Setting max report pages at runtime in code, rather than in JasperReports config

I know that the JasperReports configuration allows the specification of a maximum number of pages by setting the net.sf.jasperreports.governor.max.pages.enabled and net.sf.jasperreports.governor.max.pages configuration parameters. This isn't exactly ideal for our application, though, as we'd like to be able to specify a maximum number of pages at runtime. Is there any way to leave these two configuration parameters out of the properties file and instead set the maximum number of pages a report can generate at report run time? Thanks in advance!

Hi,

I use an own scriptlet for that purpose where the user defined MaxPageLimit is evaluated... so if the report generates more than this value the filling process is canceld with a defined exception.

 

---

public class AfpsDruckScriptlet extends JRAbstractScriptlet {

 int maxPages = -1; // -1 means no limit

  public AfpsDruckScriptlet(int maxPages) {
      this.maxPages = maxPages;  
  }

  @Override
  public void afterPageInit() throws JRScriptletException {
    Integer aktPageNumber = (Integer) this.getVariableValue("PAGE_NUMBER");
    if (this.maxPages>0 && aktPageNumber>this.maxPages) {
      AfpsBusinessException ex = new AfpsBusinessException("Max PageLimit for printout reached!",AfpsErrors.ACTION_CANCELED);
      throw new JRScriptletException(ex);
    }    
  }

---

hth

C-Box

Logic similar to this was our first attempt at implementing a report governor. It's also possible to call report.getPages().size() once the report is filled to find out what the page count is and limit that way.

Hi,

 

Can we do the same thing with the php api  ?

report.setProperty(MaxPagesGovernor.PROPERTY_MAX_PAGES_ENABLED, Boolean.TRUE.toString());

report.setProperty(MaxPagesGovernor.PROPERTY_MAX_PAGES, String.valueOf(500));

?