Wed, 07 Oct 2015 10:01:40 -0700
Merge
1 /*
2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * - Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * - Neither the name of Oracle nor the names of its
16 * contributors may be used to endorse or promote products derived
17 * from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
20 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
26 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
27 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
28 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
29 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
32 // Flexible script object using AbstractJSObject subclass
34 var AbstractJSObject = Java.type("jdk.nashorn.api.scripting.AbstractJSObject");
36 // JSObject example that uses a map for properties and
37 // falls back to with methods on a java object (for missing
38 // properties
40 function makeJSObj(map, fallback) {
41 return new AbstractJSObject() {
42 getMember: function(name) {
43 if (map.containsKey(name)) {
44 return map.get(name);
45 }
47 var val = fallback[name];
48 if (typeof val == 'function') {
49 return function() {
50 var a = arguments;
51 switch (a.length) {
52 case 0: return fallback[name]();
53 case 1: return fallback[name](a[0]);
54 case 2: return fallback[name](a[0], a[1]);
55 case 3: return fallback[name](a[0], a[1], a[2]);
56 case 4: return fallback[name](a[0], a[1], a[2], a[3]);
57 }
58 }
59 }
60 }
61 }
62 }
64 var m = new java.util.HashMap();
65 m.put("foo", 42);
66 m.put("bar", 'hello');
68 var obj = makeJSObj(m, new java.io.File("."));
70 print(obj.foo);
71 print(obj.bar);
72 print(obj.getAbsolutePath());
73 print(obj.isDirectory());