#// Usage: jjs -scripting -cp . jsobject.js

/*

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 *

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 * modification, are permitted provided that the following conditions

 * are met:

 *

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 *     notice, this list of conditions and the following disclaimer.

 *

 *   - Redistributions in binary form must reproduce the above copyright

 *     notice, this list of conditions and the following disclaimer in the

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 *

 *   - Neither the name of Oracle nor the names of its

 *     contributors may be used to endorse or promote products derived

 *     from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS

 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

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 */

// This sample demonstrats how to expose a

// script friendly object from your java code

// by implementing jdk.nashorn.api.scripting.JSObject

// compile the java program

`javac BufferArray.java`;

// print error, if any and exit

if ($ERR != '') {

    print($ERR);

    exit($EXIT);

}

// create BufferArray

var BufferArray = Java.type("BufferArray");

var bb = new BufferArray(10);

// 'magic' methods called to retrieve set/get

// properties on BufferArray instance

var len = bb.length;

print("bb.length = " + len)

for (var i = 0; i < len; i++) {

    bb[i] = i*i;

}

for (var i = 0; i < len; i++) {

    print(bb[i]);

}

// get underlying buffer by calling a method

// on BufferArray magic object

// 'buf' is a function member

print(typeof bb.buf);

var buf = bb.buf();

// use retrieved underlying nio buffer

var cap = buf.capacity();

print("buf.capacity() = " + cap);

for (var i = 0; i < cap; i++) {

   print(buf.get(i));

}