Make SharedRefDatabaseWrapper a singleton

The SharedRefDatabaseWrapper has optional injections on one of its
fields (sharedRefDbDynamicItem) which is resolved at the multi-site
and high-availability plugins startup phase.

The initial instance created during the plugin startup was injected
correctly thanks to the explicit call to inject fields; however, because
the SharedRefDatabaseWrapper was not a singleton, the subsequent
injections were done without the optional field, causing unexpected
behaviours.

Having a common singleton everywhere assures that the members injection
performed at startup would apply to all uses of SharedRefDatabaseWrapper.

Change-Id: Idb32bbd179629221d8d21c2986a1ad4b9f9077bf
1 file changed
tree: 2b473183852b33cfe915f9d310046a8695458ee2
  1. src/
  2. .gitignore
  3. bindings.md
  4. BUILD
  5. config.md
  6. Jenkinsfile
  7. LICENSE
  8. metrics.md
  9. pom.xml
  10. README.md
README.md

Gerrit interface to a global-refdb

Global ref-database interface for use with Gerrit Code Review.

Enables the de-coupling between Gerrit, its libModules and the different implementations of a globally shared ref-database.

Design

The design for a global ref-db interface can be found as part of the multi-site design documentation, where it first originated and was approved by the community.

Bindings

In order to consume this library, some Guice bindings need to be registered appropriately. More information in the relevant documentation.

Metrics

Global ref-database expose metrics to measure the global ref-database operation latency. List of the available metrics can be found here.