1 /*
2 * Copyright (c) 2005, 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 */
25
26 package com.sun.source.util;
27
28 import com.sun.source.doctree.*;
29
30 /**
31 * A simple visitor for tree nodes.
32 *
33 * @since 1.8
34 */
35 public class SimpleDocTreeVisitor<R,P> implements DocTreeVisitor<R, P> {
36 protected final R DEFAULT_VALUE;
37
38 protected SimpleDocTreeVisitor() {
39 DEFAULT_VALUE = null;
40 }
41
42 protected SimpleDocTreeVisitor(R defaultValue) {
43 DEFAULT_VALUE = defaultValue;
44 }
45
46 protected R defaultAction(DocTree node, P p) {
47 return DEFAULT_VALUE;
48 }
49
50 public final R visit(DocTree node, P p) {
51 return (node == null) ? null : node.accept(this, p);
52 }
53
54 public final R visit(Iterable<? extends DocTree> nodes, P p) {
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1 /*
2 * Copyright (c) 2005, 2013, 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 */
25
26 package com.sun.source.util;
27
28 import com.sun.source.doctree.*;
29
30 /**
31 * A simple visitor for tree nodes.
32 *
33 * @since 1.8
34 */
35 @jdk.Supported
36 public class SimpleDocTreeVisitor<R,P> implements DocTreeVisitor<R, P> {
37 protected final R DEFAULT_VALUE;
38
39 protected SimpleDocTreeVisitor() {
40 DEFAULT_VALUE = null;
41 }
42
43 protected SimpleDocTreeVisitor(R defaultValue) {
44 DEFAULT_VALUE = defaultValue;
45 }
46
47 protected R defaultAction(DocTree node, P p) {
48 return DEFAULT_VALUE;
49 }
50
51 public final R visit(DocTree node, P p) {
52 return (node == null) ? null : node.accept(this, p);
53 }
54
55 public final R visit(Iterable<? extends DocTree> nodes, P p) {
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