org.jdbi.v3.core.collector

Interface CollectorFactory

All Known Implementing Classes:

BuiltInCollectorFactory

public interface CollectorFactory

Factory for building Collectors to assemble containers of elements. The collector produces only objects of the type of the container elements.

Method Summary

Modifier and Type	Method and Description
boolean	accepts(Type containerType)
Collector<?,?,?>	build(Type containerType)
Optional<Type>	elementType(Type containerType)

Method Detail

accepts

boolean accepts(Type containerType)

Parameters:

containerType - the container type

Returns:

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

elementType

Optional<Type> elementType(Type containerType)

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

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

Parameters:

containerType - the type of the container

Returns:

a Collector for the given container type.

See Also:

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