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Spring Framework example source code file (XmlBeanFactory.java)

This example Spring Framework source code file (XmlBeanFactory.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

beanfactory, beanfactory, beansexception, beansexception, defaultlistablebeanfactory, xmlbeandefinitionreader, xmlbeandefinitionreader, xmlbeanfactory, xmlbeanfactory

The Spring Framework XmlBeanFactory.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.beans.factory.xml;

import org.springframework.beans.BeansException;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.support.DefaultListableBeanFactory;
import org.springframework.core.io.Resource;

/**
 * Convenience extension of {@link DefaultListableBeanFactory} that reads bean definitions
 * from an XML document. Delegates to {@link XmlBeanDefinitionReader} underneath; effectively
 * equivalent to using an XmlBeanDefinitionReader with a DefaultListableBeanFactory.
 *
 * <p>The structure, element and attribute names of the required XML document
 * are hard-coded in this class. (Of course a transform could be run if necessary
 * to produce this format). "beans" doesn't need to be the root element of the XML
 * document: This class will parse all bean definition elements in the XML file.
 *
 * <p>This class registers each bean definition with the {@link DefaultListableBeanFactory}
 * superclass, and relies on the latter's implementation of the {@link BeanFactory} interface.
 * It supports singletons, prototypes, and references to either of these kinds of bean.
 * See "spring-beans-2.0.dtd" for details on options and configuration style.
 *
 * <p>For advanced needs, consider using a {@link DefaultListableBeanFactory} with
 * an {@link XmlBeanDefinitionReader}.</b> The latter allows for reading from multiple XML
 * resources and is highly configurable in its actual XML parsing behavior.
 *
 * @author Rod Johnson
 * @author Juergen Hoeller
 * @since 15 April 2001
 * @see org.springframework.beans.factory.support.DefaultListableBeanFactory
 * @see XmlBeanDefinitionReader
 */
public class XmlBeanFactory extends DefaultListableBeanFactory {

	private final XmlBeanDefinitionReader reader = new XmlBeanDefinitionReader(this);


	/**
	 * Create a new XmlBeanFactory with the given resource,
	 * which must be parsable using DOM.
	 * @param resource XML resource to load bean definitions from
	 * @throws BeansException in case of loading or parsing errors
	 */
	public XmlBeanFactory(Resource resource) throws BeansException {
		this(resource, null);
	}

	/**
	 * Create a new XmlBeanFactory with the given input stream,
	 * which must be parsable using DOM.
	 * @param resource XML resource to load bean definitions from
	 * @param parentBeanFactory parent bean factory
	 * @throws BeansException in case of loading or parsing errors
	 */
	public XmlBeanFactory(Resource resource, BeanFactory parentBeanFactory) throws BeansException {
		super(parentBeanFactory);
		this.reader.loadBeanDefinitions(resource);
	}

}

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