XX1 Lookup Table Configuration (Encode/Decode)
XX1 provides an encode/decode functionality, which allows you to implement fast lookup tables on the server. They are used for example to decode airport, airlines and equipment names. They can also be used for multi national language support and normalization of error codes/messages.
The XX1 JavaScript engine and XSL extensions provide global functions that work against those tables.
All lookup tables are in XML text file format and loaded at startup.
Lookup Index File Configuration
The main index with references to all tables is configured in the main configuration file xxscfg.xml under the <lookup> section.
| Node | Description |
|---|---|
| te | Table entry definition. Attributes:
|
| cfg | XML file name containing the table |
Example:
<edt>
<te name = "Airports">
<cfg>airports.xml</cfg>
</te>
<te name = "Equipments">
<cfg>equipments.xml</cfg>
</te>
</edt>
Lookup Table File Configuration
The actual lookup tables have the following format.
| Node | Description |
|---|---|
| ce | Code entry definition |
| ce/code | input value for Decode functions |
| ce/desc | return value for Decode functions or compare value matched against pattern in Encode functions |
| cd/data | (optional) free use XML data block or text block returned with Encode or to be used for extended selection with Decode function |
Example:
<edt name="Airports">
<ce>
<code>AAA</code>
<desc>Anaa</desc>
<data>
<Country>PF</Country>
</data>
</ce>
<ce>
<code>AAC</code>
<desc>Al Arish</desc>
<data>
<Country>EG</Country>
</data>
</ce>
</edt>