| /* |
| * 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; |
| |
| /** |
| * Base implementation that provides a minimal default implementation that is |
| * intended to be extended by application developers. |
| * |
| * @since EL 3.0 |
| */ |
| public abstract class BeanNameResolver { |
| |
| /** |
| * Can this resolver resolve the given bean name? |
| * |
| * @param beanName The bean name to resolve |
| * |
| * @return This default implementation always returns <code>false</code> |
| */ |
| public boolean isNameResolved(String beanName) { |
| return false; |
| } |
| |
| |
| /** |
| * Returns the named bean. |
| * |
| * @param beanName The bean name to return |
| * |
| * @return This default implementation always returns <code>null</code> |
| */ |
| public Object getBean(String beanName) { |
| return null; |
| } |
| |
| |
| /** |
| * Sets a value of a bean of the given name. If the named bean does not |
| * exist and {@link #canCreateBean} returns <code>true</code> then a bean |
| * is created with the given value. |
| * |
| * @param beanName The name of the bean to be set/create |
| * @param value The value of the bean to set/create |
| * |
| * @throws PropertyNotWritableException if the bean is read only |
| */ |
| public void setBeanValue(String beanName, Object value) |
| throws PropertyNotWritableException { |
| throw new PropertyNotWritableException(); |
| } |
| |
| |
| /** |
| * Is the named bean read-only? |
| * |
| * @param beanName The name of the bean of interest |
| * |
| * @return <code>true</code> if the bean is read only, otherwise |
| * <code>false</code> |
| */ |
| public boolean isReadOnly(String beanName) { |
| return true; |
| } |
| |
| |
| /** |
| * Is it permitted to create a bean of the given name? |
| * |
| * @param beanName The name of the bean of interest |
| * |
| * @return <code>true</code> if the bean may be created, otherwise |
| * <code>false</code> |
| */ |
| public boolean canCreateBean(String beanName) { |
| return false; |
| } |
| } |