| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 javax.servlet.jsp; |
| |
| import javax.el.ELContextListener; |
| import javax.el.ELResolver; |
| import javax.el.ExpressionFactory; |
| |
| /** |
| * <p> |
| * Stores <i>application</i>-scoped information for the JSP container. |
| * </p> |
| * |
| * @since 2.1 |
| */ |
| public interface JspApplicationContext { |
| |
| /** |
| * Registers an <code>ELContextListener</code> that will be notified |
| * whenever a new <code>ELContext</code> is created. |
| * <p> |
| * At the very least, any <code>ELContext</code> instantiated will have |
| * reference to the <code>JspContext</code> under |
| * <code>JspContext.class</code>. |
| * |
| * @param listener The listener to add |
| */ |
| public void addELContextListener(ELContextListener listener); |
| |
| /** |
| * <p> |
| * Adds an <code>ELResolver</code> to the chain of EL variable and property |
| * management within JSP pages and Tag files. |
| * </p> |
| * <p> |
| * JSP has a default set of ELResolvers to chain for all EL evaluation: |
| * </p> |
| * <ul> |
| * <li><code>ImplicitObjectELResolver</code></li> |
| * <li><code>ELResolver</code> instances registered with this method</li> |
| * <li><code>MapELResolver</code></li> |
| * <li><code>ListELResolver</code></li> |
| * <li><code>ArrayELResolver</code></li> |
| * <li><code>BeanELResolver</code></li> |
| * <li><code>ScopedAttributeELResolver</code></li> |
| * </ul> |
| * |
| * @param resolver |
| * an additional resolver |
| * @throws IllegalStateException |
| * if called after the application's |
| * <code>ServletContextListeners</code> have been initialized. |
| */ |
| public void addELResolver(ELResolver resolver) throws IllegalStateException; |
| |
| /** |
| * <p> |
| * Returns the JSP container's <code>ExpressionFactory</code> implementation |
| * for EL use. |
| * </p> |
| * |
| * @return an <code>ExpressionFactory</code> implementation |
| */ |
| public ExpressionFactory getExpressionFactory(); |
| |
| } |