[SPARK-27303] Spark Graph API (Scala/Java)

• Type: Story
• Status: In Progress
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 3.0.0
• Component/s: Graph
• Epic Link: Property Graph / Cypher / Algorithms
• Assignee: Unassigned
• Reporter: Xiangrui Meng
• Created: 28/Mar/19 07:57
• Updated: 03/Apr/20 12:22

Description

(1) As a user, I can construct a PropertyGraph and view its nodes and relationships as DataFrames.

Required:

• Scala API to construct a PropertyGraph.
• Scala API to view nodes and relationships as DataFrames.
• Scala/Java test suites.

(2) As a user, I can save a PropertyGraph after construction to a persist storage. Later I can load it back using PropertyGraph APIs with all future Spark versions.

Required:

• Save/load.
• Scala/Java test suite.

(3) As a user, I can query a PropertyGraph using Cypher language. I learned the syntax from Cypher V9 language reference (https://s3.amazonaws.com/artifacts.opencypher.org/openCypher9.pdf) and in the API doc I can see what features are (not) supported.

Issue Links

• blocks: SPARK-27306 Spark Graph API (Python)
• links to: GitHub Pull Request #24851