What API does Mondrian use?
Mondrian’s main API is olap4j., an extension to JDBC for OLAP applications. Mondrian also has a provider for XML for Analysis. Historically, Mondrian had its own API, consisting of classes in the mondrian.olap package. That API has been deprecated since mondrian-3.0, and may change or be removed without warning in future versions. JPivot still uses it.