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)
RequestAttributeAnnotationBinder(ConversionService conversionService, Argument<T> argument)

Method Summary

Modifier and Type	Method	Description
ArgumentBinder.BindingResult<T>	bind(ArgumentConversionContext<T> argument, HttpRequest<?> source)	Bind the given argument from the given source.
RequestArgumentBinder<T>	createSpecific(Argument<T> argument)	Create a specific binder.
Class<RequestAttribute>	getAnnotationType()
protected String	getFallbackFormat(Argument<?> argument)
protected String	getParameterName(Argument<T> argument)	Find the parameter name.

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

doBind, doBind, doBind, doBind, doConvert, doConvert, doResolve, doResolve, resolvedParameterName

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

RequestAttributeAnnotationBinder

public RequestAttributeAnnotationBinder(ConversionService conversionService,
 Argument<T> argument)

Parameters:

conversionService - conversionService

argument - argument

Method Details

createSpecific

public RequestArgumentBinder<T> createSpecific(Argument<T> argument)

Description copied from interface: RequestArgumentBinder

Create a specific binder.

Specified by:

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

Specified by:

createSpecific in interface RequestArgumentBinder<T>

Parameters:

argument - The bound argument

Returns:

The specific binder

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()

getParameterName

protected String getParameterName(Argument<T> argument)

Description copied from class: AbstractArgumentBinder

Find the parameter name.

Overrides:

getParameterName in class AbstractArgumentBinder<T>

Parameters:

argument - The argument

Returns:

The name

getFallbackFormat

protected String getFallbackFormat(Argument<?> argument)

Overrides:

getFallbackFormat in class AbstractArgumentBinder<T>

Parameters:

argument - The argument

Returns:

The fallback format