Spring paging

https://reflectoring.io/spring-boot-paging/ ; "Paging is the act of loading one page of items after another from a database, in order to preserve resources. This is what most of this article is about. Pagination is the UI element that provides a sequence of page numbers to let the user choose which page to load next."

https://www.programmersought.com/article/1615785965/ : "Spring annotates paging by @PageableDefault of springframework.data" - can override https://www.javaer101.com/en/article/1361705.html

https://docs.spring.io/spring-data/commons/docs/current/api/org/springframework/data/web/PagedResourcesAssembler.html

few tweaks to make it work with the spring

import org.springframework.data.web.PageableHandlerMethodArgumentResolver; 

import org.springframework.hateoas.client.LinkDiscoverer; 

import org.springframework.hateoas.client.LinkDiscoverers; 

import org.springframework.hateoas.mediatype.collectionjson.CollectionJsonLinkDiscoverer; 

import org.springframework.plugin.core.SimplePluginRegistry; 

import org.springframework.web.method.support.HandlerMethodArgumentResolver; 

// https://stackoverflow.com/questions/52355490/no-primary-or-default-constructor-found-for-interface-org-springframework-data-d

 

@Configuration 

@EnableSwagger2  

MySwaggerConfig extends WebMvcConfigurationSupport { 

      @Override public void addArgumentResolvers(List argumentResolvers) {

             argumentResolvers.add(new PageableHandlerMethodArgumentResolver()); 

 } 

//https://stackoverflow.com/questions/58431876/why-hateoas-starts-creating-issue-for-spring-boot-version-2-2-x-during-startu 

 @Bean public LinkDiscoverers discoverers() { 

    List plugins = new ArrayList<>(); 

    plugins.add(new CollectionJsonLinkDiscoverer()); 

    return new LinkDiscoverers(SimplePluginRegistry.create(plugins)); 

 }

The pageable default page and size

https://medium.com/@rasheedamir/java-spring-default-page-default-sort-cab2f410f8b0

page -

The default-pagenumber the injected Pageable should get if no corresponding parameter defined in request (default is 0). 

size -

The default-size the injected Pageable should get if no corresponding parameter defined in request (default is 10). 

sort -

The properties to sort by by default. 

value -

Alias for size() 

https://docs.spring.io/spring-data/commons/docs/current/api/org/springframework/data/web/PageableDefault.html

https://docs.spring.io/spring-data/commons/docs/current/api/org/springframework/data/domain/Pageable.html

adding pagination with mongo

https://medium.com/@AADota/spring-mongo-template-pagination-92fa93c50d5c

https://www.baeldung.com/spring-data-web-support

pass in size,page,sort...

?page=0&size=2

?sort=name&sort=email,asc