How to load a multiple column table in the coherence of caches?

How to load a multiple column table in the coherence of caches?
I want to load a multi-column (about 20 columns) table in cache coherence. How to change the following code (spatially how to change the SQL SELECT statement)?
Is the following select statement enough: Select the key, the value of EMPLOYEES ?

public static void bulkLoad(NamedCache cache, Connection conn)
    {
    Statement s;
    ResultSet rs;
    
    try
        {
        s = conn.createStatement();
        rs = s.executeQuery("select key, value from table");
        while (rs.next())
            {
            Integer key   = new Integer(rs.getInt(1));
            String  value = rs.getString(2);
            cache.put(key, value);
            }
        ...
        }
    catch (SQLException e)
        {...}
    }

First of all, you need a class to hold your 20 fields:

public class Data {

    private String field1;
    private String field2;
    private String field3;
    private String field4;
    private String field5;
    private String field6;
    private String field7;
    private String field8;
    private String field9;
    private String field10;
    private String field11;
    private String field12;
    private String field13;
    private String field14;
    private String field15;
    private String field16;
    private String field17;
    private String field18;
    private String field19;
    private String field20;

    public Data() {
    }

    public String getField1() {
        return field1;
    }

    public void setField1(String field1) {
        this.field1 = field1;
    }

    public String getField2() {
        return field2;
    }

    public void setField2(String field2) {
        this.field2 = field2;
    }

    public String getField3() {
        return field3;
    }

    public void setField3(String field3) {
        this.field3 = field3;
    }

    public String getField4() {
        return field4;
    }

    public void setField4(String field4) {
        this.field4 = field4;
    }

    public String getField5() {
        return field5;
    }

    public void setField5(String field5) {
        this.field5 = field5;
    }

    public String getField6() {
        return field6;
    }

    public void setField6(String field6) {
        this.field6 = field6;
    }

    public String getField7() {
        return field7;
    }

    public void setField7(String field7) {
        this.field7 = field7;
    }

    public String getField8() {
        return field8;
    }

    public void setField8(String field8) {
        this.field8 = field8;
    }

    public String getField9() {
        return field9;
    }

    public void setField9(String field9) {
        this.field9 = field9;
    }

    public String getField10() {
        return field10;
    }

    public void setField10(String field10) {
        this.field10 = field10;
    }

    public String getField11() {
        return field11;
    }

    public void setField11(String field11) {
        this.field11 = field11;
    }

    public String getField12() {
        return field12;
    }

    public void setField12(String field12) {
        this.field12 = field12;
    }

    public String getField13() {
        return field13;
    }

    public void setField13(String field13) {
        this.field13 = field13;
    }

    public String getField14() {
        return field14;
    }

    public void setField14(String field14) {
        this.field14 = field14;
    }

    public String getField15() {
        return field15;
    }

    public void setField15(String field15) {
        this.field15 = field15;
    }

    public String getField16() {
        return field16;
    }

    public void setField16(String field16) {
        this.field16 = field16;
    }

    public String getField17() {
        return field17;
    }

    public void setField17(String field17) {
        this.field17 = field17;
    }

    public String getField18() {
        return field18;
    }

    public void setField18(String field18) {
        this.field18 = field18;
    }

    public String getField19() {
        return field19;
    }

    public void setField19(String field19) {
        this.field19 = field19;
    }

    public String getField20() {
        return field20;
    }

    public void setField20(String field20) {
        this.field20 = field20;
    }
}

Then you can use it to store data in you original code

public static void bulkLoad(NamedCache cache, Connection conn)
    {
    Statement s;
    ResultSet rs;

    try
        {
        s = conn.createStatement();
        String sql = "select key, value, value2, " +
                "value3, value4, value5, value6, " +
                "value7, value8, value9, value10 " +
                "value11, value12, value13, value14, " +
                "value15, value16, value17, value18, " +
                "value19, value120 from table";

        rs = s.executeQuery(sql);
        while (rs.next())
            {
            Integer key   = new Integer(rs.getInt(1));
            Data data = new Data();
            data.setField1(rs.getString(2));
            data.setField2(rs.getString(3));
            data.setField3(rs.getString(4));
            data.setField4(rs.getString(5));
            data.setField5(rs.getString(6));
            data.setField6(rs.getString(7));
            data.setField7(rs.getString(8));
            data.setField8(rs.getString(9));
            data.setField9(rs.getString(10));
            data.setField10(rs.getString(11));
            data.setField11(rs.getString(12));
            data.setField12(rs.getString(13));
            data.setField13(rs.getString(14));
            data.setField14(rs.getString(15));
            data.setField15(rs.getString(16));
            data.setField16(rs.getString(17));
            data.setField17(rs.getString(18));
            data.setField18(rs.getString(19));
            data.setField19(rs.getString(20));
            data.setField20(rs.getString(21));
            cache.put(key, data);
            }
        ...
        }
    catch (SQLException e)
        {...}
    }

Of course your data object would need the appropriate field names and you will have no channels for all types. It must also implement equals and hashCode and ideally PortableObject.

Tags: Fusion Middleware

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