| Interface | Description | 
|---|---|
| BVNodesFilter | Collector to resolve all the assets that are to be excluded in the topology business view. | 
| Class | Description | 
|---|---|
| AssetGraph | Deprecated replaced by avoiding through asset table where millions of records are possible. | 
| AssetLink | Deprecated same reason as for  AssetGraph | 
| AssetNode | Deprecated same reason as for  AssetGraph | 
| AssetNumCharNode | Node to represent one char out of assetnum in sequence. | 
| AssetNumTree | Collect a set of assetnum as a tree index. | 
| IndexBVNodesFilter | Resolve all the assets that are to be excluded in the topology business view by using the index. | 
| INSTRUCTION | provide the guide how to handle the result. | 
| PostDeleteInfo | The residual info after one asset node is removed from the topology BV cache table. | 
| SQLBVNodesFilter | Resolve all the assets that are to be excluded in the topology business view by using the SQL directly. | 
| SQLRunner | Run SQL directly in case the mboset API is not applicable, eg, very large database. | 
| TopologyCacheBuilder | The buisness view cache builder class called  by cron | 
| TopologyCronTask | Cron task class to build the buisness view topology cache |