Package in.co.akshitbansal.springwebquery.resolver

Class WebQueryDtoAwarePageableArgumentResolver

java.lang.Object

in.co.akshitbansal.springwebquery.resolver.WebQueryDtoAwarePageableArgumentResolver

All Implemented Interfaces:

org.springframework.web.method.support.HandlerMethodArgumentResolver

public class WebQueryDtoAwarePageableArgumentResolver
extends Object
implements org.springframework.web.method.support.HandlerMethodArgumentResolver

DTO-based resolver for Pageable parameters handled via method-level WebQuery.

This resolver validates sort selectors against a DTO contract and maps those selectors to entity paths (using MapsTo where provided) before returning the final pageable.

Constructor Summary

Constructors

Constructor	Description
WebQueryDtoAwarePageableArgumentResolver()

Method Summary

Modifier and Type	Method	Description
@Nullable Object	resolveArgument(org.springframework.core.MethodParameter parameter, @Nullable org.springframework.web.method.support.ModelAndViewContainer mavContainer, org.springframework.web.context.request.NativeWebRequest webRequest, @Nullable org.springframework.web.bind.support.WebDataBinderFactory binderFactory)	Resolves and validates a Pageable argument with DTO-based sorting rules.
boolean	supportsParameter(org.springframework.core.MethodParameter parameter)	Determines whether this resolver should handle the given parameter.

Methods inherited from class java.lang.Object

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

Constructor Details

WebQueryDtoAwarePageableArgumentResolver

public WebQueryDtoAwarePageableArgumentResolver()

Method Details

supportsParameter

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

Determines whether this resolver should handle the given parameter.

Specified by:

supportsParameter in interface org.springframework.web.method.support.HandlerMethodArgumentResolver

Parameters:

parameter - method parameter under inspection

Returns:

true when parameter is Pageable with method-level WebQuery and a configured DTO class

resolveArgument

public @Nullable Object resolveArgument(org.springframework.core.MethodParameter parameter,
 @Nullable org.springframework.web.method.support.ModelAndViewContainer mavContainer,
 org.springframework.web.context.request.NativeWebRequest webRequest,
 @Nullable org.springframework.web.bind.support.WebDataBinderFactory binderFactory)
                                 throws Exception

Resolves and validates a Pageable argument with DTO-based sorting rules.

Specified by:

resolveArgument in interface org.springframework.web.method.support.HandlerMethodArgumentResolver

Parameters:

parameter - controller method parameter being resolved

mavContainer - current MVC container

webRequest - current request

binderFactory - binder factory

Returns:

validated pageable with DTO selectors translated to entity paths

Throws:

Exception - when resolution fails