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uCosminexus Service Platform, Overview
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Exclusive control while operating files in the file adapter prevents conflict and data inconsistencies in the process.
Exclusive control occurs in file units that are to be processed in 1 file adapter. Accordingly, if a file being processed in the file adapter is operated from an external application, there is no exclusive control. If a single HCSC server uses multiple file adapters, there is no exclusive control between file adapters. Use of 1 file adapter is recommended for files in identical formats.
The following table describes exclusive control during reading and writing of files:
Table 2-7 Exclusive control during reading and writing of files
| Exclusive control | Reading | Writing |
|---|---|---|
| Exclusive reference (while reading) | Y | N |
| Exclusive update (while writing) | N | N |
Exclusive reference occurs if a file is read in the file adapter. You can read a file in exclusive reference but you cannot write in it. If you write in a file in exclusive reference, standby status occurs till the reading process being executed ends.
Exclusive update occurs if a file is written in the file adapter. You cannot read and write in a file in exclusive update. If you read or write in a file in exclusive update, standby status occurs till the writing process being executed ends.
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