| Name | Description | Type | Package | Framework |
| BoundingPolygonImpl | Boundary enclosing the dataset, expressed as the closed set of (x,y) coordinates of the polygon. | Class | org.geotools.metadata.iso.extent | GeoTools |
| ExtentImpl | Information about spatial, vertical, and temporal extent. | Class | org.geotools.metadata.iso.extent | GeoTools |
| GeographicBoundingBoxImpl | Geographic position of the dataset. | Class | org.geotools.metadata.iso.extent | GeoTools |
| GeographicDescriptionImpl | Description of the geographic area using identifiers. | Class | org.geotools.metadata.iso.extent | GeoTools |
| GeographicExtentImpl | Base class for geographic area of the dataset. | Class | org.geotools.metadata.iso.extent | GeoTools |
| SpatialTemporalExtentImpl | Boundary enclosing the dataset, expressed as the closed set of (x,y) coordinates of the polygon. | Class | org.geotools.metadata.iso.extent | GeoTools |
| TemporalExtentImpl | Boundary enclosing the dataset, expressed as the closed set of (x,y) coordinates of the polygon. | Class | org.geotools.metadata.iso.extent | GeoTools |
| VerticalExtentImpl | Vertical domain of dataset. | Class | org.geotools.metadata.iso.extent | GeoTools |