servlets - implement jive component functionalities in Jasper 6.3 -


we need jive component features (mainly column sorting upon click of column header) in jasper library 6.3.

for this, have downloaded sample http://community.jaspersoft.com/wiki/table-sortinginteractivity-example-jasperreports-library-demos , trying build our report in similar way.

we have written custom data source , set data source expression report/ table/ data set in jrxml file. create object of data source , pass parameter in context-map.

we have written custom servlet extends jasper abstractservlet - it's code similar viewerservlet present in sample, except creates object of our data-source , puts in context-map. calls velocityutil.processtemplate () body template , context-map. servlet set custom viewer in web.xml file:

<servlet> <servlet-name>customviewerservlet</servlet-name> <servlet-class>mycustomreportservlet</servlet-class> <init-param>     <param-name>net.sf.jasperreports.web.servlets.viewer.header.template</param-name>     <param-value>viewer/customheadertemplate.vm</param-value> </init-param> <init-param>     <param-name>net.sf.jasperreports.web.servlets.viewer.body.template</param-name>     <param-value>viewer/custombodytemplate.vm</param-value> </init-param> <init-param>     <param-name>net.sf.jasperreports.web.servlets.viewer.footer.template</param-name>     <param-value>viewer/customfootertemplate.vm</param-value> </init-param>

however, when invoke servlet browser giving it's url , passing parameters needs, renders blank blue screen disabled arrow buttons next/ previous. no data coming in report, , seems next () , getfieldvalue () methods of our data-source not getting invoked.

please resolve this. links steps need followed enabling jive components using custom data-source appreciated.


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