Package io.micronaut.http.bind.binders

Class RequestAttributeAnnotationBinder<T>

java.lang.Object

io.micronaut.core.bind.annotation.AbstractArgumentBinder<T>

io.micronaut.http.bind.binders.RequestAttributeAnnotationBinder<T>

Type Parameters:

T - A type

All Implemented Interfaces:

AnnotatedArgumentBinder<RequestAttribute,T,HttpRequest<?>>, ArgumentBinder<T,HttpRequest<?>>, AnnotatedRequestArgumentBinder<RequestAttribute,T>, PostponedRequestArgumentBinder<T>, RequestArgumentBinder<T>

public class RequestAttributeAnnotationBinder<T>
extends AbstractArgumentBinder<T>
implements AnnotatedRequestArgumentBinder<RequestAttribute,T>, PostponedRequestArgumentBinder<T>

An AnnotatedArgumentBinder implementation that uses the RequestAttribute annotation to trigger binding from an HTTP request attribute. NOTE: The binder is annotating as postponed to allow injecting attributes added by filters.

Author:

Ahmed Lafta

See Also:

• HttpAttributes

Nested Class Summary

Nested classes/interfaces inherited from interface io.micronaut.core.bind.ArgumentBinder

ArgumentBinder.BindingResult<T>

Field Summary

Fields inherited from class io.micronaut.core.bind.annotation.AbstractArgumentBinder

conversionService

Constructor Summary

Constructors

Constructor	Description
RequestAttributeAnnotationBinder(ConversionService conversionService)

Method Summary

Modifier and Type	Method	Description
ArgumentBinder.BindingResult<T>	bind(ArgumentConversionContext<T> argument, HttpRequest<?> source)	Bind the given argument from the given source.
Class<RequestAttribute>	getAnnotationType()
protected String	getFallbackFormat(Argument<?> argument)

Methods inherited from class io.micronaut.core.bind.annotation.AbstractArgumentBinder

doBind, doBind, doConvert, doConvert, doResolve

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.micronaut.http.bind.binders.PostponedRequestArgumentBinder

bindPostponed

Constructor Details

RequestAttributeAnnotationBinder

public RequestAttributeAnnotationBinder(ConversionService conversionService)

Parameters:

conversionService - conversionService

Method Details

getAnnotationType

public Class<RequestAttribute> getAnnotationType()

Specified by:

getAnnotationType in interface AnnotatedArgumentBinder<RequestAttribute,T,HttpRequest<?>>

Returns:

The annotation type.

bind

public ArgumentBinder.BindingResult<T> bind(ArgumentConversionContext<T> argument,
 HttpRequest<?> source)

Description copied from interface: ArgumentBinder

Bind the given argument from the given source.

Specified by:

bind in interface ArgumentBinder<T,HttpRequest<?>>

Parameters:

argument - The ArgumentConversionContext

source - The source

Returns:

An Optional of the value. If no binding was possible Optional.empty()

getFallbackFormat

protected String getFallbackFormat(Argument<?> argument)

Overrides:

getFallbackFormat in class AbstractArgumentBinder<T>

Parameters:

argument - The argument

Returns:

The fallback format