Mercurial > jdk8-mips64-public > nashorn / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/samples/jsobject.js	Wed Apr 27 01:36:41 2016 +0800
     1.3 @@ -0,0 +1,75 @@
     1.4 +#// Usage: jjs -scripting -cp . jsobject.js
     1.5 +
     1.6 +/*
     1.7 + * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
     1.8 + * 
     1.9 + * Redistribution and use in source and binary forms, with or without
    1.10 + * modification, are permitted provided that the following conditions
    1.11 + * are met:
    1.12 + * 
    1.13 + *   - Redistributions of source code must retain the above copyright
    1.14 + *     notice, this list of conditions and the following disclaimer.
    1.15 + * 
    1.16 + *   - Redistributions in binary form must reproduce the above copyright
    1.17 + *     notice, this list of conditions and the following disclaimer in the
    1.18 + *     documentation and/or other materials provided with the distribution.
    1.19 + * 
    1.20 + *   - Neither the name of Oracle nor the names of its
    1.21 + *     contributors may be used to endorse or promote products derived
    1.22 + *     from this software without specific prior written permission.
    1.23 + * 
    1.24 + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
    1.25 + * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
    1.26 + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
    1.27 + * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
    1.28 + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
    1.29 + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
    1.30 + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
    1.31 + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
    1.32 + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
    1.33 + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
    1.34 + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    1.35 + */
    1.36 +
    1.37 +// This sample demonstrats how to expose a
    1.38 +// script friendly object from your java code
    1.39 +// by implementing jdk.nashorn.api.scripting.JSObject
    1.40 +
    1.41 +// compile the java program
    1.42 +`javac BufferArray.java`;
    1.43 +
    1.44 +// print error, if any and exit
    1.45 +if ($ERR != '') {
    1.46 +    print($ERR);
    1.47 +    exit($EXIT);
    1.48 +}
    1.49 +
    1.50 +// create BufferArray
    1.51 +var BufferArray = Java.type("BufferArray");
    1.52 +var bb = new BufferArray(10);
    1.53 +
    1.54 +// 'magic' methods called to retrieve set/get
    1.55 +// properties on BufferArray instance
    1.56 +var len = bb.length;
    1.57 +print("bb.length = " + len)
    1.58 +for (var i = 0; i < len; i++) {
    1.59 +    bb[i] = i*i;
    1.60 +}
    1.61 +
    1.62 +for (var i = 0; i < len; i++) {
    1.63 +    print(bb[i]);
    1.64 +}
    1.65 +
    1.66 +// get underlying buffer by calling a method
    1.67 +// on BufferArray magic object
    1.68 +
    1.69 +// 'buf' is a function member
    1.70 +print(typeof bb.buf);
    1.71 +var buf = bb.buf();
    1.72 +
    1.73 +// use retrieved underlying nio buffer
    1.74 +var cap = buf.capacity();
    1.75 +print("buf.capacity() = " + cap);
    1.76 +for (var i = 0; i < cap; i++) {
    1.77 +   print(buf.get(i));
    1.78 +}