customdatasource.java

ZK是一个Ajax Java Web框架

package org.zkoss.zkdemo.userguide;


import net.sf.jasperreports.engine.JRDataSource;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JRField;


/**
 * @author Teodor Danciu ([e-mail])
 * @version $Id: CustomDataSource.java 1229 2006-04-19 10:27:35Z teodord $
 */
public class CustomDataSource implements JRDataSource
{


	/**
	 *
	 */
	private Object[][] data =
		{
			{"Berne", new Integer(22), "Bill Ott", "250 - 20th Ave."},
			{"Berne", new Integer(9), "James Schneider", "277 Seventh Av."},
			{"Boston", new Integer(32), "Michael Ott", "339 College Av."},
			{"Boston", new Integer(23), "Julia Heiniger", "358 College Av."},
			{"Chicago", new Integer(39), "Mary Karsen", "202 College Av."},
			{"Chicago", new Integer(35), "George Karsen", "412 College Av."},
			{"Chicago", new Integer(11), "Julia White", "412 Upland Pl."},
			{"Dallas", new Integer(47), "Janet Fuller", "445 Upland Pl."},
			{"Dallas", new Integer(43), "Susanne Smith", "2 Upland Pl."},
			{"Dallas", new Integer(40), "Susanne Miller", "440 - 20th Ave."},
			{"Dallas", new Integer(36), "John Steel", "276 Upland Pl."},
			{"Dallas", new Integer(37), "Michael Clancy", "19 Seventh Av."},
			{"Dallas", new Integer(19), "Susanne Heiniger", "86 - 20th Ave."},
			{"Dallas", new Integer(10), "Anne Fuller", "135 Upland Pl."},
			{"Dallas", new Integer(4), "Sylvia Ringer", "365 College Av."},
			{"Dallas", new Integer(0), "Laura Steel", "429 Seventh Av."},
			{"Lyon", new Integer(38), "Andrew Heiniger", "347 College Av."},
			{"Lyon", new Integer(28), "Susanne White", "74 - 20th Ave."},
			{"Lyon", new Integer(17), "Laura Ott", "443 Seventh Av."},
			{"Lyon", new Integer(2), "Anne Miller", "20 Upland Pl."},
			{"New York", new Integer(46), "Andrew May", "172 Seventh Av."},
			{"New York", new Integer(44), "Sylvia Ott", "361 College Av."},
			{"New York", new Integer(41), "Bill King", "546 College Av."},
			{"Oslo", new Integer(45), "Janet May", "396 Seventh Av."},
			{"Oslo", new Integer(42), "Robert Ott", "503 Seventh Av."},
			{"Paris", new Integer(25), "Sylvia Steel", "269 College Av."},
			{"Paris", new Integer(18), "Sylvia Fuller", "158 - 20th Ave."},
			{"Paris", new Integer(5), "Laura Miller", "294 Seventh Av."},
			{"San Francisco", new Integer(48), "Robert White", "549 Seventh Av."},
			{"San Francisco", new Integer(7), "James Peterson", "231 Upland Pl."}
		};

	private int index = -1;
	

	/**
	 *
	 */
	public CustomDataSource()
	{
	}


	/**
	 *
	 */
	public boolean next() throws JRException
	{
		index++;

		return (index < data.length);
	}


	/**
	 *
	 */
	public Object getFieldValue(JRField field) throws JRException
	{
		Object value = null;
		
		String fieldName = field.getName();
		
		if ("the_city".equals(fieldName))
		{
			value = data[index][0];
		}
		else if ("id".equals(fieldName))
		{
			value = data[index][1];
		}
		else if ("name".equals(fieldName))
		{
			value = data[index][2];
		}
		else if ("street".equals(fieldName))
		{
			value = data[index][3];
		}
		
		return value;
	}


}