jdk8-mips64-public/nashorn: samples/engine/callmethod.js@d0fba38a0705

     1 #// Usage: jjs -scripting callmethod.js

     3 /*

     4  * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.

     5  *

     6  * Redistribution and use in source and binary forms, with or without

     7  * modification, are permitted provided that the following conditions

     8  * are met:

     9  *

    10  *   - Redistributions of source code must retain the above copyright

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

    12  *

    13  *   - Redistributions in binary form must reproduce the above copyright

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

    15  *     documentation and/or other materials provided with the distribution.

    16  *

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

    18  *     contributors may be used to endorse or promote products derived

    19  *     from this software without specific prior written permission.

    20  *

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

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

    23  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

    24  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR

    25  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

    26  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

    27  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

    28  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

    29  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

    30  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

    31  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    32  */

    34 // simple example demonstrating calling a script object

    35 // method from script engine user code

    37 var ScriptEngineManager = Java.type("javax.script.ScriptEngineManager");

    38 // create manager

    39 var manager = new ScriptEngineManager();

    40 // create engine

    41 var engine = manager.getEngineByName("js");

    43 // eval code - too many script escapes?

    44 // use heredoc !

    45 engine.eval(<<CODE

    46     var obj = {

    47         func: function() {

    48             print("I am func of " + this);

    49         },

    51         toString: function() {

    52             return "Object 'obj'";

    53         }

    54    };

    55 CODE);

    57 // invoke methods of an object in script world

    58 // from javax.script.Invocable interface. But, hey,

    59 // calling code is JavaScript and don't worry about types :)

    61 // get that script object on which to call a method

    62 var scriptObj = engine.get("obj");

    63 // call 'func' method on object 'obj'

    64 engine.invokeMethod(scriptObj, "func");

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