double GetStatus()

returns the status after the last read- or write-operation.

The status value returned may be any of the following:
Db4objects.Db4o.Ext.Status.Unused no data was ever stored to the Blob field.
Db4objects.Db4o.Ext.Status.Available available data was previously stored to the Blob field.
Db4objects.Db4o.Ext.Status.Queued an operation was triggered and is waiting for it's turn in the Blob queue.
Db4objects.Db4o.Ext.Status.Completed the last operation on this field was completed successfully.
Db4objects.Db4o.Ext.Status.Processing for internal use only.
Db4objects.Db4o.Ext.Status.Error the last operation failed.
or a double between 0 and 1 that signifies the current completion percentage of the currently running operation.

the five Db4objects.Db4o.Ext.Status constants defined in this interface or a double between 0 and 1 that signifies the completion of the currently running operation.