I have a question for naming. fetchXXX VS getXXX V...

# codereview

[chanjungskim]

I have a question for naming. fetchXXX VS getXXX VS retrieveXXX, when you get from API or Local DB. what do you use or when do you use them? any differences?

[Pablichjenkov]

getX when there is direct access to the resource in the same thread, and getX returns immediately.
retrieve/fetch/resolve when the function returns a result but the result is not returned immediately in the thread. Either because of suspend, or asynch coroutine.
request when the function doesn't return a result, and uses some callback mechanism to do so later on.

[Adam S]

the Spring JPA repository naming conventions will have a strong influence on a lot of Spring based projects, as well as developers who used JPA repos (even if they don’t any more)

https://docs.spring.io/spring-data/jpa/docs/current/reference/html/#appendix.query.method.subject

I half-remember that a method named findXXX() would return a nullable response, while getXXX() would return non-null, but throw an exception if it didn’t exist. It was nice having a standardised method naming structure.

[czuckie]

getXXX suggests to me the operation would be cheap. request|fetchXXX makes me think that a network request would be involved. query|retrieveXXX makes me think db or file based operation.

No huge reason other than years of reinforcement.

[statmark56]

@Pablichjenkov your statement looks solid 👍 Any other refs that support it?

[Pablichjenkov]

Not that I am aware of. In my case it is just the day to day. Perhaps someone has written about it but I don't know.