Source Code Cross Referenced for KeyedValues2D.java in  » Chart » jfreechart » org » jfree » data » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Chart » jfreechart » org.jfree.data 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /* ===========================================================
002:         * JFreeChart : a free chart library for the Java(tm) platform
003:         * ===========================================================
004:         *
005:         * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
006:         *
007:         * Project Info:  http://www.jfree.org/jfreechart/index.html
008:         *
009:         * This library is free software; you can redistribute it and/or modify it 
010:         * under the terms of the GNU Lesser General Public License as published by 
011:         * the Free Software Foundation; either version 2.1 of the License, or 
012:         * (at your option) any later version.
013:         *
014:         * This library is distributed in the hope that it will be useful, but 
015:         * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
016:         * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 
017:         * License for more details.
018:         *
019:         * You should have received a copy of the GNU Lesser General Public
020:         * License along with this library; if not, write to the Free Software
021:         * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, 
022:         * USA.  
023:         *
024:         * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
025:         * in the United States and other countries.]
026:         *
027:         * ------------------
028:         * KeyedValues2D.java
029:         * ------------------
030:         * (C) Copyright 2002-2005, by Object Refinery Limited.
031:         *
032:         * Original Author:  David Gilbert (for Object Refinery Limited);
033:         * Contributor(s):   -;
034:         *
035:         * $Id: KeyedValues2D.java,v 1.3.2.2 2005/10/25 21:29:13 mungady Exp $
036:         *
037:         * Changes
038:         * -------
039:         * 28-Oct-2002 : Version 1 (DG);
040:         * 12-Jan-2005 : Updated Javadocs (DG);
041:         *
042:         */
043:
044:        package org.jfree.data;
045:
046:        import java.util.List;
047:
048:        /**
049:         * An extension of the {@link Values2D} interface where a unique key is 
050:         * associated with the row and column indices.
051:         */
052:        public interface KeyedValues2D extends Values2D {
053:
054:            /**
055:             * Returns the row key for a given index.
056:             *
057:             * @param row  the row index (zero-based).
058:             *
059:             * @return The row key.
060:             * 
061:             * @throws IndexOutOfBoundsException if <code>row</code> is out of bounds.
062:             */
063:            public Comparable getRowKey(int row);
064:
065:            /**
066:             * Returns the row index for a given key.
067:             *
068:             * @param key  the row key.
069:             *
070:             * @return The row index, or <code>-1</code> if the key is unrecognised.
071:             */
072:            public int getRowIndex(Comparable key);
073:
074:            /**
075:             * Returns the row keys.
076:             *
077:             * @return The keys.
078:             */
079:            public List getRowKeys();
080:
081:            /**
082:             * Returns the column key for a given index.
083:             *
084:             * @param column  the column index (zero-based).
085:             *
086:             * @return The column key.
087:             * 
088:             * @throws IndexOutOfBoundsException if <code>row</code> is out of bounds.
089:             */
090:            public Comparable getColumnKey(int column);
091:
092:            /**
093:             * Returns the column index for a given key.
094:             *
095:             * @param key  the column key.
096:             *
097:             * @return The column index, or <code>-1</code> if the key is unrecognised.
098:             */
099:            public int getColumnIndex(Comparable key);
100:
101:            /**
102:             * Returns the column keys.
103:             *
104:             * @return The keys.
105:             */
106:            public List getColumnKeys();
107:
108:            /**
109:             * Returns the value associated with the specified keys.
110:             *
111:             * @param rowKey  the row key (<code>null</code> not permitted).
112:             * @param columnKey  the column key (<code>null</code> not permitted).
113:             *
114:             * @return The value.
115:             * 
116:             * @throws UnknownKeyException if either key is not recognised.
117:             */
118:            public Number getValue(Comparable rowKey, Comparable columnKey);
119:
120:        }
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