www.pudn.com > jworkbook-0.3.0.zip > Cells.java

/* ================================================= 
 * JWorkbook : data export from Java to spreadsheets 
 * ================================================= 
 * 
 * Project Info:  http://www.jfree.org/jworkbook/index.html; 
 * Project Lead:  David Gilbert (david.gilbert@object-refinery.com); 
 * 
 * (C) Copyright 2001-2003, by Object Refinery Limited. 
 * 
 * This library is free software; you can redistribute it and/or modify it under the terms 
 * of the GNU Lesser General Public License as published by the Free Software Foundation; 
 * either version 2.1 of the License, or (at your option) any later version. 
 * 
 * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
 * See the GNU Lesser General Public License for more details. 
 * 
 * You should have received a copy of the GNU Lesser General Public License along with this 
 * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, 
 * Boston, MA 02111-1307, USA. 
 * 
 * ---------- 
 * Cells.java 
 * ---------- 
 * (C) Copyright 2001, 2003, by Object Refinery Limited. 
 * 
 * Original Author:  David Gilbert (for Object Refinery Limited); 
 * Contributor(s):   -; 
 * 
 * $Id$ 
 * 
 * Changes: 
 * -------- 
 * 05-Nov-2001 : Version 1 (DG); 
 * 13-Feb-2002 : Added an iterator for access to rows (DG); 
 * 07-Jul-2003 : Changed GPL --> LGPL, changed package name, updated company name (DG); 
 * 
 */ 
 
package org.jfree.workbook; 
 
import java.util.ArrayList; 
import java.util.Collections; 
import java.util.Iterator; 
import java.util.List; 
 
/** 
 * Represents the cells in a worksheet. 
 */ 
public class Cells { 
 
    /** A list of the rows of cells. */ 
    protected List rows; 
 
    /** 
     * Default constructor. 
     */ 
    public Cells() { 
        rows = new ArrayList(); 
    } 
 
    /** 
     * Adds the specified cell to the collection of cells (if the cell already exists it is 
     * replaced). 
     * @param cell The cell to add. 
     */ 
    public void add(Cell cell) { 
 
        Row key = new Row(cell.getRow()); 
        int rowIndex = Collections.binarySearch(rows, key); 
        if (rowIndex >= 0) { 
            Row working = (Row) rows.get(rowIndex); 
            working.add(cell); 
        } 
        else { 
            rows.add(-rowIndex - 1, key); 
            key.add(cell); 
        } 
 
    } 
 
    /** 
     * Returns an iterator that provides access to the rows. 
     *  
     * @return An iterator. 
     */ 
    public Iterator getRowsIterator() { 
        return rows.iterator(); 
    } 
 
}