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

 /*

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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

  *     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,

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  */

 import javax.script.*;

 public class MultiScopes {

     public static void main(String[] args) throws Exception {

         ScriptEngineManager manager = new ScriptEngineManager();

         ScriptEngine engine = manager.getEngineByName("nashorn");

         engine.put("x", "hello");

         // print global variable "x"

         engine.eval("print(x);");

         // the above line prints "hello"

         // Now, pass a different script context

         ScriptContext newContext = new SimpleScriptContext();

         newContext.setBindings(engine.createBindings(), ScriptContext.ENGINE_SCOPE);

         Bindings engineScope = newContext.getBindings(ScriptContext.ENGINE_SCOPE);

         // add new variable "x" to the new engineScope

         engineScope.put("x", "world");

         // execute the same script - but this time pass a different script context

         engine.eval("print(x);", newContext);

         // the above line prints "world"

     }

 }