?? datatable.java
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/* * Copyright (c) 2001 Sun Microsystems, Inc. All rights * reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. The end-user documentation included with the redistribution, * if any, must include the following acknowledgment: * "This product includes software developed by the * Sun Microsystems, Inc. for Project JXTA." * Alternately, this acknowledgment may appear in the software itself, * if and wherever such third-party acknowledgments normally appear. * * 4. The names "Sun", "Sun Microsystems, Inc.", "JXTA" and "Project JXTA" * must not be used to endorse or promote products derived from this * software without prior written permission. For written * permission, please contact Project JXTA at http://www.jxta.org. * * 5. Products derived from this software may not be called "JXTA", * nor may "JXTA" appear in their name, without prior written * permission of Sun. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * ==================================================================== * * This software consists of voluntary contributions made by many * individuals on behalf of Project JXTA. For more * information on Project JXTA, please see * <http://www.jxta.org/>. * * This license is based on the BSD license adopted by the Apache Foundation. * * $Id: DataTable.java,v 1.1 2006/06/13 07:02:30 nano Exp $ */package net.jxta.myjxta.misc.beam;//package net.java.netbeams.store;import java.util.Enumeration;import java.util.Hashtable;import java.util.Properties;public class DataTable { private int rows = 0; private int cols = 0; private Hashtable table = null; /** * Constructor - requires */ public DataTable(Hashtable table) { this.table = table; if (table != null) { Enumeration keys = table.keys(); cols = 0; String heading = null; while (keys.hasMoreElements()) { heading = (String) keys.nextElement(); cols++; } rows = ((String[]) table.get(heading)).length; } } /** * Method to return the number of rows in the DataTable */ public int getNumberOfRows() { return rows; } /** * Method to return the number of columns in the DataTable */ public int getNumberOfColumns() { return cols; } /** * Method to return a String array representing the a column of data * * @param columnheading name of column to retrieve. */ public String[] getColumn(String columnheading) { return (String[]) table.get(columnheading); } /** * Method to return a java.util.Properties representing an unordered * collection of data in a row with named keys. * * @param row the integer row to retrieve. */ public Properties getRow(int row) { Enumeration e = table.keys(); Properties p = null; while (e.hasMoreElements()) { if (p == null) p = new Properties(); String heading = (String) e.nextElement(); String[] values = getColumn(heading); p.setProperty(heading, values[row]); } return p; }}
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