Mapping SQL UDT to java class - Mailing list pgsql-jdbc

Hi

We have some user defined data types in our database. For instance, ICAO type is defined as follow:

CREATE TYPE "ICAO" AS

   ("Type" smallint,

"Addr" bytea);

In my java client side, I have:

public class ICAO implements SQLData {

            @Override

            public void readSQL(SQLInput aStream, String aTypeName)

            {

                            typeName = aTypeName;

                            try {

                                            icaoType = aStream.readShort();

                                            icaoAddr = aStream.readBytes();

                            }

                            catch (SQLException e) {

                                            e.printStackTrace();

                            }

            }

            @Override

            public void writeSQL(SQLOutput aStream)

            {

                            try {

                                            aStream.writeShort(icaoType);

                                            aStream.writeBytes(icaoAddr);

                            }

                            catch (SQLException e) {

                                            e.printStackTrace();

                            }

            }

            @Override

            public String getSQLTypeName()

            {

                            return typeName;

            }

            public void setType(short aType)

            {

                            icaoType = aType;

            }

            public void setAddr(String aHexAddr)

            {

                            icaoAddr = numToBytes(hexToInt(aHexAddr));

            }

private short icaoType;  

private byte[] icaoAddr;

private String typeName = "ICAO";

            // ******* unit test driver

            public static void main(String[] args)

            {

                            final String AVLC_SELECT = "SELECT \"RSSI\", \"SymbolCount\", \"ReedSolErr\", \"Quality\", \"FlagCount\", \"LowConfidence\", \"BrokenMsg\", \"BadCRCCount\", \"AVLC\".\"DateTime\", \"TimeStamp\", \"LineNum\", \"SourceFiles\".\"Station\", \"AVLC\".\"Src\", \"Dest\", \"AVLC\".\"Msg\" AS \"AVLCMsg\", \"SQP\".\"Msg\" AS \"SQPMsg\", \"AVLC\".\"RadioAddr\", \"FileName\", \"LogType\", \"SentRecv\", \"AG\", \"CR\", \"P\", \"F\", \"Type\", \"NS\", \"NR\", \"Score\", \"Delay\", \"SREJPairs\", \"XIDType\", \"Information\", \"XIDInfo\", \"BlockID\", \"Label\", \"Address\", \"MSN\", \"Text\", \"Agency\", \"Flight\", Stations.\"RadioNum\", Stations.\"Freq\", COALESCE(Stations.\"Char\", '?') \"Char\", \"UpDownOther\"(\"AVLC\".\"RadioAddr\", \"AVLC\".\"Src\", \"Dest\"), \"RFLength\"(\"AVLC\".\"Msg\"), \"ULReportInd\".\"DateTime\" \"ULReportIndDateTime\", \"CSMADecisionTime\", \"TM1\", \"TM2\", \"TM3\", \"p\""

                                                            + "FROM \"AVLC\""

                                                            + "NATURAL JOIN \"SourceFiles\""

                                                            + "LEFT OUTER JOIN \"SQP\" USING(\"RadioAddr\", \"SQPFileNum\", \"SQPLineNum\")"

                                                            + "LEFT OUTER JOIN \"ULReportInd\" USING(\"RadioAddr\", \"ULReportIndFileNum\", \"ULReportIndLineNum\")"

                                                            + "LEFT OUTER JOIN \"ARINC618\" USING(\"FileNum\", \"LineNum\")"

                                                            + "LEFT OUTER JOIN Stations USING(\"Station\", \"RadioAddr\")";

                            final String AVLC_AC_WHERE = "WHERE (\"Dest\" = ? OR \"Src\" = ?) AND \"AVLC\".\"DateTime\" BETWEEN ? AND ?";

                            final String STATIONS = "WITH Stations AS"

                                                            + "("

                                                            + "SELECT DISTINCT \"Station\", \"RadioAddr\", \"RadioNum\", \"Freq\", \"Char\""

                                                            + "FROM \"Radios\""

                                                            + "NATURAL JOIN \"SourceFiles\""

                                                            + "LEFT OUTER JOIN \"InstChar\" USING(\"Freq\")"

                                                            + ")";

                            String query = STATIONS + AVLC_SELECT + AVLC_AC_WHERE;

                            ICAO clnpIcao = new ICAO();

                            clnpIcao.setType((short)1);

                            clnpIcao.setAddr("400AE7");

                            Connection pgConn = (new VdlPgDBConnection("Field20151015")).getConnection();

                            try {

                                            PreparedStatement stm = pgConn.prepareStatement(query);

Map<String, Class<?>> newMap = pgConn.getTypeMap();

                                            if (newMap == null)

                                            {

                                                            newMap = new java.util.HashMap<String, Class<?>>();

                                            }

                                            newMap.put("public.ICAO", ICAO.class);

                                            pgConn.setTypeMap(newMap);

                                            Timestamp st = Timestamp.valueOf("2015-10-15 10:00:00.0");

                                            Timestamp et = Timestamp.valueOf("2015-10-15 12:00:00.0");

                                            stm.setObject(1, clnpIcao);

                                            stm.setObject(2, clnpIcao);

                                            stm.setTimestamp(3,st);

                                            stm.setTimestamp(4,st);

                                            ResultSet result = stm.executeQuery();

                                            List<List<Object>> table = new ArrayList<List<Object>>();

                                            List<Object> row = new ArrayList<Object>();

                                            Object colData;

                                            while (result.next())

                                            {

                                                            for (int i = 1; i <= result.getMetaData().getColumnCount(); i++)

                                                            {

                                                                            colData = result.getObject(i);

                                                                            if (colData != null)

                                                                                            row.add(colData);

                                                                            else

                                                                                            row.add("<null>");

                                                            }

                                                            System.out.print("\n row = " + row);

                                                            table.add(row);

                                            }

                            }

                            catch (SQLException e)

                            {

                                            e.printStackTrace();

                            }

            }   // ******* end of main()

}   // end of ICAO class

The error message I got is:

“Can't infer the SQL type to use for an instance of vdlmenu.ICAO. Use setObject() with an explicit Types value to specify the type to use. ”

However, for the overloaded setObject((int parameterIndex, Object x, SQLType targetSqlType))  and setObject(int parameterIndex, Object x, int targetSqlType),

What is the value for the 3^rd parameter?

Thanks

Ning