[hibernate-dev] Are arrays of non-basic elements supported?

[Vlad Mihalcea]

I fixed it with the following commit:

https://github.com/hibernate/hibernate-orm/commit/871722dc08ec131cd1f5238e1b48df8db2dcc402

Let me know if it's more clear now.

Vlad

On Wed, Jul 26, 2017 at 7:32 PM, Gail Badner <gbadner at redhat.com> wrote:

> OK, I'll make sure Hibernate also treats an empty array element as
>  equivalent to null as well.
>
> Vlad, thanks for correcting the documentation.
>
> On Wed, Jul 26, 2017 at 7:38 AM, Vlad Mihalcea <mihalcea.vlad at gmail.com>
> wrote:
>
>> The docs says:
>>
>> When it comes to arrays, there is quite a difference between Java arrays
>> and relational database array types (e.g. VARRAY, ARRAY). First, not all
>> database systems implement the SQL-99 ARRAY type, and, for this reason,
>> Hibernate doesn’t support native database array types. Second, Java arrays
>> are relevant for basic types only since storing multiple embeddables or
>> entities should always be done using the Java Collection API.
>>
>> I guess the "Second, Java arrays ..." part is indeed a little bit
>> misleading.
>>
>> I created the following issue:
>>
>> https://hibernate.atlassian.net/browse/HHH-11891
>>
>> Is it a problem if I link the docs to my blog post about how to support
>> arrays of basic types?
>>
>> https://vladmihalcea.com/2017/06/21/how-to-map-java-and-sql-
>> arrays-with-jpa-and-hibernate/
>>
>> Thanks,
>> Vlad
>>
>> On Wed, Jul 26, 2017 at 4:04 PM, Steve Ebersole <steve at hibernate.org>
>> wrote:
>>
>>> That doc section is wrong.  Vlad - can you fix that
>>>
>>> We do in fact support arrays of all types including embeddables and
>>> entities.  However, we have always recommended to not use arrays for
>>> entities as arrays cannot be lazy loaded (not even using bytecode
>>> enhancement).
>>>
>>> On Mon, Jul 24, 2017 at 6:29 PM Gail Badner <gbadner at redhat.com> wrote:
>>>
>>> > Documentation makes it sound like only arrays of basic types are
>>> supported.
>>> > [1]
>>> >
>>> > I see a test using an array of entities, but I don't see one for an
>>> array
>>> > of embeddables. [2]
>>> >
>>> > Regards,
>>> > Gail
>>> >
>>> > [1]
>>> >
>>> > http://docs.jboss.org/hibernate/orm/5.2/userguide/html_singl
>>> e/Hibernate_User_Guide.html#collections-array
>>> > [2]
>>> >
>>> > https://github.com/hibernate/hibernate-orm/blob/master/hiber
>>> nate-core/src/test/java/org/hibernate/test/annotations/array
>>> /Contest.java#L40-L42
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>>> >
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>>
>>
>