Tupshin Harper created CASSANDRA-6846:
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             Summary: Provide standard interface for deep application server 
integration
                 Key: CASSANDRA-6846
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6846
             Project: Cassandra
          Issue Type: New Feature
          Components: API, Core
            Reporter: Tupshin Harper
            Assignee: Tupshin Harper
             Fix For: 3.0


Instead of creating a pluggable interface for Thrift, I'd like to create a 
pluggable interface for arbitrary app-server deep integration.

Inspired by both the existence of intravert-ug, as well as there being a long 
history of various parties embedding tomcat or jetty servlet engines inside 
Cassandra, I'd like to propose the creation an internal somewhat stable 
(versioned?) interface that could allow any app server to achieve deep 
integration with Cassandra, and as a result, these servers could 
1) host their own apis (REST, for example
2) extend core functionality by having limited (see triggers and wide row 
scanners) access to the internals of cassandra

The hand wavey part comes because while I have been mulling this about for a 
while, I have not spent any significant time into looking at the actual surface 
area of intravert-ug's integration. But, using it as a model, and also keeping 
in minds the general needs of your more traditional servlet/j2ee containers, I 
believe we could come up with a reasonable interface to allow any jvm app 
server to be integrated and maintained in or out of the Cassandra tree.

This would satisfy the needs that many of us (Both Ed and I, for example) to 
have a much greater degree of control over server side execution, and to be 
able to start building much more interestingly (and simply) tiered applications.



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