Spring-Data-Rest paging of attributes

Question

I have two resources defined using a PagingAndSortingRepository:

galleries/{id}
images/{id}

Paging in general for both resources is available by the used repository type.

The gallery itself contains a list of images

@Entity
@Table(name = "Gallery")
public class Gallery extends AbstractEntity {

    private String name;

    @OneToMany(fetch = FetchType.EAGER)
    private List<Image> images;
    ...
}

I can now access the images of a gallery via

galleries/1/images

Is it possible to enable paging also for these sub-lists? or what is the REST style for handling those large lists.

thank you in advance, Guido

score 1 · Accepted Answer · answered Jan 10 '14 at 19:29

1

If you make a findByGalleryId query on the images repository, it should return you the results paged. However, I don't understand why the sub-list you're querying isn't paged. Are you sure it has enough records for paging?

answered Jan 10 '14 at 19:29

Andres

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Hi Andres, thanks for your answer. The findByGalleryId is not possible, as the image does not have a gallery id. The link is done by a link table. That's a semantic issue. An image does not necessarily belong to a gallery. I will test to increase the number of images, but I would expect to have a page entry with a totalCount value in any case in order to not need a different handling in the frontend for both cases. – Guido Jan 12 '14 at 12:14

score 0 · Answer 2 · edited May 23 '17 at 10:31

0

Related to my question here: Spring Data Rest Pageable Child Collection

So far I've been unable to get the collections inside of an object to page the way you describe. I ended up basically doing as Andres suggested.

You can implement a finder on images to return a page and then use @RestResource(exported=false) to hide the link from the gallery side.

edited May 23 '17 at 10:31

Community

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answered Feb 02 '14 at 02:34

Ethan Anderson

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Spring-Data-Rest paging of attributes

2 Answers2