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samples/engine/foreignobject.js@d0fba38a0705 (annotated)

samples/engine/foreignobject.js

Tue, 22 Mar 2016 21:31:52 -0700

author

asaha

date

Tue, 22 Mar 2016 21:31:52 -0700

changeset 1810

d0fba38a0705

parent 962

ac62e33a99b0

permissions

-rw-r--r--

Added tag jdk8u92-b13 for changeset e2294411edbd

aoqi@0	1	#// Usage: jjs -scripting foreignobject.js
aoqi@0	2
aoqi@0	3	/*
aoqi@0	4	* Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
attila@962	5	*
aoqi@0	6	* Redistribution and use in source and binary forms, with or without
aoqi@0	7	* modification, are permitted provided that the following conditions
aoqi@0	8	* are met:
attila@962	9	*
aoqi@0	10	* - Redistributions of source code must retain the above copyright
aoqi@0	11	* notice, this list of conditions and the following disclaimer.
attila@962	12	*
aoqi@0	13	* - Redistributions in binary form must reproduce the above copyright
aoqi@0	14	* notice, this list of conditions and the following disclaimer in the
aoqi@0	15	* documentation and/or other materials provided with the distribution.
attila@962	16	*
aoqi@0	17	* - Neither the name of Oracle nor the names of its
aoqi@0	18	* contributors may be used to endorse or promote products derived
aoqi@0	19	* from this software without specific prior written permission.
attila@962	20	*
aoqi@0	21	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
aoqi@0	22	* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
aoqi@0	23	* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
aoqi@0	24	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
aoqi@0	25	* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
aoqi@0	26	* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
aoqi@0	27	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
aoqi@0	28	* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
aoqi@0	29	* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
aoqi@0	30	* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
aoqi@0	31	* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
aoqi@0	32	*/
aoqi@0	33
aoqi@0	34	// cross nashorn engine scripting
aoqi@0	35	// access script objects from other engines in natural syntax
aoqi@0	36
aoqi@0	37	var ScriptEngineManager = Java.type("javax.script.ScriptEngineManager");
aoqi@0	38	// create manager
aoqi@0	39	var manager = new ScriptEngineManager();
aoqi@0	40	// create engine
aoqi@0	41	var engine = manager.getEngineByName("js");
aoqi@0	42
aoqi@0	43	// eval code!
aoqi@0	44	engine.eval(<<CODE
aoqi@0	45	var obj = {
aoqi@0	46	foo: 42,
aoqi@0	47	func: function() {
aoqi@0	48	print("func: " + this.foo);
aoqi@0	49	}
aoqi@0	50	};
aoqi@0	51	CODE);
aoqi@0	52
aoqi@0	53	// Nashorn engine returns script objects as instance of
aoqi@0	54	// the class jdk.nashorn.api.scripting.ScriptObjectMirror
aoqi@0	55	// But nashorn's dynalink linker can treat these objects
aoqi@0	56	// specially to support natural script syntax to access..
attila@962	57	// In Java code, you need to use ScriptObjectMirror's
aoqi@0	58	// methods though. Once again, script world is simpler :-)
aoqi@0	59
aoqi@0	60	var foreignObj = engine.get("obj");
aoqi@0	61	// access properties, functions of it
aoqi@0	62	// with natural syntax
aoqi@0	63	print(foreignObj.foo);
aoqi@0	64	foreignObj.func();
aoqi@0	65	print(typeof foreignObj.func);
aoqi@0	66
aoqi@0	67	// access engine's global
aoqi@0	68	var foreignGlobal = engine.eval("this");
aoqi@0	69	// create objects in engine's world from here!
aoqi@0	70	print(new foreignGlobal.Object());
aoqi@0	71	print(new foreignGlobal.Date());