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The
synchronization subsystem provides facilities for automatic synchronization between
tables and the corresponding records in some external system. Synchronization can be bidirectional or unidirectional in either direction.
comes with pre-built ESAs for common systems such as Exchange
, and Excel. Additional ESAs can be created by customers in Java, or in the language of their choice.
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- It must be possible to obtain the modification timestamps for each record. This timestamp is typically contained in the record itself, but this is not absolutely necessary.
- Record IDs should not be changed, or at least there must be a way to determine any record ID as it was in the last sync. Record IDs can be remapped during sync, but the old ID must be made known to the ESA in order to track record matches.
- Records from the external system, as presented during sync by the ESA, must be grouped by structures, which are mapped on a 1-to-1 basis to types or tables, such as People/Employee. An ESA structure can be a table, a folder, a file or anything else that logically groups records in the external system. Within a given structure, external records must use the same set of field mappings.
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