Package org.jdbi.v3.core.collector

Class MapCollectorFactory

java.lang.Object

org.jdbi.v3.core.collector.MapCollectorFactory

All Implemented Interfaces:

CollectorFactory

class MapCollectorFactory
extends Object
implements CollectorFactory

Field Summary

Fields

Modifier and Type	Field	Description
private final IdentityHashMap<Class<?>,Collector<?,?,?>>	collectors

Constructor Summary

Constructors

Constructor	Description
MapCollectorFactory()

Method Summary

Modifier and Type	Method	Description
boolean	accepts(Type containerType)	Accept a Type as a collector.
Collector<?,?,?>	build(Type containerType)	Creates a collector for a given container type.
Optional<Type>	elementType(Type containerType)	Returns the element type for a given container type.

Methods inherited from class java.lang.Object

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

Field Details

collectors

private final IdentityHashMap<Class<?>,Collector<?,?,?>> collectors

Constructor Details

MapCollectorFactory

MapCollectorFactory()

Method Details

accepts

public boolean accepts(Type containerType)

Description copied from interface: CollectorFactory

Accept a Type as a collector.

Specified by:

accepts in interface CollectorFactory

Parameters:

containerType - the container type.

Returns:

whether this factory can produce a collector for the given container type.

elementType

public Optional<Type> elementType(Type containerType)

Description copied from interface: CollectorFactory

Returns the element type for a given container type.

Specified by:

elementType in interface CollectorFactory

Parameters:

containerType - the container type.

Returns:

the container element type if it can be discovered through reflection; empty otherwise.

See Also:

• StatementContext.findElementTypeFor(Type)

build

public Collector<?,?,?> build(Type containerType)

Description copied from interface: CollectorFactory

Creates a collector for a given container type.

Specified by:

build in interface CollectorFactory

Parameters:

containerType - the container type.

Returns:

a Collector for the given container type.

See Also:

• StatementContext.findCollectorFor(Type)
• JdbiCollectors.findFor(Type)