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(ConfigurableBeanFactory factory, ReactiveAdapterRegistry registry)

Method Summary

Modifier and Type	Method	Description
protected AbstractNamedValueArgumentResolver.NamedValueInfo	createNamedValueInfo(MethodParameter parameter)	Create the AbstractNamedValueArgumentResolver.NamedValueInfo object for the given method parameter.
protected void	handleMissingValue(String name, 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, MethodParameter parameter, ServerWebExchange exchange)	Resolve the given parameter type and value name into an argument value.
boolean	supportsParameter(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(ConfigurableBeanFactory factory,
 ReactiveAdapterRegistry registry)

Method Details

supportsParameter

public boolean supportsParameter(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(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,
 MethodParameter parameter,
 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,
 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