Problem using Null as a parameter with a stored procedure

Question

Hello All,
We're are having an issue with a Crystal Report using a Stored procedure.
The procedure has been created to be able to hande the null value as an input. When generating the report within the Crystal designer everything works when selecting the null checkbox. The reports is doing what is to be expected.
When using a Java program to generate this report we receive a JavaException
Caused by: java.lang.IllegalArgumentException: Invalid argument type
     at com.crystaldecisions.sdk.plugin.desktop.common.internal.w.setValue(Unknown Source)
Any idea if something specific/different needs to be done whenb comparing this to regular generation of reporting within a Java application.
Kind Regards

Answer 1

You will need to convert your table into an IProcedure object.  This will allow you to pass parameters directly to your stored procedure.
Try something like this:
if(table instanceof com.crystaldecisions.sdk.occa.report.data.Procedure)
   IProcedure command = (IProcedure)table;
   Fields parameterFields = (Fields)command.getParameters();
   ParameterField commandParam = (ParameterField)parameterFields.get(0);
   Values values = new Values();
   ParameterFieldDiscreteValue pfdv = new ParameterFieldDiscreteValue();
   pfdv.setValue(new Integer(1));
   values.add(pfdv);
   commandParam.setCurrentValues(values);