XSDs annotations getting lost during creating/updating a CDT

RE: XSDs annotations getting lost during creating/updating a CDT

chandu — Fri, 02 Dec 2016 14:16:21 GMT

Hi sandroo, I too tried that, it seems @table annotation doesn't have Indexes attribute that resulted me giving the same error. I clearly see in the URL
forum.appian.com/.../Custom_Data_Types_from_XSD.html
@Column (with additional attributes: uniqueKey and index).
So Index attribute should work for @column annotation. I can't able figure out why its not working for my scenario also.

Will it not be possible to create Index from the DB side?

RE: XSDs annotations getting lost during creating/updating a CDT

Sandro Oberdorfer — Fri, 02 Dec 2016 13:12:35 GMT

Hey @aloks176, I quite simply want to optimize my database queries. The datamodel has a couple of smaller CDTs and running all those queries without indexing hurts performance. Plus I wanted a solution that is ideally automatically deployed with the application instead of having to do that extra.

Thanks for all your help so far guys!

RE: XSDs annotations getting lost during creating/updating a CDT

aloks0189 — Fri, 02 Dec 2016 10:04:11 GMT

As per my Knowledge, there are only four Elements of @Table Annotation, those are

catalog, name, schema, uniqueConstraints

RE: XSDs annotations getting lost during creating/updating a CDT

aloks0189 — Fri, 02 Dec 2016 10:02:44 GMT

@sandroo i don't think, there is any Element named as indexes for @Table Annotation, that might be causing you the issue, if you can explain your requirement, then only we can come to some Resolution for your requirement

RE: XSDs annotations getting lost during creating/updating a CDT

Sandro Oberdorfer — Thu, 01 Dec 2016 19:08:17 GMT

Thanks for your answers guys!
I tried the idea of @chandrasekharg, like this:

<xsd:annotation>
<xsd:appinfo source="appian.jpa">
@Table(indexes={
@Index(name="test_index", columnList="leadId")
}
)
</xsd:appinfo>
</xsd:annotation>

The import of this modfied XSD resulted in the following error:

A type mapping annotation is invalid: No efeature indexes for eclass Table (APNX-2-4055-000)

RE: XSDs annotations getting lost during creating/updating a CDT

Krishna Chaitanya — Thu, 01 Dec 2016 08:29:14 GMT

hi @ sandroo
<xsd:element name="leadId" nillable="true" type="xsd:int">
<xsd:annotation>
<xsd:appinfo source="appian.jpa">
@Column(name="leadId",columnDefinition="INT(3)")
</xsd:appinfo>
</xsd:annotation>
</xsd:element>

RE: XSDs annotations getting lost during creating/updating a CDT

aloks0189 — Thu, 01 Dec 2016 03:56:37 GMT

However @Index Annotation is supported in JPA 2.1, but I didn't find @Index Annotation in Appian documentation as mentioned by @Chaitanya above, so try to explain your requirement so that Appian practitioner can help you on this

RE: XSDs annotations getting lost during creating/updating a CDT

aloks0189 — Thu, 01 Dec 2016 03:47:50 GMT

@sandroo as per my understanding Appian do not have support for @Index Annotation, so after uploading it might be getting disappeared, if I am not wrong while uploading your Annotation based xsd file, you might have got some warnings also. If you can say your requirement so that we can suggest you the suitable Annotation for your requirement

RE: XSDs annotations getting lost during creating/updating a CDT

chandu — Wed, 30 Nov 2016 18:09:03 GMT

I haven't tried but its worth trying, Could you Please check the below syntax for @table annotation.
@Table(name="<table Name>",
indexes = {
@Index(name = "Index Name", columnList = "Column Name"),
@Index(name = "Index Name", columnList = "Column Name"),
}
)

RE: XSDs annotations getting lost during creating/updating a CDT

Sandro Oberdorfer — Wed, 30 Nov 2016 17:02:55 GMT

Thank you. So I guess I have to use the @Column annotation, but do you know how it should look like if I want to use the additional attribute index like it says there?

RE: XSDs annotations getting lost during creating/updating a CDT

Krishna Chaitanya — Wed, 30 Nov 2016 16:47:57 GMT

hi @ sandroo
have a look at the below link

forum.appian.com/.../Custom_Data_Types_from_XSD.html

RE: XSDs annotations getting lost during creating/updating a CDT

Sandro Oberdorfer — Wed, 30 Nov 2016 12:59:12 GMT

... desired outcome but the information to WHY the index is there got completely lost, which is less than ideal of somebody ever wants to understand what I did.

Is there a way to not lose the XSD annotations in during this process?
Thank you for your time!