Field Element for EventClass/Schema (ADF)
Provides a location for defining one event class field.
Syntax
<EventClasses>
<EventClass>
...
<Schema>
<Field>
Element Characteristics
| Characteristic | Description |
|---|---|
Data type |
None. |
Default value |
None. |
Occurrence |
Required once or more per Schema element. |
Updates |
Can be added and deleted when updating the application. |
Element Relationships
| Relationship | Elements |
|---|---|
Parent element |
|
Child elements |
FieldName Element for EventClass/Schema/Field (ADF) |
Remarks
The Field element contains the field name, field type, and field type modifiers used when creating the event class table in the database.
Important
If you add or delete fields, updating the application deletes and re-creates the event class. This includes dropping and re-creating the SQL Server tables and indexes used by this event class. Any data existing in the original event class tables is permanently deleted.
Example
The following example shows the definition of a StockSymbol event field.
<Field>
<FieldName>StockSymbol</FieldName>
<FieldType>char(10)</FieldType>
<FieldTypeMods>NOT NULL</FieldTypeMods>
</Field>
See Also
Reference
Application Definition File Reference
Other Resources
Defining Core Event Class Properties
Updating Instances and Applications