| Interface | Description | 
|---|---|
| FileLayerLoader | 
 
 The FileLayerLoader defines the interface for plug-ins that can load files
 into the current Task. 
 | 
| Class | Description | 
|---|---|
| AbstractFileLayerLoader | 
 A base implementation of  
FileLayerLoader. | 
| DataSourceFileLayerLoader | 
 The DataSourceFileLayerLoader is an implementation of  
FileLayerLoader
 that wraps an existing file based DataSource class. | 
| FileLayerLoaderExtensionFilter | |
| FileNameExtensionFilter | |
| Option |