| package org.apache.archiva.components.evaluator; |
| |
| /* |
| * 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. |
| */ |
| |
| import java.util.List; |
| |
| /** |
| * ExpressionEvaluator |
| * |
| * @author <a href="mailto:joakim@erdfelt.com">Joakim Erdfelt</a> |
| */ |
| public interface ExpressionEvaluator |
| { |
| /** |
| * Add a source for expression resolution. |
| * |
| * @param source the source to add. |
| */ |
| void addExpressionSource( ExpressionSource source ); |
| |
| /** |
| * Evaluate a string, and expand expressions as needed. |
| * |
| * @param str the expression |
| * @return the value of the expression |
| * @throws EvaluatorException if a problem occurs whilst evaluating |
| */ |
| String expand( String str ) |
| throws EvaluatorException; |
| |
| /** |
| * Get the List of expression sources. |
| * |
| * @return the list of expression sources. |
| */ |
| List getExpressionSourceList( ); |
| |
| /** |
| * Remove a specific expression source. |
| * |
| * @param source the source to remove. |
| * @return true if expression source was removed. |
| */ |
| boolean removeExpressionSource( ExpressionSource source ); |
| } |