spring - Getting only start of articles out of a database -

in spring boot web mvc application, have page overview of articles, , 1 article details.

the article's content should limited length inside overview, should normal length in article details page.

where best place "cut off" rest of article? somehow in sql query? in @service class retrieves overview? inside view? i'd in view, because feel should contain view logic.

i use @repository spring jpa data retrieval. use thymeleaf frontend pages.