This guide is intended for anyone extending or customizing Infinispan.
Infinispan makes use of a command/visitor pattern to implement the various top-level methods you see on the public-facing API. This is explained in further detail in the Architectural Overview on the Infinispan public wiki. However, these commands - and their corresponding visitors - are hard-coded as a part of Infinispan’s core module, making it impossible for module authors to extend and enhance Infinispan to create new arbitrary commands and visitors.
From Infinispan 5.1 onwards, you do so by:
META-INF/services/org.infinispan.commands.module.ModuleCommandExtensionsfile and ensure this is packaged in your jar.
Specifying the fully-qualified class name of the
Implement your custom commands and visitors for these commands
Here is an example of an
META-INF/services/org.infinispan.commands.module.ModuleCommandExtensions file, configured accordingly:
For a full, working example of a sample module that makes use of custom commands and visitors, check out Infinispan Sample Module .
This is the list of
Command identifiers that are used by Infinispan based modules or frameworks. Infinispan users should avoid using ids within these ranges. (RANGES to be finalised yet!) Being this a single byte, ranges can’t be too large.
100 - 119
120 - 139