org.dbforms.servlets
Class CSVReportServlet

java.lang.Object
  javax.servlet.GenericServlet
      javax.servlet.http.HttpServlet
          org.dbforms.servlets.base.AbstractServletBase
              org.dbforms.servlets.reports.AbstractReportServlet
                  org.dbforms.servlets.reports.AbstractLineReportServlet
                      org.dbforms.servlets.CSVReportServlet

All Implemented Interfaces:

Serializable, Servlet, ServletConfig

public class CSVReportServlet
extends AbstractLineReportServlet

This servlet generates a comma separated values file (CSV). Data is read from the current dbForm, a Collection or a ResultSetVector The template file is in the reports directory with a .cr extension it consists of two lines of text, the first is a list of stirngs to use as header the second a list of comma separated field names. both lines must have the same number of elements. Normally the output file will use the first row as the headers. But if no header line is provided, then no headers are output and every row is data. usage: with a simple goto button: <db:gotoButton destTable="web_parts" destination=" /reports/Artikel"/> or for one record: <db:gotoButton destTable="web_parts" keyToDestPos="currentRow" destination="/reports/Artikel" /> Servlet mapping must be set to handle all /reports by this servlet!!! <servlet/> <servlet-name/>startreport</servlet-name/> <display-name/>startreport</display-name/> <servlet-class/>org.dbforms.StartReportServlet</servlet-class/> </servlet> <servlet-mapping/> <servlet-name/>startreport</servlet-name/> <url-pattern/>/reports/</url-pattern/> </servlet-mapping> web.xml optional parameters reportdirs list of directories to search for report file reportMimeType mime type to send to browser Parameters filename=xyz.csv name the output file Support for grabbing data from a Collection or an existing ResultSetVector set session variable "jasper.input" to use a Collection object set session variable "jasper.rsv" to use a ResultSetVector object ex <c:set var="jasper.rsv" value="${rsv_xxxxx}" scope="session" />

Author:

Neal Katz

See Also:

Serialized Form

Constructor Summary

CSVReportServlet()

Method Summary

protected void	closeStream(OutputStream out)
protected String	getFileExtension()
protected String	getMimeType()
protected void	openStream(OutputStream out)
protected void	writeData(Object[] data)

Methods inherited from class org.dbforms.servlets.reports.AbstractLineReportServlet

getReportFileExtension, init, processReport, writeHeader

Methods inherited from class org.dbforms.servlets.reports.AbstractReportServlet

compileReport, handleException, process

Methods inherited from class org.dbforms.servlets.base.AbstractServletBase

doGet, doPost, sendErrorMessage

Methods inherited from class javax.servlet.http.HttpServlet

doDelete, doHead, doOptions, doPut, doTrace, getLastModified, service, service

Methods inherited from class javax.servlet.GenericServlet

destroy, getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletInfo, getServletName, init, log, log

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CSVReportServlet

public CSVReportServlet()

Method Detail

getMimeType

protected String getMimeType()

Specified by:

getMimeType in class AbstractLineReportServlet

getFileExtension

protected String getFileExtension()

Specified by:

getFileExtension in class AbstractLineReportServlet

openStream

protected void openStream(OutputStream out)
                   throws Exception

Specified by:

openStream in class AbstractLineReportServlet

Throws:

Exception

closeStream

protected void closeStream(OutputStream out)
                    throws Exception

Specified by:

closeStream in class AbstractLineReportServlet

Throws:

Exception

writeData

protected void writeData(Object[] data)
                  throws Exception

Specified by:

writeData in class AbstractLineReportServlet

Throws:

Exception