Problem in rs.next() execution

Question

Hai guys,
I had servlet program, this will call the DynamicProcedureDAO.getGroupData() method three times. Every time the getGroupData() method going to call the different oracle (10 g) stored procedure.
For first two times it works fine, because stored procedure handles fewer amounts of records. But for the third procedure call, system hanged in >> while (rs.next()) statement. I waited for the result almost 20-30 minutes, but i didn't get the result.
Third oracle procedure manipulate large amount of data. I ran the oracle procedure in database server, it work fine, it returns 60- to 100 rows.
For more information about code is given below.
Have you guys experienced any similar problem with Resultset before? Would really appreciate any help or tips from the experts here... thx...
Saravanan.
(Mail me : [email protected])
public class DynamicProcedureDAO extends DAO
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public ArrayList getGroupData(CCReportObject ccReportObject ,ReportFieldGroup reportFieldGroup) throws StorageException
     Connection con = null;
CallableStatement cs = null;
ResultSet rs = null;
try
con = super.getConnection();
String sql = "{call "+ procName +" (?,?,?,?,?,?,?,?,?,?,?,?)}";
cs = con.prepareCall(sql);
�..
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cs.execute();
rs = ((OracleCallableStatement)cs).getCursor(12);
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int j = rs.getMetaData().getColumnCount();
DwsLogs.CC_TRACE_LOG.logp(Level.INFO,"DynamicProcedureDAO", "getGroupData ", "Outside wile loop.");
while (rs.next())
          DwsLogs.CC_TRACE_LOG.logp(Level.INFO,"DynamicProcedureDAO", "getGroupData ", " Inside While Loop");
The above DwsLogs statements is not executed.

Answer 1

To expand on schapel.
myObject.getClass().getMethod("myMethod2", new Class[0]).invoke(myObject, new Object[0]);will invoke the method called "myMethod2" on the Object myObject. The Class[] and Object[] arrays hold the ordered parameter types and values for the method respectively. In this case, myMethod2 is assumed to have no parameters.
Primitive parameters/return values in the reflection API are replaced by their wrapper classes. As an example, if I have a method called getInt on the class MyClass that takes a float and returns an int, then you would invoke it thus:
Integer i = new Integer(12);
Method m = MyClass.class.getMethod("getInt", new Class[]{ Float.TYPE });
Float float = (Float)m.invoke(myClassInstance, new Object[]{ i });
Float f = float.floatValue();When dynamically invoking a static method, you can supply null as the instance upon which to invoke the method