epriestley b8e08f34f7 Provide an indirection layer between documents and the search engine ... Summary: In preparation for adding another search engine (see T355): - Rename "executor" to "engine". - Move all engine-specific operations into the engine. Specifically, this means that indexing moves out of the document store and into the engine (it was sort of silly where it was before). - Split choice of an engine into an overridable "selector" class, a base API, and a concrete MySQL implementation (just like storage engine selection). - Make all callers go through the indirection layer. The default selector just unconditionally selects the MySQL engine, but now (with D786) I can build an Elastic Search engine and you guys can build a multi-target engine if you want and I don't get there fast enough. Test Plan: - Created a new document (task). - Searched for and found it. - Viewed index reconstruction. Reviewed By: jungejason Reviewers: jungejason, amckinley, tuomaspelkonen, aran CC: aran, jungejason, epriestley Differential Revision: 788		2011-08-08 11:43:05 -07:00
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base	Provide an indirection layer between documents and the search engine	2011-08-08 11:43:05 -07:00
default	Provide an indirection layer between documents and the search engine	2011-08-08 11:43:05 -07:00