org.springframework.web.servlet.view.BeanNameViewResolver 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.web.servlet.view;
import java.util.Locale;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.core.Ordered;
import org.springframework.web.context.support.WebApplicationObjectSupport;
import org.springframework.web.servlet.View;
import org.springframework.web.servlet.ViewResolver;
/**
* Simple implementation of ViewResolver that interprets a view name
* as bean name in the current application context, i.e. in the XML
* file of the executing DispatcherServlet.
*
* This resolver can be handy for small applications, keeping all
* definitions ranging from controllers to views in the same place.
* For normal applications, XmlViewResolver will be the better choice, as
* it separates the XML view bean definitions into a dedicated views file.
* View beans should virtually never have references to any other
* application beans - such a separation will make this clear.
*
*
This ViewResolver does not support internationalization.
* Conside ResourceBundleViewResolver if you need to apply different
* view resources per locale.
*
*
Note: This ViewResolver implements the Ordered interface to allow for
* flexible participation in ViewResolver chaining. For example, some special
* views could be defined via this ViewResolver (giving it 0 as "order" value),
* while all remaining views could be resolved by a UrlBasedViewResolver.
*
* @author Juergen Hoeller
* @since 18.06.2003
* @see XmlViewResolver
* @see ResourceBundleViewResolver
* @see UrlBasedViewResolver
*/
public class BeanNameViewResolver extends WebApplicationObjectSupport implements ViewResolver, Ordered {
private int order = Integer.MAX_VALUE; // default: same as non-Ordered
public void setOrder(int order) {
this.order = order;
}
public int getOrder() {
return order;
}
public View resolveViewName(String viewName, Locale locale) throws BeansException {
ApplicationContext context = getApplicationContext();
if (!context.containsBean(viewName)) {
// Allow for ViewResolver chaining.
return null;
}
return (View) context.getBean(viewName, View.class);
}
}