org.skife.jdbi.v2.util

Class SingleColumnMapper<T>

java.lang.Object

org.skife.jdbi.v2.util.SingleColumnMapper<T>

All Implemented Interfaces:

ResultSetMapper<T>

public class SingleColumnMapper<T>
extends Object
implements ResultSetMapper<T>

Adapts a ResultColumnMapper into a ResultSetMapper by mapping a single column.

Constructor Summary

Constructors

Constructor and Description
SingleColumnMapper(ResultColumnMapper<T> columnMapper) Constructs a result set mapper which maps the first column.
SingleColumnMapper(ResultColumnMapper<T> columnMapper, int columnNumber) Constructs a result set mapper which maps the given column number.
SingleColumnMapper(ResultColumnMapper<T> columnMapper, String columnLabel) Constructs a result set mapper which maps the column with the given label.

Method Summary

Modifier and Type	Method and Description
T	map(int index, ResultSet r, StatementContext ctx) Map the row the result set is at when passed in.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SingleColumnMapper

public SingleColumnMapper(ResultColumnMapper<T> columnMapper)

Constructs a result set mapper which maps the first column.

Parameters:

columnMapper - the column mapper to delegate to for mapping.

SingleColumnMapper

public SingleColumnMapper(ResultColumnMapper<T> columnMapper,
                          int columnNumber)

Constructs a result set mapper which maps the given column number.

Parameters:

columnMapper - the column mapper to delegate to for mapping

columnNumber - the column number (1-based) to map

SingleColumnMapper

public SingleColumnMapper(ResultColumnMapper<T> columnMapper,
                          String columnLabel)

Constructs a result set mapper which maps the column with the given label.

Parameters:

columnMapper - the column mapper to delegate to for mapping

columnLabel - the column label to map

Method Detail

map

public T map(int index,
             ResultSet r,
             StatementContext ctx)
      throws SQLException

Description copied from interface: ResultSetMapper

Map the row the result set is at when passed in. This method should not cause the result set to advance, allow jDBI to do that, please.

Specified by:

map in interface ResultSetMapper<T>

Parameters:

index - which row of the result set we are at, starts at 0

r - the result set being iterated

Returns:

the value to return for this row

Throws:

SQLException - if anything goes wrong go ahead and let this percolate, jDBI will handle it