How get NumberExpression<Integer> result using Spring JPA Data?

Question

I used Spring JPA Data + queryDSL.

It's great solution. but I have one question now.

if I want to execute this query.

select sum(point) from users where userLevel = 2;

I have know how execute using queryDSL fro this query. But I don't know how execute this query using queryDSL and QueryDslPredicateExecutor.

How I execute this query using QueryDslPredicateExecutor? Is it imposible now? Either, there is another way to execute this query using Spring JPA another interfaces?

Timo Westkämper · Accepted Answer · 2013-04-01 17:31:16Z

1

You need to use a Querydsl queries for that in Spring Data. QueryDslPredicateExecutor is the right choice if you want to return instances of the main variable type.

QueryDslRepositorySupport can be used as the superclass if you need full Querydsl power in a Spring Data repository.

answered Apr 1, 2013 at 17:31

Timo Westkämper

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