Invalid OCI handle when creating a Blob

Question

I have an application that talks to an Oracle 11gR2 database. I am using the OCCI C++ library. I can call SPs with no problem when they do not contain a Blob. Now I need to pass in a Blob to a SP and I am getting an ORA-32102: invalid OCI handle exception thrown when I call blob->open(OCCI_LOB_WRITEONLY). This same style of code works when I call a SP that does not have a Blob parameter so naturally I am confused. What could be wrong with this?
Thanks,
Aaron
FYI, Here's the code segment in question
Statement *statement;    
try {
     // create the connection
     statement = myconnection->createStatement();
     // create the start timestamp
     // create the end timestamp
     // create the blob of data
     blob = new Blob(myconnection);
     blob->open(OCCI_LOB_WRITEONLY);  // <---------------------------------------- here the exception ORA-32102 is thrown
     blob->write(packSize,(uint8_t*)dataBlock,dataBlockSize);
     blob->close();
     // create statement and set input parameters
     statement->setSQL("BEGIN network_analysis.update_network_ip(:1,:2,:3,:4,:5); END;");
     statement->setInt(1,dbconnect->networkMetricId);
     statement->setTimestamp(2,startTime);
     statement->setTimestamp(3,endTime);
     statement->setBlob(4,*blob); // setBlob 2nd parameter is a reference
     statement->setInt(5,numEntries);
     statement->executeUpdate();
} catch (SQLException &e) {
     FATALF("%s",e.what());
myconnection->terminateStatement(statement); // free resource
delete blob;Edited by: user8859202 on Dec 16, 2009 12:16 PM

Answer 1

Update, I found the answer which is streams must be used. The setBinaryStreamMode is used and after executeUpdate, I update the stream.