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/*
* Copyright 2002-2006 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import org.apache.commons.jexl.Expression;
import org.apache.commons.jexl.ExpressionFactory;
import org.apache.commons.jexl.JexlContext;
import org.apache.commons.jexl.JexlHelper;
import java.util.List;
import java.util.ArrayList;
/**
* Simple example to show how to access arrays.
*
* @since 1.0
* @author <a href="mailto:geirm@apache.org">Geir Magnusson Jr.</a>
* @version $Id: ArrayExample.java 397078 2006-04-26 04:07:54Z dion $
*/
public class ArrayExample {
/**
* Command line entry point.
* @param args command line arguments
* @throws Exception cos jexl does.
*/
public static void main(String[] args) throws Exception {
/*
* First make a jexlContext and put stuff in it
*/
JexlContext jc = JexlHelper.createContext();
List l = new ArrayList();
l.add("Hello from location 0");
l.add(new Integer(2));
jc.getVars().put("array", l);
Expression e = ExpressionFactory.createExpression("array[1]");
Object o = e.evaluate(jc);
System.out.println("Object @ location 1 = " + o);
e = ExpressionFactory.createExpression("array[0].length()");
o = e.evaluate(jc);
System.out.println("The length of the string at location 0 is : " + o);
}
}
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