Re: Change audit framework

[Andrus Adamchik]

Here is the design of the audit framework for everyone's review:

https://issues.apache.org/jira/browse/CAY-2030

The way it will work from the user perspective is this:

  // bootstrap the filter by adding an extra Cayenne-provided module to 
  // runtime. Optionally add your own module that overrides context provider 
  // (e.g. to store request IP address and user name).
  ServerRuntime r = ServerRuntimeBuilder.builder().addModule(new 
WhateverModuleNameWeUse()).build();

  // register listener
  r.getDataDomain().addListener(new MyListener());


  // listener code
  class MyListener {


    @PostCommit
    void processAsChangeset(Map<ObjectId, ObjectChangeSet> map) {..}

    // optionally can take a changeset serialized to JSON
    @PostCommit
    void processAsJSON(Map<ObjectId, String> map) {..}
  }

Andrus