[SPARK-14386] spark.ml DecisionTreeModel abstraction should not be exposed

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.0.0
• Component/s: ML
• Target Version/s: 2.0.0
• Assignee: Joseph K. Bradley
• Reporter: Joseph K. Bradley
• Created: 04/Apr/16 22:23
• Updated: 05/Apr/16 03:12
• Resolved: 05/Apr/16 03:12

Description

In spark.ml, GBT and RandomForest expose the trait DecisionTreeModel in the trees method, but they should not since it is a private trait (and not ready to be made public). It will also be more useful to users if we return the concrete types.

Proposal: return concrete types

• The MIMA checks appear to be OK with this change.

Issue Links

• links to: [Github] Pull Request #12158 (jkbradley)