MultiScopes.java

package jsr223;

import javax.script.Bindings;
import javax.script.ScriptContext;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;
import javax.script.SimpleScriptContext;

public class MultiScopes {
	
    public static void main(String[] args) throws Exception {
        ScriptEngineManager manager = new ScriptEngineManager();
        ScriptEngine engine = manager.getEngineByName("Clojure");

        engine.put("x", "hello");
        // print global variable "x"
        engine.eval("(println x)");
        // the above line prints "hello"

        // Now, pass a different script context
        ScriptContext newContext = new SimpleScriptContext();
        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("(println x)", newContext);
        // the above line prints "world"
    }
    
}