.NET:
configuration.ObjectClass("namespace.classname,
assembly").Indexed(false);
Turns class index off.
Allows to improve the performance to delete and create objects of a class.
db4o maintains an index for each class to be able to deliver all instances of a class in a query. In some cases class index is not necessary:
Indexed(false)
setting will save
resources on maintaining the class index on create and delete of the class
objects.
Object creation performance can be improved using configuration.callConstructors(true) setting.
General read/write performance can be improved with the configuration.reserveStorageSpace(byteCount) setting.