| /* |
| * 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.el; |
| |
| import java.text.MessageFormat; |
| import java.util.Iterator; |
| import java.util.Locale; |
| import java.util.MissingResourceException; |
| import java.util.ResourceBundle; |
| |
| /** |
| * @author Jacob Hookom [jacob/hookom.net] |
| * |
| */ |
| public abstract class ELResolver { |
| |
| static String message(ELContext context, String name, Object[] props) { |
| Locale locale = context.getLocale(); |
| if (locale == null) { |
| locale = Locale.getDefault(); |
| if (locale == null) { |
| return ""; |
| } |
| } |
| ResourceBundle bundle = ResourceBundle.getBundle( |
| "javax.el.LocalStrings", locale); |
| try { |
| String template = bundle.getString(name); |
| if (props != null) { |
| template = MessageFormat.format(template, props); |
| } |
| return template; |
| } catch (MissingResourceException e) { |
| return "Missing Resource: '" + name + "' for Locale " |
| + locale.getDisplayName(); |
| } |
| } |
| |
| public static final String RESOLVABLE_AT_DESIGN_TIME = "resolvableAtDesignTime"; |
| |
| public static final String TYPE = "type"; |
| |
| public abstract Object getValue(ELContext context, Object base, Object property) throws NullPointerException, PropertyNotFoundException, ELException; |
| |
| public abstract Class<?> getType(ELContext context, Object base, Object property) throws NullPointerException, PropertyNotFoundException, ELException; |
| |
| public abstract void setValue(ELContext context, Object base, Object property, Object value) throws NullPointerException, PropertyNotFoundException, PropertyNotWritableException, ELException; |
| |
| public abstract boolean isReadOnly(ELContext context, Object base, Object property) throws NullPointerException, PropertyNotFoundException, ELException; |
| |
| public abstract Iterator<java.beans.FeatureDescriptor> getFeatureDescriptors(ELContext context, Object base); |
| |
| public abstract Class<?> getCommonPropertyType(ELContext context, Object base); |
| |
| /** |
| * @since EL 2.2 |
| */ |
| public Object invoke(@SuppressWarnings("unused") ELContext context, |
| @SuppressWarnings("unused") Object base, |
| @SuppressWarnings("unused") Object method, |
| @SuppressWarnings("unused") Class<?>[] paramTypes, |
| @SuppressWarnings("unused") Object[] params) { |
| return null; |
| } |
| } |