Bentley Map allows organizations to take advantage of the many benefits offered by Oracle Spatial. Bentley Map can connect live with Oracle Spatial for the creation, editing, and analysis of spatial data or work in a disconnected “extract, modify, post” workflow. Because Bentley Map is an excellent database citizen and adheres to the Oracle object-relational model, other Oracle compliant non-Bentley tools can easily read and write the Oracle Spatial data it creates. The converse is also true in that Bentley Map can read and write most Oracle Spatial data if it has been created following the Oracle Spatial standards. Bentley also provides tools to easily migrate existing DGN data into Oracle Spatial.
Oracle Spatial Editing
Bentley Map supports direct two-tier editing of standard Oracle Spatial databases employing a feature locking mechanism for multi-user environments. When configured with the Bentley Geospatial Server, the architecture supports simultaneous multi-user editing, long transactions, optimistic and pessimistic locking, and the time component features provided by Oracle Spatial. Long transactions and versioning are enabled through full support of the Oracle Workspace Manager. Oracle Workspace Manager is Oracle standard technology for versioning. A versioning system allows multi-user editing and study of multiple what-if scenarios, as well as optimistic long transaction management ideal for engineering work.
Oracle Spatial Topology
The availability of native topology from Oracle opens the door for the use of topology and spatial analysis across a large community of users, broadening the scope and impact that topologically based spatial information can have. It's straightforward for Bentley Map to maintain the topological relationships that may have been defined and stored in the Oracle Spatial database because Bentley Map uses the native Oracle Spatial topology model.
Bentley supports two types of topology in our GIS Solutions; session (“on-demand”) topology and persistent (“stored in DGN or Oracle”) topology. Topological relationships are stored in the DGN file according to the same model employed by Oracle Spatial. This allows complex analysis operations to occur quickly and maintains compatibility with Oracle Spatial.
Session topology is created when needed for spatial operations. Bentley Map includes an extensive range of tools to repair, build, and create topology from existing geometry. Persistent topology is automatically maintained while the DGN is edited for features defined to participate in a topology. The topological information is guaranteed to be up to date at any time. Complex spatial analysis can be performed very quickly on the persisted topology since it doesn’t need to be recalculated.
Connected and disconnected editing/analysis of the Oracle topology is possible. When taking data into the field, you get the full power of the Oracle topology inside a DGN. Leveraging the Oracle Spatial topology model in the Bentley environment means data is topologically correct and consistent at all times, at the database level and at the application level (in the office or on the field), increasing data quality and accuracy.