I am a custom Examine Index. Then I need to maintain it with CodeBase.
What is the best event to listen to update the index?

I'm using umbraco.content.AfterUpdateDocumentCache and umbraco.content.AfterClearDocumentCache events, but their signature are using a deprecated object (umbraco.cms.businesslogic.web.Document). I would upgrade to Umbraco 7.0.

Events signature:

using umbraco.cms.businesslogic;
using umbraco.cms.businesslogic.web;

...

protected void content_AfterUpdateDocumentCache(Document sender, DocumentCacheEventArgs e) {
    ...
};

protected void content_AfterClearDocumentCache(Document sender, DocumentCacheEventArgs e) {
    ...
};

I look that these events are used inside Examine: https://github.com/Shandem/Examine/blob/master/Projects/UmbracoExamine/UmbracoEventManager.cs