Package org.jdbi.v3.core.collector

Class JdbiCollectors

java.lang.Object

org.jdbi.v3.core.collector.JdbiCollectors

All Implemented Interfaces:

JdbiConfig<JdbiCollectors>

public class JdbiCollectors
extends java.lang.Object
implements JdbiConfig<JdbiCollectors>

Registry of collector factories. Contains a set of collector factories, registered by the application.

Field Summary

Fields

Modifier and Type	Field	Description
private java.util.List<CollectorFactory>	factories
private java.util.concurrent.ConcurrentMap<java.lang.reflect.Type,java.util.Optional<CollectorFactory>>	factoryCache

Constructor Summary

Constructors

Modifier	Constructor	Description
	JdbiCollectors()
private	JdbiCollectors(JdbiCollectors that)

Method Summary

Modifier and Type	Method	Description
JdbiCollectors	createCopy()	Returns a copy of this configuration object.
java.util.Optional<java.lang.reflect.Type>	findElementTypeFor(java.lang.reflect.Type containerType)	Returns the element type for the given container type.
private java.util.Optional<CollectorFactory>	findFactoryFor(java.lang.reflect.Type containerType)
java.util.Optional<java.util.stream.Collector<?,?,?>>	findFor(java.lang.reflect.Type containerType)	Obtain a collector for the given type.
JdbiCollectors	register(CollectorFactory factory)	Register a new CollectorFactory.
JdbiCollectors	registerCollector(java.lang.reflect.Type collectionType, java.util.stream.Collector<?,?,?> collector)	Register a new Collector for the given type.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.jdbi.v3.core.config.JdbiConfig

setRegistry

Field Detail

factories

private final java.util.List<CollectorFactory> factories

factoryCache

private java.util.concurrent.ConcurrentMap<java.lang.reflect.Type,java.util.Optional<CollectorFactory>> factoryCache

Constructor Detail

JdbiCollectors

public JdbiCollectors()

JdbiCollectors

private JdbiCollectors(JdbiCollectors that)

Method Detail

register

public JdbiCollectors register(CollectorFactory factory)

Register a new CollectorFactory.

Parameters:

factory - A collector factory

Returns:

this

registerCollector

public JdbiCollectors registerCollector(java.lang.reflect.Type collectionType,
                                        java.util.stream.Collector<?,?,?> collector)

Register a new Collector for the given type.

Parameters:

collectionType - The type that this collector will return

collector - A Collector implementation

Returns:

this

Since:

3.38.0

See Also:

Configurable.registerCollector(CollectorFactory)

findFor

public java.util.Optional<java.util.stream.Collector<?,?,?>> findFor(java.lang.reflect.Type containerType)

Obtain a collector for the given type.

Parameters:

containerType - the container type.

Returns:

a Collector for the given container type, or empty null if no collector is registered for the given type.

findElementTypeFor

public java.util.Optional<java.lang.reflect.Type> findElementTypeFor(java.lang.reflect.Type containerType)

Returns the element type for the given container type.

Parameters:

containerType - the container type.

Returns:

the element type for the given container type, if available.

findFactoryFor

private java.util.Optional<CollectorFactory> findFactoryFor(java.lang.reflect.Type containerType)

createCopy

public JdbiCollectors createCopy()

Description copied from interface: JdbiConfig

Returns a copy of this configuration object. Changes to the copy should not modify the original, and vice-versa.

Specified by:

createCopy in interface JdbiConfig<JdbiCollectors>

Returns:

a copy of this configuration object.