openjdk-lts/doc/nashorn/source/InvokeScriptFunction.java

59 lines
2.5 KiB
Java

/*
* Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* 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
* documentation and/or other materials provided with the distribution.
*
* - 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
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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*/
import javax.script.Invocable;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;
@SuppressWarnings("javadoc")
public class InvokeScriptFunction {
public static void main(final String[] args) throws Exception {
final ScriptEngineManager manager = new ScriptEngineManager();
final ScriptEngine engine = manager.getEngineByName("nashorn");
// JavaScript code in a String
final String script = "function hello(name) { print('Hello, ' + name); }";
// evaluate script
engine.eval(script);
// javax.script.Invocable is an optional interface.
// Check whether your script engine implements or not!
// Note that the JavaScript engine implements Invocable interface.
final Invocable inv = (Invocable) engine;
// invoke the global function named "hello"
inv.invokeFunction("hello", "Scripting!!" );
}
}