MultiResourceItemReaderBuilder currently allows setting resources via the resources(Resource[]) method:

return new MultiResourceItemReaderBuilder<User>()
    .delegate(fileReader)
    .resources(new Resource[] { r1, r2, r3, r4 })
    .name("multiFileReader")
    .build();

In many cases, multiple files need to be specified using a pattern.
While this can be achieved manually using the PathMatchingResourcePatternResolver class:

var resourcePatternResolver = new PathMatchingResourcePatternResolver();
Resource[] resources = resourcePatternResolver.getResources("file:/home/logs/*.csv");

return new MultiResourceItemReaderBuilder<User>()
    .delegate(fileReader)
    .resources(resources)
    .name("multiFileReader")
    .build();

It would be more convenient if MultiResourceItemReaderBuilder itself could directly accept a resource pattern.
In older XML-based configurations in Spring Framework , resource arrays defined with patterns were automatically resolved by PathMatchingResourcePatternResolver.
Given that background, it feels natural to provide a similar capability in the builder API.

I’d like to propose adding a method like MultiResourceItemReaderBuilder.resourcesPattern(String) to support this use case:

return new MultiResourceItemReaderBuilder<User>()
    .delegate(fileReader)
    .filesPattern("/home/logs/*.csv")
    .name("multiFileReader")
    .build();

Since this would be a relatively simple enhancement, I’d be happy to submit a Pull Request myself if the team agrees with the need for it.