/*
* Copyright 2009 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 de.hybris.yfaces.context;
import javax.servlet.ServletContext;
import org.springframework.context.ApplicationContext;
import de.hybris.yfaces.YFacesException;
/**
* A context object whose scope and lifetime is bound to {@link ServletContext}. In other words:
* there's only one instance per webapplication available.<br/>
* YFaces libraries must be loaded by a webapplication specific classloader (which generally is the
* case when putting them into WEB-INF/lib)
*
* @author Denny.Strietzbaum
*/
public class YApplicationContext {
private static ApplicationContext appCtx = null;
/**
* Constructor. An instance can be created only one times otherwise an exception is thrown.
*
* @param ctx
* Spring {@link ApplicationContext}
*/
public YApplicationContext(ApplicationContext ctx) {
if (appCtx != null) {
throw new YFacesException(this.getClass().getName() + " was already created");
}
appCtx = ctx;
}
/**
* Sets the Spring {@link ApplicationContext}
*
* @param ctx
* {@link ApplicationContext} to set
*/
protected static void setApplicationContext(ApplicationContext ctx) {
appCtx = ctx;
}
/**
* Returns a Spring {@link ApplicationContext}
*
* @return {@link ApplicationContext}
*/
public static ApplicationContext getApplicationContext() {
return appCtx;
}
}