Package com.landawn.abacus.jdbc

Interface Jdbc.ResultExtractor<T>

Type Parameters:

T -

All Superinterfaces:

com.landawn.abacus.util.Throwables.Function<ResultSet,T,SQLException>

Enclosing class:

Jdbc

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 static interface Jdbc.ResultExtractor<T>
extends com.landawn.abacus.util.Throwables.Function<ResultSet,T,SQLException>

The Interface ResultExtractor.

Field Summary

Fields

Modifier and Type	Field	Description
static final Jdbc.ResultExtractor<com.landawn.abacus.util.DataSet>	TO_DATA_SET

Method Summary

Modifier and Type	Method	Description
default <R> Jdbc.ResultExtractor<R>	andThen(com.landawn.abacus.util.Throwables.Function<? super T,? extends R,SQLException> after)
T	apply(ResultSet rs)	In a lot of scenarios, including PreparedQuery/Dao/SQLExecutor, the input ResultSet will be closed after apply(rs) call.
static <K, V> Jdbc.ResultExtractor<Map<K,List<V>>>	groupTo(Jdbc.RowMapper<K> keyExtractor, Jdbc.RowMapper<V> valueExtractor)
static <K, V, M extends Map<K, List<V>>> Jdbc.ResultExtractor<M>	groupTo(Jdbc.RowMapper<K> keyExtractor, Jdbc.RowMapper<V> valueExtractor, Supplier<? extends M> supplier)
static <K, V, A, D> Jdbc.ResultExtractor<Map<K,D>>	groupTo(Jdbc.RowMapper<K> keyExtractor, Jdbc.RowMapper<V> valueExtractor, Collector<? super V,A,D> downstream)
static <K, V, A, D, M extends Map<K, D>> Jdbc.ResultExtractor<M>	groupTo(Jdbc.RowMapper<K> keyExtractor, Jdbc.RowMapper<V> valueExtractor, Collector<? super V,A,D> downstream, Supplier<? extends M> supplier)
static <R> Jdbc.ResultExtractor<R>	to(com.landawn.abacus.util.Throwables.Function<com.landawn.abacus.util.DataSet,R,SQLException> after)
default Jdbc.BiResultExtractor<T>	toBiResultExtractor()
static Jdbc.ResultExtractor<com.landawn.abacus.util.DataSet>	toDataSet(Jdbc.RowExtractor rowExtractor)
static Jdbc.ResultExtractor<com.landawn.abacus.util.DataSet>	toDataSet(Jdbc.RowFilter rowFilter)
static Jdbc.ResultExtractor<com.landawn.abacus.util.DataSet>	toDataSet(Jdbc.RowFilter rowFilter, Jdbc.RowExtractor rowExtractor)
static Jdbc.ResultExtractor<com.landawn.abacus.util.DataSet>	toDataSet(Class<?> entityClass)	It's stateful.
static <T> Jdbc.ResultExtractor<List<T>>	toList(Jdbc.RowFilter rowFilter, Jdbc.RowMapper<T> rowMapper)
static <T> Jdbc.ResultExtractor<List<T>>	toList(Jdbc.RowMapper<T> rowMapper)
static <T> Jdbc.ResultExtractor<List<T>>	toList(Class<T> targetClass)	It's stateful.
static <K, V> Jdbc.ResultExtractor<Map<K,V>>	toMap(Jdbc.RowMapper<K> keyExtractor, Jdbc.RowMapper<V> valueExtractor)
static <K, V> Jdbc.ResultExtractor<Map<K,V>>	toMap(Jdbc.RowMapper<K> keyExtractor, Jdbc.RowMapper<V> valueExtractor, BinaryOperator<V> mergeFunction)
static <K, V, M extends Map<K, V>> Jdbc.ResultExtractor<M>	toMap(Jdbc.RowMapper<K> keyExtractor, Jdbc.RowMapper<V> valueExtractor, BinaryOperator<V> mergeFunction, Supplier<? extends M> supplier)
static <K, V, M extends Map<K, V>> Jdbc.ResultExtractor<M>	toMap(Jdbc.RowMapper<K> keyExtractor, Jdbc.RowMapper<V> valueExtractor, Supplier<? extends M> supplier)
static <K, V, A, D> Jdbc.ResultExtractor<Map<K,D>>	toMap(Jdbc.RowMapper<K> keyExtractor, Jdbc.RowMapper<V> valueExtractor, Collector<? super V,A,D> downstream)	Deprecated. replaced by groupTo(RowMapper, RowMapper, Collector)
static <K, V, A, D, M extends Map<K, D>> Jdbc.ResultExtractor<M>	toMap(Jdbc.RowMapper<K> keyExtractor, Jdbc.RowMapper<V> valueExtractor, Collector<? super V,A,D> downstream, Supplier<? extends M> supplier)	Deprecated. replaced by groupTo(RowMapper, RowMapper, Collector, Supplier)
static <T> Jdbc.ResultExtractor<List<T>>	toMergedList(Class<T> targetClass)	It's stateful.
static <T> Jdbc.ResultExtractor<List<T>>	toMergedList(Class<T> targetClass, Collection<String> idPropNamesForMerge)	It's stateful.
static <K, V> Jdbc.ResultExtractor<com.landawn.abacus.util.ListMultimap<K,V>>	toMultimap(Jdbc.RowMapper<K> keyExtractor, Jdbc.RowMapper<V> valueExtractor)
static <K, V, C extends Collection<V>, M extends com.landawn.abacus.util.Multimap<K, V, C>> Jdbc.ResultExtractor<M>	toMultimap(Jdbc.RowMapper<K> keyExtractor, Jdbc.RowMapper<V> valueExtractor, Supplier<? extends M> multimapSupplier)

Field Details

TO_DATA_SET

static final Jdbc.ResultExtractor<com.landawn.abacus.util.DataSet> TO_DATA_SET

Method Details

apply

T apply(ResultSet rs)
 throws SQLException

In a lot of scenarios, including PreparedQuery/Dao/SQLExecutor, the input ResultSet will be closed after apply(rs) call. So don't save/return the input ResultSet.

Specified by:

apply in interface com.landawn.abacus.util.Throwables.Function<ResultSet,T,SQLException>

Parameters:

rs -

Throws:

SQLException

andThen

default <R> Jdbc.ResultExtractor<R> andThen(com.landawn.abacus.util.Throwables.Function<? super T,? extends R,SQLException> after)

toBiResultExtractor

default Jdbc.BiResultExtractor<T> toBiResultExtractor()

toMap

static <K,
V> Jdbc.ResultExtractor<Map<K,V>> toMap(Jdbc.RowMapper<K> keyExtractor,
 Jdbc.RowMapper<V> valueExtractor)

Type Parameters:

K - the key type

V - the value type

Parameters:

keyExtractor -

valueExtractor -

Returns:

toMap

static <K,
V,
M extends Map<K,
V>>
Jdbc.ResultExtractor<M> toMap(Jdbc.RowMapper<K> keyExtractor,
 Jdbc.RowMapper<V> valueExtractor,
 Supplier<? extends M> supplier)

Type Parameters:

K - the key type

V - the value type

M -

Parameters:

keyExtractor -

valueExtractor -

supplier -

Returns:

toMap

static <K,
V> Jdbc.ResultExtractor<Map<K,V>> toMap(Jdbc.RowMapper<K> keyExtractor,
 Jdbc.RowMapper<V> valueExtractor,
 BinaryOperator<V> mergeFunction)

Type Parameters:

K - the key type

V - the value type

Parameters:

keyExtractor -

valueExtractor -

mergeFunction -

Returns:

toMap

static <K,
V,
M extends Map<K,
V>>
Jdbc.ResultExtractor<M> toMap(Jdbc.RowMapper<K> keyExtractor,
 Jdbc.RowMapper<V> valueExtractor,
 BinaryOperator<V> mergeFunction,
 Supplier<? extends M> supplier)

Type Parameters:

K - the key type

V - the value type

M -

Parameters:

keyExtractor -

valueExtractor -

mergeFunction -

supplier -

Returns:

toMap

@Deprecated
static <K,
V,
A,
D> Jdbc.ResultExtractor<Map<K,D>> toMap(Jdbc.RowMapper<K> keyExtractor,
 Jdbc.RowMapper<V> valueExtractor,
 Collector<? super V,A,D> downstream)

Deprecated.

replaced by groupTo(RowMapper, RowMapper, Collector)

Type Parameters:

K - the key type

V - the value type

A -

D -

Parameters:

keyExtractor -

valueExtractor -

downstream -

Returns:

See Also:

• groupTo(RowMapper, RowMapper, Collector)

toMap

@Deprecated
static <K,
V,
A,
D,
M extends Map<K,
D>>
Jdbc.ResultExtractor<M> toMap(Jdbc.RowMapper<K> keyExtractor,
 Jdbc.RowMapper<V> valueExtractor,
 Collector<? super V,A,D> downstream,
 Supplier<? extends M> supplier)

Deprecated.

replaced by groupTo(RowMapper, RowMapper, Collector, Supplier)

Type Parameters:

K - the key type

V - the value type

A -

D -

M -

Parameters:

keyExtractor -

valueExtractor -

downstream -

supplier -

Returns:

See Also:

• groupTo(RowMapper, RowMapper, Collector, Supplier)

toMultimap

static <K,
V>
Jdbc.ResultExtractor<com.landawn.abacus.util.ListMultimap<K,V>> toMultimap(Jdbc.RowMapper<K> keyExtractor,
 Jdbc.RowMapper<V> valueExtractor)

Type Parameters:

K - the key type

V - the value type

Parameters:

keyExtractor -

valueExtractor -

Returns:

toMultimap

static <K,
V,
C extends Collection<V>,
M extends com.landawn.abacus.util.Multimap<K,
V,
C>>
Jdbc.ResultExtractor<M> toMultimap(Jdbc.RowMapper<K> keyExtractor,
 Jdbc.RowMapper<V> valueExtractor,
 Supplier<? extends M> multimapSupplier)

Type Parameters:

K - the key type

V - the value type

C -

M -

Parameters:

keyExtractor -

valueExtractor -

multimapSupplier -

Returns:

groupTo

static <K,
V> Jdbc.ResultExtractor<Map<K,List<V>>> groupTo(Jdbc.RowMapper<K> keyExtractor,
 Jdbc.RowMapper<V> valueExtractor)

Type Parameters:

K - the key type

V - the value type

Parameters:

keyExtractor -

valueExtractor -

Returns:

Throws:

SQLException

groupTo

static <K,
V,
M extends Map<K,
List<V>>>
Jdbc.ResultExtractor<M> groupTo(Jdbc.RowMapper<K> keyExtractor,
 Jdbc.RowMapper<V> valueExtractor,
 Supplier<? extends M> supplier)

Type Parameters:

K - the key type

V - the value type

M -

Parameters:

keyExtractor -

valueExtractor -

supplier -

Returns:

groupTo

static <K,
V,
A,
D> Jdbc.ResultExtractor<Map<K,D>> groupTo(Jdbc.RowMapper<K> keyExtractor,
 Jdbc.RowMapper<V> valueExtractor,
 Collector<? super V,A,D> downstream)

Type Parameters:

K - the key type

V - the value type

A -

D -

Parameters:

keyExtractor -

valueExtractor -

downstream -

Returns:

groupTo

static <K,
V,
A,
D,
M extends Map<K,
D>>
Jdbc.ResultExtractor<M> groupTo(Jdbc.RowMapper<K> keyExtractor,
 Jdbc.RowMapper<V> valueExtractor,
 Collector<? super V,A,D> downstream,
 Supplier<? extends M> supplier)

Type Parameters:

K - the key type

V - the value type

A -

D -

M -

Parameters:

keyExtractor -

valueExtractor -

downstream -

supplier -

Returns:

toList

static <T> Jdbc.ResultExtractor<List<T>> toList(Jdbc.RowMapper<T> rowMapper)

toList

static <T> Jdbc.ResultExtractor<List<T>> toList(Jdbc.RowFilter rowFilter,
 Jdbc.RowMapper<T> rowMapper)

toList

@SequentialOnly
@Stateful
static <T> Jdbc.ResultExtractor<List<T>> toList(Class<T> targetClass)

It's stateful. Don't save or cache the returned instance for reuse or use it in parallel stream.

Type Parameters:

T -

Parameters:

targetClass -

Returns:

toMergedList

@SequentialOnly
@Stateful
static <T> Jdbc.ResultExtractor<List<T>> toMergedList(Class<T> targetClass)

It's stateful. Don't save or cache the returned instance for reuse or use it in parallel stream.

Type Parameters:

T -

Parameters:

targetClass -

Returns:

See Also:

• DataSet.toMergedEntities(Class)

toMergedList

@SequentialOnly
@Stateful
static <T> Jdbc.ResultExtractor<List<T>> toMergedList(Class<T> targetClass,
 Collection<String> idPropNamesForMerge)

It's stateful. Don't save or cache the returned instance for reuse or use it in parallel stream.

Type Parameters:

T -

Parameters:

targetClass -

Returns:

See Also:

• DataSet.toMergedEntities(Class, Collection, Collection)

toDataSet

@SequentialOnly
@Stateful
static Jdbc.ResultExtractor<com.landawn.abacus.util.DataSet> toDataSet(Class<?> entityClass)

It's stateful. Don't save or cache the returned instance for reuse or use it in parallel stream.

Parameters:

entityClass -

Returns:

toDataSet

static Jdbc.ResultExtractor<com.landawn.abacus.util.DataSet> toDataSet(Jdbc.RowFilter rowFilter)

toDataSet

static Jdbc.ResultExtractor<com.landawn.abacus.util.DataSet> toDataSet(Jdbc.RowExtractor rowExtractor)

toDataSet

static Jdbc.ResultExtractor<com.landawn.abacus.util.DataSet> toDataSet(Jdbc.RowFilter rowFilter,
 Jdbc.RowExtractor rowExtractor)

to

static <R> Jdbc.ResultExtractor<R> to(com.landawn.abacus.util.Throwables.Function<com.landawn.abacus.util.DataSet,R,SQLException> after)