Package no.digipost.jdbc

Interface RowMapper<R>

Type Parameters:

R - The type of object this RowMapper yields from a ResultSet

All Known Subinterfaces:

RowMapper.Decupled<T,U,V,W,X,Z,A,B,C,D>, RowMapper.Hextupled<T,U,V,W,X,Z>, RowMapper.Nonupled<T,U,V,W,X,Z,A,B,C>, RowMapper.Octupled<T,U,V,W,X,Z,A,B>, RowMapper.Pentupled<T,U,V,W,X>, RowMapper.Quadrupled<T,U,V,W>, RowMapper.Septupled<T,U,V,W,X,Z,A>, RowMapper.Tripled<T,U,V>, RowMapper.Tupled<T,U>

All Known Implementing Classes:

AttributeMapper, AttributesRowMapper

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 RowMapper<R>

Defines how to map a ResultSet to an object. The given ResultSet is expected to be positioned at the "current" row, i.e. the RowMapper is not expected to be required to do any cursor placement before doing any value extraction.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	RowMapper.Decupled<T,U,V,W,X,Z,A,B,C,D>
static interface	RowMapper.Hextupled<T,U,V,W,X,Z>
static interface	RowMapper.Nonupled<T,U,V,W,X,Z,A,B,C>
static interface	RowMapper.Octupled<T,U,V,W,X,Z,A,B>
static interface	RowMapper.Pentupled<T,U,V,W,X>
static interface	RowMapper.Quadrupled<T,U,V,W>
static interface	RowMapper.Septupled<T,U,V,W,X,Z,A>
static interface	RowMapper.Tripled<T,U,V>
static interface	RowMapper.Tupled<T,U>

Method Summary

Modifier and Type	Method	Description
default <S> RowMapper<S>	andThen(Function<? super R,S> resultMapper)	Create a new mapper which takes the result of this mapper and applies the given Function to yield another result.
default <S> RowMapper.Tupled<R,S>	combinedWith(RowMapper<S> otherMapper)	Create a new row mapper which first runs this mapper and then the given mapper, and combines the two results into a tuple-type container.
R	map(ResultSet resultSet)	Obtain the result from the current row of a ResultSet.
static <R> RowMapper<R>	of(ThrowingFunction<ResultSet,R,SQLException> mapper)

Method Details

of

static <R> RowMapper<R> of(ThrowingFunction<ResultSet,R,SQLException> mapper)

map

R map(ResultSet resultSet)
throws SQLException

Obtain the result from the current row of a ResultSet.

Parameters:

resultSet - the ResultSet

Returns:

the result

Throws:

SQLException - if any error happens when processing the ResultSet. May be if the name/label is not valid, if a database access error occurs, or this method is called on a closed result set.

andThen

default <S> RowMapper<S> andThen(Function<? super R,S> resultMapper)

Create a new mapper which takes the result of this mapper and applies the given Function to yield another result.

Type Parameters:

S - the output type of the given resultMapper function, which also become the type of the result produced by the new row mapper.

Parameters:

resultMapper - the function to apply to the result

Returns:

the new row mapper

combinedWith

default <S> RowMapper.Tupled<R,S> combinedWith(RowMapper<S> otherMapper)

Create a new row mapper which first runs this mapper and then the given mapper, and combines the two results into a tuple-type container.

Parameters:

otherMapper - the mapper to run in addition to this.

Returns:

the new mapper