turns indexing on or off.
[Visual Basic] Sub indexed( _ ByVal flag As Boolean _ ) [C#] void indexed( bool flag ); [C++] void indexed( bool flag ); [JScript] function indexed( bool flag );
trueor
falseto turn indexing on for this field
turns indexing on or off.
Field indices dramatically improve query performance but they may considerably reduce storage and update performance.
The best benchmark whether or not an index on a field achieves the desired result is the completed application - with a data load that is typical for it's use.
This configuration setting is only checked when the com.db4o.ObjectContainer is opened. If the setting is set to
trueand an index does not exist, the index will be created. If the setting is set to
falseand an index does exist the index will be dropped.
ObjectField Interface | com.db4o.config Namespace