Package org.jdbi.v3.sqlobject.statement.internal

Class ResultReturner

java.lang.Object

org.jdbi.v3.sqlobject.statement.internal.ResultReturner

Direct Known Subclasses:

ResultReturner.CollectedResultReturner, ResultReturner.ConsumerResultReturner, ResultReturner.IteratorReturner, ResultReturner.ResultIterableReturner, ResultReturner.ResultIteratorReturner, ResultReturner.SingleValueReturner, ResultReturner.StreamReturner, ResultReturner.VoidReturner

abstract class ResultReturner
extends java.lang.Object

Helper class used by the CustomizingStatementHandlers to assemble the result Collection, Iterable, etc.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) static class	ResultReturner.CollectedResultReturner<T>
(package private) static class	ResultReturner.ConsumeEachResultReturner
(package private) static class	ResultReturner.ConsumeIterableResultReturner
(package private) static class	ResultReturner.ConsumeIteratorResultReturner
(package private) static class	ResultReturner.ConsumerResultReturner
(package private) static class	ResultReturner.ConsumeStreamResultReturner
(package private) static class	ResultReturner.IteratorReturner
(package private) static class	ResultReturner.ResultIterableReturner
(package private) static class	ResultReturner.ResultIteratorReturner
(package private) static class	ResultReturner.SingleValueReturner<T>
(package private) static class	ResultReturner.StreamReturner
(package private) static class	ResultReturner.VoidReturner

Constructor Summary

Constructors

Constructor	Description
ResultReturner()

Method Summary

Modifier and Type	Method	Description
private static java.lang.Object	checkResult(java.lang.Object result, QualifiedType<?> type)
protected abstract QualifiedType<?>	elementType(ConfigRegistry config)
(package private) static java.util.Optional<ResultReturner>	findConsumer(java.lang.reflect.Method method)	Inspect a Method for a Consumer to execute for each produced row.
(package private) static ResultReturner	forMethod(java.lang.Class<?> extensionType, java.lang.reflect.Method method)	Inspect a Method for its return type, and choose a ResultReturner subclass that handles any container that might wrap the results.
(package private) static ResultReturner	forOptionalReturn(java.lang.Class<?> extensionType, java.lang.reflect.Method method)	If the return type is void, swallow results.
protected abstract java.lang.Object	mappedResult(ResultIterable<?> iterable, StatementContext ctx)
protected abstract java.lang.Object	reducedResult(java.util.stream.Stream<?> stream, StatementContext ctx)
protected void	warm(ConfigRegistry config)

Methods inherited from class java.lang.Object

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

Constructor Detail

ResultReturner

ResultReturner()

Method Detail

forOptionalReturn

static ResultReturner forOptionalReturn(java.lang.Class<?> extensionType,
                                        java.lang.reflect.Method method)

If the return type is void, swallow results.

Parameters:

extensionType - The extension type to use.

method - The method to use.

Returns:

A ResultReturner

See Also:

if the return type is not void

forMethod

static ResultReturner forMethod(java.lang.Class<?> extensionType,
                                java.lang.reflect.Method method)

Inspect a Method for its return type, and choose a ResultReturner subclass that handles any container that might wrap the results.

Parameters:

extensionType - the type that owns the Method

method - the method whose return type chooses the ResultReturner

Returns:

an instance that takes a ResultIterable and constructs the return value. Never null.

findConsumer

static java.util.Optional<ResultReturner> findConsumer(java.lang.reflect.Method method)

Inspect a Method for a Consumer to execute for each produced row.

Parameters:

method - the method called

Returns:

a ResultReturner that invokes the consumer and does not return a value

mappedResult

protected abstract java.lang.Object mappedResult(ResultIterable<?> iterable,
                                                 StatementContext ctx)

reducedResult

protected abstract java.lang.Object reducedResult(java.util.stream.Stream<?> stream,
                                                  StatementContext ctx)

elementType

protected abstract QualifiedType<?> elementType(ConfigRegistry config)

warm

protected void warm(ConfigRegistry config)

checkResult

private static java.lang.Object checkResult(java.lang.Object result,
                                            QualifiedType<?> type)