Pageablehandlermethodargumentresolvercustomizer

pageablehandlermethodargumentresolvercustomizer is an interface in Spring Framework that allows customization of the behavior of the PageableHandlerMethodArgumentResolver class.

The PageableHandlerMethodArgumentResolver class is responsible for resolving method arguments of type Pageable in Spring MVC controllers. It extracts the paging and sorting information from the incoming HTTP request and constructs a Pageable object.

The pageablehandlermethodargumentresolvercustomizer interface provides methods to customize the behavior of the PageableHandlerMethodArgumentResolver. By implementing this interface, you can add additional functionality or modify the existing behavior of the resolver.

Here’s an example of how to customize the PageableHandlerMethodArgumentResolver using pageablehandlermethodargumentresolvercustomizer.

import org.springframework.context.annotation.Configuration;
import org.springframework.data.web.PageableHandlerMethodArgumentResolverCustomizer;
import org.springframework.web.method.support.HandlerMethodArgumentResolver;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

@Configuration
public class MyWebMvcConfiguration implements WebMvcConfigurer {

    @Override
    public void addArgumentResolvers(List resolvers) {
        PageableHandlerMethodArgumentResolverCustomizer customizer = new PageableHandlerMethodArgumentResolverCustomizer() {
            @Override
            public void customize(PageableHandlerMethodArgumentResolver resolver) {
                resolver.setOneIndexedParameters(true); // Customize the resolver to use 1-index instead of 0-index for page parameters
            }
        };
        customizer.customize(new PageableHandlerMethodArgumentResolver());
        resolvers.add(customizer);
    }
}
  

In this example, we create a custom MyWebMvcConfiguration class that implements the WebMvcConfigurer interface. We override the addArgumentResolvers method to add a custom PageableHandlerMethodArgumentResolverCustomizer object to the list of argument resolvers.

Inside the customizer, we call the setOneIndexedParameters method of the PageableHandlerMethodArgumentResolver to customize it to use 1-index instead of the default 0-index for page parameters. This means that the first page will be 1 instead of 0 in the paging request.

Finally, we add the customizer object to the list of resolvers.