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1: /* =========================================================== 2: * JFreeChart : a free chart library for the Java(tm) platform 3: * =========================================================== 4: * 5: * (C) Copyright 2000-2007, by Object Refinery Limited and Contributors. 6: * 7: * Project Info: http://www.jfree.org/jfreechart/index.html 8: * 9: * This library is free software; you can redistribute it and/or modify it 10: * under the terms of the GNU Lesser General Public License as published by 11: * the Free Software Foundation; either version 2.1 of the License, or 12: * (at your option) any later version. 13: * 14: * This library is distributed in the hope that it will be useful, but 15: * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 16: * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 17: * License for more details. 18: * 19: * You should have received a copy of the GNU Lesser General Public 20: * License along with this library; if not, write to the Free Software 21: * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 22: * USA. 23: * 24: * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 25: * in the United States and other countries.] 26: * 27: * ------------------------- 28: * CategoryURLGenerator.java 29: * ------------------------- 30: * (C) Copyright 2002-2007, by Richard Atkinson and Contributors. 31: * 32: * Original Author: Richard Atkinson; 33: * Contributors: David Gilbert (for Object Refinery Limited); 34: * 35: * Changes: 36: * -------- 37: * 05-Aug-2002 : Version 1, contributed by Richard Atkinson; 38: * 09-Oct-2002 : Fixed errors reported by Checkstyle (DG); 39: * 10-Apr-2003 : Replaced reference to CategoryDataset with 40: * KeyedValues2DDataset (DG); 41: * 23-Apr-2003 : Switched around CategoryDataset and KeyedValues2DDataset 42: * (again) (DG); 43: * 13-Aug-2003 : Added clone() method (DG); 44: * 14-Jun-2004 : Removed clone() method - classes that implement the interface 45: * should implement the PublicCloneable interface instead, 46: * wherever possible (DG); 47: * ------------- JFREECHART 1.0.x --------------------------------------------- 48: * 02-Feb-2007 : Removed author tags from all over JFreeChart sources (DG); 49: * 50: */ 51: 52: package org.jfree.chart.urls; 53: 54: import org.jfree.data.category.CategoryDataset; 55: 56: /** 57: * A URL generator for items in a {@link CategoryDataset}. 58: */ 59: public interface CategoryURLGenerator { 60: 61: /** 62: * Returns a URL for one item in a dataset. As a guideline, the URL 63: * should be valid within the context of an XHTML 1.0 document. 64: * 65: * @param data the dataset. 66: * @param series the series (zero-based index). 67: * @param category the category. 68: * 69: * @return A string containing the URL. 70: */ 71: public String generateURL(CategoryDataset data, int series, int category); 72: 73: }