[FLINK-3853] Reduce object creation in Gelly utility mappers

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Implemented
• Affects Version/s: 1.1.0
• Fix Version/s: 1.1.0
• Component/s: Library / Graph Processing
• Assignee: Greg Hogan
• Reporter: Greg Hogan
• Created: 29/Apr/16 12:48
• Updated: 01/May/16 11:50
• Resolved: 01/May/16 11:50

Description

Gelly contains a set of MapFunction between Vertex and Tuple2 and between Edge and Tuple3. A Vertex is a Tuple2 and an Edge is a Tuple3, and conversion in the opposite direction can be performed with a single object per MapFunction.

This only applies to the Gelly Java API. Scala tuples are not related to Vertex or Edge.