java.sql.SQLSyntaxErrorException: The class 'TempSP' does not exist or is inaccessible - derby

Question

I am trying to create stored procedure in derby database using java.
public class TestDrive {
public static void main (String[] args) throws SQLException, ClassNotFoundException{
Connection conn = null;
CallableStatement stmt = null;
try {
try{
Class.forName("org.apache.derby.jdbc.ClientDriver").;
} catch(ClassNotFoundException e){
System.out.println("Can't load the database driver");
return;
}
conn = DriverManager.getConnection("jdbc:derby://localhost:1527/Connections_DB", "Connections_DB", "KaayRey");
stmt = conn.prepareCall("CALL NameOFstoreProcedure4( ?, ? )");
stmt.setString(1, "Kitu");
stmt.setString(2, "KaayChalay");
stmt.execu`enter code here`te();
} finally {
if (stmt != null) {
stmt.close();
}
if (conn != null) {
conn.close();
}
}
}
} //END OF CLASS TestDrive.java
TempSP.java Code:-
public class TempSP {
public static void NameOFSP(String uname, String upass)throws SQLException {
PreparedStatement stmt = null;
ResultSet res = null;
String message = null ;
try{
try{`enter code here`
Class.forName("org.apache.derby.jdbc.ClientDriver");
} catch(ClassNotFoundException e){
System.out.println("Can't load the database driver");
return;
}
String dbURL = "jdbc:derby://localhost:1527/Connections_DB";
Connection conn = DriverManager.getConnection(dbURL, "Connections_DB", "KaayRey");
Stri`enter code here`ng sql = "INSERT INTO USERS2(USER_NAME, USER_PASSWORD) VALUES(?, ?)";
stmt = conn.prepareStatement(sql);
stmt.setString(1, uname);
stmt.setString(2, upass);
int row = stmt.executeUpdate(sql);
}catch (SQLException ex) {
message = "ERROR 1 : " + ex.getMessage();
ex.printStackTrace();
}
}
} // END OD TempSP.java
But when I run run my TestDrive.java file it will gives me following error:-
"Exception in thread "main" java.sql.SQLSyntaxErrorException: The class 'TempSP' does not exist or is inaccessible. This can happen if the class is not public.
at org.apache.derby.client.am.SQLExceptionFactory40.getSQLException(Unknown Source)
at org.apache.derby.client.am.SqlException.getSQLException(Unknown Source)
at org.apache.derby.client.am.Connection.prepareCall(Unknown Source)
at FriendsConnectionPack.TestDrive.main(TestDrive.java:34)
Caused by: org.apache.derby.client.am.SqlException: The class 'TempSP' does not exist or is inaccessible. This can happen if the class is not public.
at org.apache.derby.client.am.Statement.completeSqlca(Unknown Source)
at org.apache.derby.client.net.NetStatementReply.parsePrepareError(Unknown Source)
at org.apache.derby.client.net.NetStatementReply.parsePRPSQLSTTreply(Unknown Source)
at org.apache.derby.client.net.NetStatementReply.readPrepare(Unknown Source)
at org.apache.derby.client.net.StatementReply.readPrepare(Unknown Source)
at org.apache.derby.client.net.NetStatement.readPrepare_(Unknown Source)
at org.apache.derby.client.am.Statement.readPrepare(Unknown Source)
at org.apache.derby.client.am.PreparedStatement.readPrepareDescribeInput(Unknown Source)
at org.apache.derby.client.am.PreparedStatement.flowPrepareDescribeInputOutput(Unknown Source)
at org.apache.derby.client.am.PreparedStatement.prepare(Unknown Source)
at org.apache.derby.client.am.Connection.prepareCallX(Unknown Source)
... 2 more
Caused by: org.apache.derby.client.am.SqlException: Java exception: 'TempSP: java.lang.ClassNotFoundException'.
... 13 more
Java Result: 1
BUILD SUCCESSFUL (total time: 1 second)"
Derby Stored Procedure Code As Follows:-
CREATE PROCEDURE NameOFstoreProcedure5(User_Name VARCHAR(50), User_Password VARCHAR(20))
PARAMETER STYLE JAVA READS SQL DATA LANGUAGE JAVA EXTERNAL NAME
'FriendsConnectionPack.TempSP.NameOFSP'

Answer 1

I encountered the same problem and the solution was setting the stored procedure's code in a jar file and then using the derby's systems procedures to register the jar and setting the derby's class path as shown next
To add a jar to Derby:
CALL sqlj.install_jar('PATH TO JAR FILE', 'DATABASE.IDENTIFIER FOR THE JAR', 0)
To add the jar to derby's internal classpath
CALL SYSCS_UTIL.SYSCS_SET_DATABASE_PROPERTY(
'derby.database.classpath',
'colonSeparatedJarFiles')
Hope this helps someone