Persistence on Location items

Setup, Configuration and Use Items & Sitemaps
1

Hey guys,

As I updated my .items files using an external API, I found out that when I modify the file by adding a tag to an item (or removing it) resets the current state of the item to NULL.

This is not a big issue if I do it on items that are persisted, but I ran into problems with items that can not be persisted using the JDBC Mysql service.
Specifically, when trying to save data for Location items, JDBC shows a warning saying there is no way to generate the table for that item.

I tried some workarounds on this (saving item state as a String and then persist the String, then on System started put the state back into my Location item), but I hope there is an easier way to handle this.

2

Use MapDB for restoreOnStartup. It can persist all OH Item types, works faster, and only saves the most recent value which makes it a better fit for Items where the only reason you are saving them to the database is to restore it later.