使用Java监听mongodb的多个集合中的更改并处理相应的集合

Question

I have say 100 collections, each with a different json structure . I want to listen all these ,say for example if there are changes in 4 collections, then i need to get new additions to these collections, process them parallely with their structure specific code .

Any suggestions?

Answer 1

You can use a Tailable Cursor . The mechanics are relatively simple, there are numerous oplog tailing examples out there written in Java, here are a few:

• TailableCursorExample
• Wordnik mongo-admin-utils
• OplogTailThread