001 // Copyright 2004, 2005 The Apache Software Foundation 002 // 003 // Licensed under the Apache License, Version 2.0 (the "License"); 004 // you may not use this file except in compliance with the License. 005 // You may obtain a copy of the License at 006 // 007 // http://www.apache.org/licenses/LICENSE-2.0 008 // 009 // Unless required by applicable law or agreed to in writing, software 010 // distributed under the License is distributed on an "AS IS" BASIS, 011 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 012 // See the License for the specific language governing permissions and 013 // limitations under the License. 014 015 package org.apache.hivemind; 016 017 018 /** 019 * Represents a location within a resource; this is universally 020 * used to support error reporting, by relating run-time objects 021 * back to specific locations wtihin specific resources. 022 * 023 * @author Howard M. Lewis Ship, glongman@intelligentworks.com 024 */ 025 public interface Location 026 { 027 /** 028 * The resource containing the location. 029 */ 030 public Resource getResource(); 031 032 /** 033 * The line within the resource containing the location, 034 * or -1 if the line number is not known. 035 * 036 */ 037 public int getLineNumber(); 038 039 /** 040 * The column number, or -1 if not known. 041 */ 042 public int getColumnNumber(); 043 }