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Any module in DELFT-FEWS that requires data from the database, or produces data that must be stored in the database, does so through the use of a complex data type referred to as the Time Series Set. A time series set can be compared to a query that is run against the database. It contains all the keys to uniquely identify the set of data to be retrieved (for more information on key attributes, see Key attributes).
Time series sets form a large part of the configuration. Most modules have a standard structure, where the configuration starts with a request of specific set of data from the database using one or more input time series sets, a number of functional items which describe how the data is transformed, and one or more output time series sets which are used to store the data in the database under a unique combination of keys.
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- A manually edited value will get the expiry time of the timeseriesset it is in, in the filters.xml or displaygroups.xml (depending on from which display the edit session started).
- If there is not expiryTime configured, then the default expirytime from the global.properties file will be taken.
- If this expiry time is not set, a default of 10 days is used.