Top Description Constructors Methods
org.springframework.web.reactive.result.method.annotation

public Class RequestAttributeMethodArgumentResolver

extends AbstractNamedValueSyncArgumentResolver
Class Inheritance
Imports
reactor.core.publisher.Mono, org.springframework.beans.factory.config.ConfigurableBeanFactory, org.springframework.core.MethodParameter, .ReactiveAdapter, .ReactiveAdapterRegistry, org.springframework.lang.Nullable, org.springframework.util.Assert, org.springframework.web.bind.annotation.RequestAttribute, .ValueConstants, org.springframework.web.server.MissingRequestValueException, .ServerWebExchange
Resolves method arguments annotated with an @RequestAttribute.
Author
Rossen Stoyanchev
Since
5.0
See Also
SessionAttributeMethodArgumentResolver

Constructor Summary

AccessConstructor and Description
public
RequestAttributeMethodArgumentResolver(ConfigurableBeanFactory
a bean factory to use for resolving ${...} placeholder and #{...} SpEL expressions in default values; or null if default values are not expected to have expressions
factory, ReactiveAdapterRegistry
for checking reactive type wrappers
registry)

Create a new RequestAttributeMethodArgumentResolver instance.

Method Summary

Modifier and TypeMethod and Description
protected AbstractNamedValueArgumentResolver.NamedValueInfo
createNamedValueInfo(MethodParameter
the method parameter
parameter)

Implements abstract org.springframework.web.reactive.result.method.annotation.AbstractNamedValueArgumentResolver.createNamedValueInfo.

Create the NamedValueInfo object for the given method parameter.

protected void
handleMissingValue(String
the name for the value
name, MethodParameter
the method parameter
parameter)

Overrides org.springframework.web.reactive.result.method.annotation.AbstractNamedValueArgumentResolver.handleMissingValue.

Invoked when a named value is required, but resolveName(String, MethodParameter, ServerWebExchange) returned null and there is no default value.

protected Object
resolveNamedValue(String name, MethodParameter parameter, ServerWebExchange exchange)

Implements abstract org.springframework.web.reactive.result.method.annotation.AbstractNamedValueSyncArgumentResolver.resolveNamedValue.

Actually resolve the value synchronously.

public boolean
supportsParameter(MethodParameter
the method parameter
param)

Implements org.springframework.web.reactive.result.method.HandlerMethodArgumentResolver.supportsParameter.

Whether this resolver supports the given method parameter.

Inherited from org.springframework.web.reactive.result.method.annotation.AbstractNamedValueSyncArgumentResolver:
resolveArgumentresolveArgumentValueresolveName

Constructor Detail

RequestAttributeMethodArgumentResolverback to summary
public RequestAttributeMethodArgumentResolver(ConfigurableBeanFactory factory, ReactiveAdapterRegistry registry)

Create a new RequestAttributeMethodArgumentResolver instance.

Parameters
factory:ConfigurableBeanFactory

a bean factory to use for resolving ${...} placeholder and #{...} SpEL expressions in default values; or null if default values are not expected to have expressions

registry:ReactiveAdapterRegistry

for checking reactive type wrappers

Method Detail

createNamedValueInfoback to summary
protected AbstractNamedValueArgumentResolver.NamedValueInfo createNamedValueInfo(MethodParameter parameter)

Implements abstract org.springframework.web.reactive.result.method.annotation.AbstractNamedValueArgumentResolver.createNamedValueInfo.

Doc from org.springframework.web.reactive.result.method.annotation.AbstractNamedValueArgumentResolver.createNamedValueInfo.

Create the NamedValueInfo object for the given method parameter. Implementations typically retrieve the method annotation by means of MethodParameter#getParameterAnnotation(Class).

Parameters
parameter:MethodParameter

the method parameter

Returns:AbstractNamedValueArgumentResolver.NamedValueInfo

the named value information

Annotations
@Override
handleMissingValueback to summary
protected void handleMissingValue(String name, MethodParameter parameter)

Overrides org.springframework.web.reactive.result.method.annotation.AbstractNamedValueArgumentResolver.handleMissingValue.

Doc from org.springframework.web.reactive.result.method.annotation.AbstractNamedValueArgumentResolver.handleMissingValue.

Invoked when a named value is required, but resolveName(String, MethodParameter, ServerWebExchange) returned null and there is no default value. Subclasses typically throw an exception in this case.

Parameters
name:String

the name for the value

parameter:MethodParameter

the method parameter

Annotations
@Override
resolveNamedValueback to summary
protected Object resolveNamedValue(String name, MethodParameter parameter, ServerWebExchange exchange)

Implements abstract org.springframework.web.reactive.result.method.annotation.AbstractNamedValueSyncArgumentResolver.resolveNamedValue.

Doc from org.springframework.web.reactive.result.method.annotation.AbstractNamedValueSyncArgumentResolver.resolveNamedValue.

Actually resolve the value synchronously.

Annotations
@Override
supportsParameterback to summary
public boolean supportsParameter(MethodParameter param)

Implements org.springframework.web.reactive.result.method.HandlerMethodArgumentResolver.supportsParameter.

Doc from org.springframework.web.reactive.result.method.HandlerMethodArgumentResolver.supportsParameter.

Whether this resolver supports the given method parameter.

Parameters
param:MethodParameter

the method parameter

Annotations
@Override