// Initially set generateRow to true for each input row.

generateRow = true;

// Initially set isRoot to false for each input row.

isRoot = false;


// Check if input employee id and name is null.

if (isNull ("EMP_ID_INP") || isNull ("EMP_NAME_INP"))

{

     incrementErrorCount(1);

     // If input employee id and/or name is null, don't generate a output 

     // row for this input row.

     generateRow = false;
} else {

     // Set the output port values.

     EMP_ID_OUT = EMP_ID_INP;

     EMP_NAME_OUT = EMP_NAME_INP;

}


if (isNull ("EMP_DESC_INP"))

{

     setNull("EMP_DESC_OUT");

} else {

     EMP_DESC_OUT = EMP_DESC_INP;

}

boolean isParentEmpIdNull = isNull("EMP_PARENT_EMPID");


if(isParentEmpIdNull)

{

     // This employee is the root for the hierarchy.

     isRoot = true;

     logInfo("This is the root for this hierarchy.");

     setNull("EMP_PARENT_EMPNAME");

}


synchronized(lock)

{

     // If the employee is not the root for this hierarchy, get the 

     // corresponding parent id.

     if(!isParentEmpIdNull)

          EMP_PARENT_EMPNAME = (String) (empMap.get(new Integer (EMP_PARENT_EMPID)));

     // Add employee to the map for future reference.

     empMap.put (new Integer(EMP_ID_INP), EMP_NAME_INP);

}


// Generate row if generateRow is true.

if(generateRow)

     generateRow();