My workspace

One of my few blog posts i have mentioned how to use and the use cases of using Oracle DataBase changed notification. When you have to need context search or count facts over your datas, you certainly need any modern Lucene based search engine. Elastic search is one of that search engine that can provide those above functionalities. However, from the previous versions of ES, elastic search river is deprecated to ingesting data to ES. Here you can get the whole history about deprecating river in ES. Any way, for now we have two option to ingest or import data from any sources to ES: 1) Implements or modify your DAO services, that can update data in ES and DataBase same time. 2) Polling, implements such a job, which will polling data in some period of time to update data in ES. First approach is the very best option to implements, however if you have any legacy DAO services or 3rd party application that you couldn't make any changes is not for you. Polling to data base frequentl