org.springframework.beans.factory.xml.XmlBeanFactory Maven / Gradle / Ivy
/*
* Copyright 2002-2006 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 DefaultListableBeanFactory that reads bean definitions
* from an XML document. Delegates to XmlBeanDefinitionReader underneath; effectively
* equivalent to using an XmlBeanDefinitionReader with a DefaultListableBeanFactory.
*
* 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.
*
*
This class registers each bean definition with the DefaultListableBeanFactory
* superclass, and relies on the latter's implementation of the 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.
*
*
For advanced needs, consider using a DefaultListableBeanFactory with
* an XmlBeanDefinitionReader. 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);
}
}