How does JIRA Database Value plugin interact with the source database

[Holger Schimanski]

I am trying to understand the architecture of the JIRA Database Value plugin.

Am I right, that there is no data export / sync from source database to JIRA? Just the primary key of the source data is stored in JIRA database. All other data is loaded on the fly while using create, edit or search?

And in JIRA database the primary key is stored in a text field and not in a select field?

[Wim Deblauwe · Accepted solution]

Hi,

you are absolutely correct in your understanding of the plugin. The idea is that you only have a reference to the external data which is in the database, so the external database can change and the data shown in JIRA will be up to date.

regards,

Wim

[Zawistowski Grzegorz]

And how could I use simple fields. Have You got a simplest tutorial thas this on Wiki page ? https://bitbucket.org/wimdeblauwe/jdvp/wiki/Home#markdown-header-general

[Zawistowski Grzegorz]

How to clear a cache of a field. If I delete propeties from classes they work too. I can't edit it or delete this field.