SQLJ classes (Will not insert result into table)

Question

/*@lineinfo:filename=SqljCircle*//*@lineinfo:user-code*//*@lineinfo:1^1*/import java.sql.SQLException ;
import oracle.sqlj.runtime.Oracle;
// iterator for the select
/*@lineinfo:generated-code*//*@lineinfo:5^1*/
// SQLJ iterator declaration:
class myIter
extends sqlj.runtime.ref.ResultSetIterImpl
implements sqlj.runtime.NamedIterator
public myIter(sqlj.runtime.profile.RTResultSet resultSet)
throws java.sql.SQLException
super(resultSet);
RadiusNdx = findColumn("Radius");
public int Radius()
throws java.sql.SQLException
return resultSet.getIntNoNull(RadiusNdx);
private int RadiusNdx;
/*@lineinfo:user-code*//*@lineinfo:5^33*/
class SqljCircle
//Main method
public static void main (String args[])
try {
// set the default connection to the URL, user, and password
// specified in your connect.properties file
Oracle.connect(SqljCircle.class, "connect.properties");
SqljCircle ti = new SqljCircle();
ti.runExample();
} catch (SQLException e) {
System.err.println("Error running the example: " + e);
} //End of method main
//Method that runs the example
void runExample() throws SQLException
myIter iter;
/*@lineinfo:generated-code*//*@lineinfo:28^1*/
// #sql iter = { select radius from RADIUS_VALS };
sqlj.runtime.ConnectionContext __sJT_connCtx = sqlj.runtime.ref.DefaultContext.getDefaultContext();
if (__sJT_connCtx == null) sqlj.runtime.error.RuntimeRefErrors.raise_NULL_CONN_CTX();
sqlj.runtime.ExecutionContext __sJT_execCtx = __sJT_connCtx.getExecutionContext();
if (__sJT_execCtx == null) sqlj.runtime.error.RuntimeRefErrors.raise_NULL_EXEC_CTX();
synchronized (__sJT_execCtx) {
sqlj.runtime.profile.RTStatement __sJT_stmt = __sJT_execCtx.registerStatement(__sJT_connCtx, SqljCircle_SJProfileKeys.getKey(0), 0);
try
sqlj.runtime.profile.RTResultSet __sJT_result = __sJT_execCtx.executeQuery();
iter = new myIter(__sJT_result);
finally
__sJT_execCtx.releaseStatement();
/*@lineinfo:user-code*//*@lineinfo:28^45*/
while (iter.next()) {
// To see the radius values:
System.out.println(iter.Radius());
int radInput = iter.Radius();
double result=area(radInput);
// To see the result values:
System.out.println(result);
/*@lineinfo:generated-code*//*@lineinfo:38^1*/
//#sql { insert into RADIUS_VALS values(:radInput,:result) };
sqlj.runtime.ConnectionContext __sJT_connCtx = sqlj.runtime.ref.DefaultContext.getDefaultContext();
if (__sJT_connCtx == null) sqlj.runtime.error.RuntimeRefErrors.raise_NULL_CONN_CTX();
sqlj.runtime.ExecutionContext __sJT_execCtx = __sJT_connCtx.getExecutionContext();
if (__sJT_execCtx == null) sqlj.runtime.error.RuntimeRefErrors.raise_NULL_EXEC_CTX();
int __sJT_1 = radInput;
double __sJT_2 = result;
synchronized (__sJT_execCtx) {
sqlj.runtime.profile.RTStatement __sJT_stmt = __sJT_execCtx.registerStatement(__sJT_connCtx, SqljCircle_SJProfileKeys.getKey(0), 1);
try
__sJT_stmt.setInt(1, __sJT_1);
__sJT_stmt.setDouble(2, __sJT_2);
__sJT_execCtx.executeUpdate();
finally
__sJT_execCtx.releaseStatement();
/*@lineinfo:user-code*//*@lineinfo:38^51*/
/*@lineinfo:generated-code*//*@lineinfo:39^1*/
//#sql { commit };
sqlj.runtime.ConnectionContext __sJT_connCtx = sqlj.runtime.ref.DefaultContext.getDefaultContext();
if (__sJT_connCtx == null) sqlj.runtime.error.RuntimeRefErrors.raise_NULL_CONN_CTX();
sqlj.runtime.ExecutionContext __sJT_execCtx = __sJT_connCtx.getExecutionContext();
if (__sJT_execCtx == null) sqlj.runtime.error.RuntimeRefErrors.raise_NULL_EXEC_CTX();
synchronized (__sJT_execCtx) {
sqlj.runtime.profile.RTStatement __sJT_stmt = __sJT_execCtx.registerStatement(__sJT_connCtx, SqljCircle_SJProfileKeys.getKey(0), 2);
try
__sJT_execCtx.executeUpdate();
finally
__sJT_execCtx.releaseStatement();
/*@lineinfo:user-code*//*@lineinfo:39^13*/
iter.close();
// Utility function to calculate the area
public static double area (int rad) {
double pi=3.1415926;
double areacircle=pi*rad*rad;
return areacircle;
}/*@lineinfo:generated-code*/class SqljCircle_SJProfileKeys
private static SqljCircle_SJProfileKeys inst = null;
public static java.lang.Object getKey(int keyNum)
throws java.sql.SQLException
if (inst == null)
inst = new SqljCircle_SJProfileKeys();
return inst.keys[keyNum];
private final sqlj.runtime.profile.Loader loader = sqlj.runtime.RuntimeContext.getRuntime().getLoaderForClassT(getClass());
private java.lang.Object[] keys;
private SqljCircle_SJProfileKeys()
throws java.sql.SQLException
keys = new java.lang.Object[1];
keys[0] = sqlj.runtime.ref.DefaultContext.getProfileKey(loader, "SqljCircle_SJProfile0");
This SQLJ class compiles and runs ok, it retrieves a number from a table in my database, computes the result and prints them both out but it will not insert the result back into a table in my database, WHY????
Philip.

Answer 1

Thanks a million to all of you, the final working code;
Zed
<%
          String name = request.getParameter("name");
          String connectionURL = "jdbc:mysql://localhost:3306/";
          String dbName = "test";
          String userName = "root";
          String password = "";
     Connection connection = null;
     PreparedStatement pstatement = null;
     Class.forName("com.mysql.jdbc.Driver").newInstance();
try {
     connection = DriverManager.getConnection(connectionURL+dbName,userName,password);
     String queryString = "INSERT INTO employees(id, name) VALUES (id, " + "'" + name + "'" + ")";
     pstatement = connection.prepareStatement(queryString);
     pstatement.executeUpdate(queryString);
     catch (Exception ex) {
     out.println("Error = " + ex.toString());
     pstatement.close();
     connection.close();
%>