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The non-DB connectors on the other hand are implemented one by one by ayfie using the ayfie internal Connector SDK on the ayfie side and normally some target system provided API on the other. Each connector ends up as one or more DLLs as illustrated to the bottom right above. The GenericSQL Connector is actually nothing more than just another such SDK developed connector, the difference being that it has been implemented to take the SQL commands to use from a configuration file rather than from within its code.
Data
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Extraction
The data extraction performed by the connectors is a two phase operation. The first phase is called discovery and only meta data such as for instance file name, file size, etc is collected and indexed during this phase. The next phase is called fetch and in this phase the rest of the data, the actual textual content, is retrieved, processed and indexed.
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The job of the Index Builder is to keep the search index in sync with the documents that are stored in the database. Hence, any added, deleted or altered document in the database will be detected by the Index Builder upon which it will do a re-index. The way the index Builder detects the changes is by monitoring two specific database tables (doc.document and the doc.document_tombstone) for any added, altered or deleted documents. If it finds any row with a time stamp newer than more recent than it's last visit, it will process that row.
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The SharePoint App Plug-In
The ayfie Locator Application for SharePoint is an add-on package to SharePoint that allows users of SharePoint to search with ayfie Locator from within the SharePoint GUI.
Data Enrichment Services (Rules Engine)
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