io.asyncer.r2dbc.mysql.api

Interface MySqlResult

All Superinterfaces:

io.r2dbc.spi.Result

public interface MySqlResult
extends io.r2dbc.spi.Result

A Result for results of a query against a MySQL database.

Note: A query may return multiple MySqlResults.

Since:

1.1.3

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	MySqlResult.Message Message segment reported as result of the statement processing.
static interface	MySqlResult.OkSegment Insert result segment consisting of a last inserted id and affected rows count, and only appears if the statement is an insert, the table has an auto-increment identifier column, and the statement is not using the RETURNING clause.
static interface	MySqlResult.OutSegment Out parameters segment consisting of readable data.
static interface	MySqlResult.RowSegment Row segment consisting of row data.
static interface	MySqlResult.Segment Marker interface for a MySQL result segment.
static interface	MySqlResult.UpdateCount Update count segment consisting providing an affected rows count.

Method Summary

Modifier and Type	Method and Description
MySqlResult	filter(Predicate<io.r2dbc.spi.Result.Segment> filter)
<T> Flux<T>	flatMap(Function<io.r2dbc.spi.Result.Segment,? extends Publisher<? extends T>> mappingFunction)
Mono<Long>	getRowsUpdated()
<T> Flux<T>	map(BiFunction<io.r2dbc.spi.Row,io.r2dbc.spi.RowMetadata,? extends T> mappingFunction)
<T> Flux<T>	map(Function<? super io.r2dbc.spi.Readable,? extends T> mappingFunction)

Method Detail

getRowsUpdated

Mono<Long> getRowsUpdated()

Specified by:

getRowsUpdated in interface io.r2dbc.spi.Result

Returns:

a Mono emitting the number of rows updated, or empty if it is not an update result.

Throws:

IllegalStateException - if the result was consumed

map

<T> Flux<T> map(BiFunction<io.r2dbc.spi.Row,io.r2dbc.spi.RowMetadata,? extends T> mappingFunction)

Specified by:

map in interface io.r2dbc.spi.Result

Type Parameters:

T - the type of the mapped value

Parameters:

mappingFunction - that maps a Row and RowMetadata to a value

Returns:

a Flux of mapped results

Throws:

IllegalArgumentException - if mappingFunction is null

IllegalStateException - if the result was consumed

map

<T> Flux<T> map(Function<? super io.r2dbc.spi.Readable,? extends T> mappingFunction)

Specified by:

map in interface io.r2dbc.spi.Result

Type Parameters:

T - the type of the mapped value

Parameters:

mappingFunction - that maps a Readable to a value

Returns:

a Flux of mapped results

Throws:

IllegalArgumentException - if mappingFunction is null

IllegalStateException - if the result was consumed

See Also:

MySqlReadable, MySqlRow, MySqlOutParameters

filter

MySqlResult filter(Predicate<io.r2dbc.spi.Result.Segment> filter)

Specified by:

filter in interface io.r2dbc.spi.Result

Parameters:

filter - to apply to each element to determine if it should be included

Returns:

a MySqlResult that will only emit results that match the predicate

Throws:

IllegalArgumentException - if predicate is null

IllegalStateException - if the result was consumed

flatMap

<T> Flux<T> flatMap(Function<io.r2dbc.spi.Result.Segment,? extends Publisher<? extends T>> mappingFunction)

Specified by:

flatMap in interface io.r2dbc.spi.Result

Type Parameters:

T - the type of the mapped value

Parameters:

mappingFunction - that maps a Result.Segment a to a Publisher

Returns:

a Flux of mapped results

Throws:

IllegalArgumentException - if mappingFunction is null

IllegalStateException - if the result was consumed