Change Column Type of jtable when table populate from resultset

Question

I have worker for fill the jtable from resultset like below;

public class WorkerFillTable extends SwingWorker {
          


        

Answer 1

I would recommend you to use a subclass of AbstractTableModel and override the getColumnClass method to set the correct data type for the JTable.

public class CustomTableModel extends AbstractTableModel
{
    @Override
    public int getRowCount() 
    {
    }

    @Override
    public int getColumnCount() 
    {
    }

    @Override
    public Object getValueAt(int rowIndex, int columnIndex) 
    {
    }

    @Override
    public String getColumnName(int index)
    {
    }

    @Override
    public Class<String> getColumnClass(int i)
    {
        //return the Specific class for each column based on index i
    }

}

Answer 2

JDBCAdapter, which extends AbstractTableModel, illustrates a typical mapping between relational database and Java data types. It may be seen here, and a complete example may be found in samples/demo/jfc/TableExample, found among the Java SE Development Kit 8u25 Demos and Samples Downloads. In outline,

• Override getColumnClass().

• Get the column's data type from ResultSetMetaData.

• Use switch(type) to return the correct type-token.

Also consider a SwingWorker<Row, Row> for finer granularity in publish()/process().