Spring Framework example source code file (GroovyClassLoadingTests.java)

This example Spring Framework source code file (GroovyClassLoadingTests.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Spring Framework tags/keywords

class, class, groovyclassloader, groovyclassloadingtests, method, object, object, reflection, rootbeandefinition, rootbeandefinition, staticapplicationcontext, string, string, testbean, testcase

The Spring Framework GroovyClassLoadingTests.java source code

/*
 * Copyright 2002-2007 the original author or authors.
 *
 * 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.
 */

package org.springframework.scripting.groovy;

import java.lang.reflect.Method;

import groovy.lang.GroovyClassLoader;
import junit.framework.TestCase;

import org.springframework.beans.factory.support.RootBeanDefinition;
import org.springframework.context.support.StaticApplicationContext;
import org.springframework.util.ReflectionUtils;

/**
 * @author Mark Fisher
 */
public class GroovyClassLoadingTests extends TestCase {

	public void testClassLoading() throws Exception {
		StaticApplicationContext context = new StaticApplicationContext();

		GroovyClassLoader gcl = new GroovyClassLoader();
		Class class1 = gcl.parseClass("class TestBean { def myMethod() { \"foo\" } }");
		Class class2 = gcl.parseClass("class TestBean { def myMethod() { \"bar\" } }");

		context.registerBeanDefinition("testBean", new RootBeanDefinition(class1));
		Object testBean1 = context.getBean("testBean");
		Method method1 = class1.getDeclaredMethod("myMethod", new Class[0]);
		Object result1 = ReflectionUtils.invokeMethod(method1, testBean1);
		assertEquals("foo", (String) result1);

		// ### uncommenting the next line causes the test to pass for Spring > 2.0.2 ###
		//context.removeBeanDefinition("testBean");

		context.registerBeanDefinition("testBean", new RootBeanDefinition(class2));
		Object testBean2 = context.getBean("testBean");
		Method method2 = class2.getDeclaredMethod("myMethod", new Class[0]);
		Object result2 = ReflectionUtils.invokeMethod(method2, testBean2);
		assertEquals("bar", (String) result2);
	}

}