001 /*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements. See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License. You may obtain a copy of the License at
008 *
009 * http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017 package org.apache.commons.scxml;
018
019 /**
020 * Interface for a component that may be used by the SCXML engines
021 * to resolve context sensitive paths.
022 *
023 */
024 public interface PathResolver {
025
026 /**
027 * Resolve this context sensitive path to an absolute URL.
028 *
029 * @param ctxPath Context sensitive path, can be a relative URL
030 * @return Resolved path (an absolute URL) or <code>null</code>
031 */
032 String resolvePath(String ctxPath);
033
034 /**
035 * Get a PathResolver rooted at this context sensitive path.
036 *
037 * @param ctxPath Context sensitive path, can be a relative URL
038 * @return Returns a new resolver rooted at ctxPath
039 */
040 PathResolver getResolver(String ctxPath);
041
042 }
043