zeta.handler.statistic
Class ActiveWorkUnitsHandler

java.lang.Object
  |
  +--zeta.handler.statistic.AbstractHandler
        |
        +--zeta.handler.statistic.ActiveWorkUnitsHandler

All Implemented Interfaces:

GetHandler

public class ActiveWorkUnitsHandler

extends AbstractHandler

Handles a GET request for the statistic 'active work units'.

Nested Class Summary

Nested classes inherited from class zeta.handler.statistic.AbstractHandler

AbstractHandler.InnerPageBuffer

Field Summary

Fields inherited from class zeta.handler.statistic.AbstractHandler

imgHeight, imgWidth, servlet

Constructor Summary

ActiveWorkUnitsHandler(ZetaServlet servlet)

Method Summary

java.awt.image.BufferedImage	createImage(java.sql.Connection con, java.lang.String imageName) Creates PNG image for a specified name which is defined in the HTML page.
java.lang.String	createPage(java.sql.Connection con) Creates HTML page with the content of the statistic 'active work units'.

Methods inherited from class zeta.handler.statistic.AbstractHandler

createPage, doGet, getBufferedPage, getImageHeight, getImageWidth, getInnerPageBuffer, getInnerPageExpiredDiffTime, getPageExpiredDiffTime, imageUpdateCompleted, isImageExpired, isInnerPageExpired, isPageExpired, pageUpdateCompleted

Methods inherited from class java.lang.Object

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

Constructor Detail

ActiveWorkUnitsHandler

public ActiveWorkUnitsHandler(ZetaServlet servlet)

Parameters:

servlet - servlet which owns this handler.

Method Detail

createPage

public java.lang.String createPage(java.sql.Connection con)
                            throws java.sql.SQLException,
                                   javax.servlet.ServletException

Creates HTML page with the content of the statistic 'active work units'.

Specified by:

createPage in class AbstractHandler

Parameters:

con - connection to the back-end database

Returns:

HTML page with the content of the statistic 'active work units'.

java.sql.SQLException

javax.servlet.ServletException

createImage

public java.awt.image.BufferedImage createImage(java.sql.Connection con,
                                                java.lang.String imageName)
                                         throws java.sql.SQLException,
                                                javax.servlet.ServletException

Creates PNG image for a specified name which is defined in the HTML page.

Overrides:

createImage in class AbstractHandler

Parameters:

con - connection to the back-end database

imageName - name of the image

Returns:

PNG image for a specified name which is defined in the HTML page.

java.sql.SQLException

javax.servlet.ServletException