64 lines
2.7 KiB
Java
64 lines
2.7 KiB
Java
/*
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* Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* - Neither the name of Oracle nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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import javax.script.Bindings;
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import javax.script.ScriptContext;
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import javax.script.ScriptEngine;
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import javax.script.ScriptEngineManager;
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import javax.script.SimpleScriptContext;
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@SuppressWarnings("javadoc")
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public class MultiScopes {
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public static void main(final String[] args) throws Exception {
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final ScriptEngineManager manager = new ScriptEngineManager();
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final ScriptEngine engine = manager.getEngineByName("nashorn");
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engine.put("x", "hello");
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// print global variable "x"
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engine.eval("print(x);");
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// the above line prints "hello"
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// Now, pass a different script context
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final ScriptContext newContext = new SimpleScriptContext();
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newContext.setBindings(engine.createBindings(), ScriptContext.ENGINE_SCOPE);
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final Bindings engineScope = newContext.getBindings(ScriptContext.ENGINE_SCOPE);
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// add new variable "x" to the new engineScope
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engineScope.put("x", "world");
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// execute the same script - but this time pass a different script context
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engine.eval("print(x);", newContext);
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// the above line prints "world"
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}
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}
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