Internals of Apache Jackrabbit OAK repository & OOTB SOLR indexing

[sri vaths]

Hi All,
Please share details on how OAK repository triggers node updates to SOLR for 
indexing, guessing it based on the OAK NodeState model but not sure how the 
flow happens.http://jackrabbit.apache.org/oak/docs/architecture/nodestate.html 
And also want to know the list of node states the index updates can happen to 
SOLR 
with regardsSri