demus/openhab-addons
1
0
Fork 0
mirror of https://github.com/openhab/openhab-addons.git synced 2025-01-25 14:55:55 +01:00
Code Issues Packages Projects Releases Wiki Activity
92145428df
openhab-addons/bundles/org.openhab.persistence.mapdb
History
Jacob Laursen 92145428df Update license headers to 2024 (#16168) 
* Update copyright year in configuration
* Update license headers
* Manually update nibeheatpump headers (.cpp/.h/.ino)
* Manually update smsmodem header
* Manually update hueemulation header
* Manually update addon-header.xml header

Signed-off-by: Jacob Laursen <jacob-github@vindvejr.dk>
Signed-off-by: Ciprian Pascu <contact@ciprianpascu.ro>
2025-01-02 09:48:23 +02:00
..
src Update license headers to 2024 (#16168) 2025-01-02 09:48:23 +02:00
NOTICE
pom.xml Apply spotless after release (#16097) 2023-12-22 23:30:38 +01:00
README.md [mapdb] Fix "a" typo and use "-" for bullets in docs (#13966) 2022-12-16 11:22:48 +01:00

README.md

MapDB Persistence

The MapDB persistence service is based on a simple key-value store that only saves the last value. MapDB is useful for restoring items that have the restoreOnStartup strategy because other persistence options have some drawbacks if only the last value is needed on restarts.

Some disadvantages of other persistence services compared to MapDB are that they:

  • grow in time
  • require complex installs (influxdb, jdbc, jpa)
  • rrd4j cannot store all item types (only numeric types)

It is only possible to query the last value and not other historic values because the MapDB persistence service can only store one value per item.