org.apache.derby.iapi.sql
Interface Row

All Known Subinterfaces:

ExecIndexRow, ExecRow

All Known Implementing Classes:

IndexRow, IndexValueRow, ValueRow

public interface Row

The Row interface provides methods to get information about the columns in a result row. It uses simple, position (1-based) access to get to columns. Searching for columns by name should be done from the ResultSet interface, where metadata about the rows and columns is available.

Author:

Jeff Lichtman

See Also:

ResultSet, ExecRow

Method Summary

DataValueDescriptor	getColumn(int position) Get a DataValueDescriptor in a Row by ordinal position (1-based).
int	nColumns()
void	setColumn(int position, DataValueDescriptor value) Set a DataValueDescriptor in a Row by ordinal position (1-based).

Method Detail

nColumns

public int nColumns()

getColumn

public DataValueDescriptor getColumn(int position)
                              throws StandardException

Get a DataValueDescriptor in a Row by ordinal position (1-based).

Parameters:

position - The ordinal position of the column.

Returns:

The DataValueDescriptor, null if no such column exists

Throws:

StandardException - Thrown on failure.

setColumn

public void setColumn(int position,
                      DataValueDescriptor value)

Set a DataValueDescriptor in a Row by ordinal position (1-based).

Parameters:

position - The ordinal position of the column.

Returns:

The DataValueDescriptor, null if no such column exists