org.jdbi.v3.core.mapper

Interface ColumnMapper<T>

Type Parameters:

T - The mapped type

All Known Implementing Classes:

EnumMapper

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface ColumnMapper<T>

Maps result set columns to objects.

See Also:

ColumnMapperFactory, ColumnMappers, ResultBearing.map(ColumnMapper), Configurable.registerColumnMapper(ColumnMapper), Configurable.registerColumnMapper(Type, ColumnMapper), StatementContext.findColumnMapperFor(Type)

Method Summary

Modifier and Type	Method and Description
T	map(ResultSet r, int columnNumber, StatementContext ctx) Map the given column of the current row of the result set to an Object.
default T	map(ResultSet r, String columnLabel, StatementContext ctx) Map the given column of the current row of the result set to an Object.

Method Detail

map

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

Map the given column of the current row of the result set to an Object. This method should not cause the result set to advance; allow Jdbi to do that, please.

Parameters:

r - the result set being iterated

columnNumber - the column number to map (starts at 1)

ctx - the statement context

Returns:

the value to return for this column

Throws:

SQLException - if anything goes wrong go ahead and let this percolate; Jdbi will handle it

map

default T map(ResultSet r,
              String columnLabel,
              StatementContext ctx)
       throws SQLException

Map the given column of the current row of the result set to an Object. This method should not cause the result set to advance; allow Jdbi to do that, please.

Parameters:

r - the result set being iterated

columnLabel - the column label to map

ctx - the statement context

Returns:

the value to return for this column

Throws:

SQLException - if anything goes wrong go ahead and let this percolate; Jdbi will handle it