Package org.jdbi.v3.core.collector

Class MapCollectorFactory

java.lang.Object

org.jdbi.v3.core.collector.MapCollectorFactory

All Implemented Interfaces:

CollectorFactory

class MapCollectorFactory
extends java.lang.Object
implements CollectorFactory

Field Summary

Fields

Modifier and Type	Field	Description
private java.util.IdentityHashMap<java.lang.Class<?>,java.util.stream.Collector<?,?,?>>	collectors

Constructor Summary

Constructors

Constructor	Description
MapCollectorFactory()

Method Summary

Modifier and Type	Method	Description
boolean	accepts(java.lang.reflect.Type containerType)	Accept a Type as a collector.
java.util.stream.Collector<?,?,?>	build(java.lang.reflect.Type containerType)	Creates a collector for a given container type.
java.util.Optional<java.lang.reflect.Type>	elementType(java.lang.reflect.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 Detail

collectors

private final java.util.IdentityHashMap<java.lang.Class<?>,java.util.stream.Collector<?,?,?>> collectors

Constructor Detail

MapCollectorFactory

MapCollectorFactory()

Method Detail

accepts

public boolean accepts(java.lang.reflect.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 java.util.Optional<java.lang.reflect.Type> elementType(java.lang.reflect.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 java.util.stream.Collector<?,?,?> build(java.lang.reflect.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)