 * object. This child element will be ended when its _commit method
58 * is called.
59 * <dt>Leaf element: <tt>void foo(DT1,DT2,...)</tt></dt>
60 * <dd>DTi must be datatype objects.
61 * When this method is called, a new child element is started,
62 * followed by the whitespace-separated text data from each of
63 * the datatype objects, followed by the end tag.
64 * </dl>
65 *
66 * <h2>Used on interface</h2>
67 * <p>
68 * When used on interfaces that derive from {@link TypedXmlWriter},
69 * it associates an element name with that interface. This name is
70 * used in a few places, such as in {@link TXW#create(Class,XmlSerializer)}
71 * and {@link TypedXmlWriter#_element(Class)}.
72 *
73 *
74 * @author Kohsuke Kawaguchi
75 */
76 @Retention(RUNTIME)
77 @Target({METHOD,TYPE})
78 public @interface XmlElement {
79 /**
80 * The local name of the element.
81 */
82 String value() default "";
84 /**
85 * The namespace URI of this element.
86 *
87 * <p>
88 * If the annotation is on an interface and this paramter is left unspecified,
89 * then the namespace URI is taken from {@link XmlNamespace} annotation on
90 * the package that the interface is in. If {@link XmlNamespace} annotation
91 * doesn't exist, the namespace URI will be "".
92 *
93 * <p>
94 * If the annotation is on a method and this parameter is left unspecified,
95 * then the namespace URI is the same as the namespace URI of the writer interface.
96 */
97 String ns() default "##default";
98 }