[BEAM-767] Add DisplayData builder '.nested(..)' operation

• Type: Bug
• Status: Resolved
• Priority: P2
• Resolution: Won't Fix
• Fix Version/s: Not applicable
• Component/s: sdk-java-core
• Labels: Done
• Assignee: Scott Wegner
• Reporter: Scott Wegner
• Created: 18/Oct/16 16:10
• Updated: 06/Oct/20 21:56
• Resolved: 18/Nov/16 22:40

Description

See: https://github.com/apache/incubator-beam/pull/1088#discussion_r83332515

In the Java SDK, components can register display data directly, as well as include display data from sub-components via the 'include(..)' operation. In PR #1008, we add 'paths' to display data metadata and also include a 'delegate(..)' action.

During the change for paths, we noticed an emerging pattern where components will typically add the .getClass() of a subcomponent before including it. We can support this convention better by embedding it in a single configurable operation, '.nested(..)'

Issue Links

• links to: GitHub Pull Request #1208