| /* |
| * 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 org.apache.cocoon.portal.util; |
| |
| import java.util.Collections; |
| import java.util.Map; |
| |
| /** |
| * Field handler superclass for external references. |
| * |
| * @author <a href="mailto:bluetkemeier@s-und-n.de">Björn Lütkemeier</a> |
| * |
| * @version CVS $Id$ |
| */ |
| public abstract class ReferenceFieldHandler extends AbstractFieldHandler { |
| /** |
| * Used to pass resolvable objects to the field handler. |
| */ |
| private static ThreadLocal threadLocalMap = new ThreadLocal(); |
| |
| /** |
| * Gets the map used to pass resolvable objects to the field handler. |
| */ |
| public static Map getObjectMap() { |
| Map map = (Map) threadLocalMap.get(); |
| if (map == null) { |
| map = Collections.EMPTY_MAP; |
| } |
| return map; |
| } |
| |
| /** |
| * Sets the map used to pass resolvable objects to the field handler. |
| */ |
| public static void setObjectMap(Map objectMap) { |
| threadLocalMap.set(objectMap); |
| } |
| |
| public static void clearObjectMap() { |
| threadLocalMap.set(null); |
| } |
| } |