| Interface | Description | 
|---|---|
| ObjectContainingMetaInformation | 
 TODO: comment class 
 | 
| Class | Description | 
|---|---|
| Attribute2UnitMap | 
 Meta information object to store the units for the attributes in a layer. 
 | 
| MetaDataMap | 
 Class to store meta information of various kinds in a map. 
 | 
| MetaInformationHandler | 
 Tool class for easier handling of meta information on a layer basis. 
 |