Package org.jdbi.v3.core.extension

Class UseAnnotationExtensionHandlerFactory

java.lang.Object

org.jdbi.v3.core.extension.UseAnnotationExtensionHandlerFactory

All Implemented Interfaces:

ExtensionHandlerFactory

final class UseAnnotationExtensionHandlerFactory
extends Object
implements ExtensionHandlerFactory

Processes UseExtensionHandler annotations on methods.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) static final ExtensionHandlerFactory	INSTANCE

Constructor Summary

Constructors

Constructor	Description
UseAnnotationExtensionHandlerFactory()

Method Summary

Modifier and Type	Method	Description
boolean	accepts(Class<?> extensionType, Method method)	Determines whether the factory can create an ExtensionHandler for combination of extension type and method.
Optional<ExtensionHandler>	createExtensionHandler(Class<?> extensionType, Method method)	Returns an ExtensionHandler instance for a extension type and method combination.
private ExtensionHandler	createExtensionHandler(Class<? extends ExtensionHandler> handlerType, Class<?> extensionObjectType, Method method)
(package private) static List<Class<?>>	findAnnotations(Method method)
private static boolean	matchAnnotation(Annotation a)

Methods inherited from class java.lang.Object

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

Field Details

INSTANCE

static final ExtensionHandlerFactory INSTANCE

Constructor Details

UseAnnotationExtensionHandlerFactory

UseAnnotationExtensionHandlerFactory()

Method Details

accepts

public boolean accepts(Class<?> extensionType,
 Method method)

Description copied from interface: ExtensionHandlerFactory

Determines whether the factory can create an ExtensionHandler for combination of extension type and method.

Specified by:

accepts in interface ExtensionHandlerFactory

Parameters:

extensionType - The extension type class

method - A method

Returns:

True if the factory can create an extension handler for extension type and method, false otherwise

matchAnnotation

private static boolean matchAnnotation(Annotation a)

findAnnotations

static List<Class<?>> findAnnotations(Method method)

createExtensionHandler

public Optional<ExtensionHandler> createExtensionHandler(Class<?> extensionType,
 Method method)

Description copied from interface: ExtensionHandlerFactory

Returns an ExtensionHandler instance for a extension type and method combination.

Specified by:

createExtensionHandler in interface ExtensionHandlerFactory

Parameters:

extensionType - The extension type class

method - A method

Returns:

An ExtensionHandler instance wrapped into an Optional. The optional can be empty. This is necessary to retrofit old code that does not have an accept/build code pair but unconditionally tries to build a handler and returns empty if it can not. New code should always return Optional.of(extensionHandler} and never return Optional.empty()

createExtensionHandler

private ExtensionHandler createExtensionHandler(Class<? extends ExtensionHandler> handlerType,
 Class<?> extensionObjectType,
 Method method)