Package org.springframework.web.reactive.result.method.annotation

Class SessionAttributeMethodArgumentResolver

java.lang.Object

org.springframework.web.reactive.result.method.HandlerMethodArgumentResolverSupport

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

org.springframework.web.reactive.result.method.annotation.SessionAttributeMethodArgumentResolver

All Implemented Interfaces:

HandlerMethodArgumentResolver

public class SessionAttributeMethodArgumentResolver
extends AbstractNamedValueArgumentResolver

Resolves method arguments annotated with an @SessionAttribute.

Since:

5.0

Author:

Rossen Stoyanchev

See Also:

• RequestAttributeMethodArgumentResolver

Nested Class Summary

Nested classes/interfaces inherited from class org.springframework.web.reactive.result.method.annotation.AbstractNamedValueArgumentResolver

AbstractNamedValueArgumentResolver.NamedValueInfo

Field Summary

Fields inherited from class org.springframework.web.reactive.result.method.HandlerMethodArgumentResolverSupport

logger

Constructor Summary

Constructors

Constructor	Description
SessionAttributeMethodArgumentResolver(org.springframework.beans.factory.config.ConfigurableBeanFactory factory, org.springframework.core.ReactiveAdapterRegistry registry)

Method Summary

Modifier and Type	Method	Description
protected AbstractNamedValueArgumentResolver.NamedValueInfo	createNamedValueInfo(org.springframework.core.MethodParameter parameter)	Create the AbstractNamedValueArgumentResolver.NamedValueInfo object for the given method parameter.
protected void	handleMissingValue(String name, org.springframework.core.MethodParameter parameter)	Invoked when a named value is required, but AbstractNamedValueArgumentResolver.resolveName(String, MethodParameter, ServerWebExchange) returned null and there is no default value.
protected reactor.core.publisher.Mono<Object>	resolveName(String name, org.springframework.core.MethodParameter parameter, org.springframework.web.server.ServerWebExchange exchange)	Resolve the given parameter type and value name into an argument value.
boolean	supportsParameter(org.springframework.core.MethodParameter parameter)	Whether this resolver supports the given method parameter.

Methods inherited from class org.springframework.web.reactive.result.method.annotation.AbstractNamedValueArgumentResolver

handleMissingValue, handleResolvedValue, resolveArgument

Methods inherited from class org.springframework.web.reactive.result.method.HandlerMethodArgumentResolverSupport

checkAnnotatedParamNoReactiveWrapper, checkParameterType, checkParameterTypeNoReactiveWrapper, getAdapterRegistry

Methods inherited from class java.lang.Object

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

Constructor Details

SessionAttributeMethodArgumentResolver

public SessionAttributeMethodArgumentResolver(org.springframework.beans.factory.config.ConfigurableBeanFactory factory,
 org.springframework.core.ReactiveAdapterRegistry registry)

Method Details

supportsParameter

public boolean supportsParameter(org.springframework.core.MethodParameter parameter)

Description copied from interface: HandlerMethodArgumentResolver

Whether this resolver supports the given method parameter.

Parameters:

parameter - the method parameter

createNamedValueInfo

protected AbstractNamedValueArgumentResolver.NamedValueInfo createNamedValueInfo(org.springframework.core.MethodParameter parameter)

Description copied from class: AbstractNamedValueArgumentResolver

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

Specified by:

createNamedValueInfo in class AbstractNamedValueArgumentResolver

Parameters:

parameter - the method parameter

Returns:

the named value information

resolveName

protected reactor.core.publisher.Mono<Object> resolveName(String name,
 org.springframework.core.MethodParameter parameter,
 org.springframework.web.server.ServerWebExchange exchange)

Description copied from class: AbstractNamedValueArgumentResolver

Resolve the given parameter type and value name into an argument value.

Specified by:

resolveName in class AbstractNamedValueArgumentResolver

Parameters:

name - the name of the value being resolved

parameter - the method parameter to resolve to an argument value (pre-nested in case of a Optional declaration)

exchange - the current exchange

Returns:

the resolved argument (may be empty Mono)

handleMissingValue

protected void handleMissingValue(String name,
 org.springframework.core.MethodParameter parameter)

Description copied from class: AbstractNamedValueArgumentResolver

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

Overrides:

handleMissingValue in class AbstractNamedValueArgumentResolver

Parameters:

name - the name for the value

parameter - the method parameter