Page's content type isn't correct

[FULaBUla]

@Query("select .....")
Page<LinkedHashMap<String, Object> query(Pageable pageable);

I wish spring-data-jpa return Page<LinkedHashMap<String, Object>> but you return Page<Object[]>. The content type isn't LinkedHashMap<String, Object>, it is Object[].

[christophstrobl]

If you would like us to spend some time helping you to diagnose the problem, please spend some time describing it. Right now, we struggle to understand what you want to achieve.

[FULaBUla]

If you would like us to spend some time helping you to diagnose the problem, please spend some time describing it. Right now, we struggle to understand what you want to achieve.

According to the method I defined, the return value type I should get from Page.getContent() is LinkedHashMap<String, Object>. But actually, I get Object[] from Page.getContent().

[mp911de]

We do not support Map as query method return type, see https://docs.spring.io/spring-data/data-jpa/reference/repositories/query-return-types-reference.html.

[FULaBUla]

We do not support Map as query method return type, see https://docs.spring.io/spring-data/data-jpa/reference/repositories/query-return-types-reference.html.

@mp911de The documentation doesn't specify what type of T is available in Page<T>. And when I use Page<List<Object>>, The type i get from Page.getContent() is also Object[] instead of List.

[mp911de]

It does:

T A unique entity.

A Map is not an entity.

[FULaBUla]

It does:

T A unique entity.

A Map is not an entity.

I know, but when I use Page<List<Object>>, The type i get from Page.getContent() is also Object[] instead of List.

And I remember that in the previous version, spring-data-jpa could use map, where the key value was the name of the column, and the value was the corresponding value of the column.

@mp911de