[FLINK-4119] Null checks in close() for Cassandra Input/Output Formats, checking arguments via Flink Preconditions

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 1.1.0
• Component/s: API / DataSet, Connectors / Common
• Assignee: Andrea Sella
• Reporter: Andrea Sella
• Created: 25/Jun/16 14:01
• Updated: 28/Feb/19 13:46
• Resolved: 27/Jun/16 10:22

Description

Add null checks for session and cluster to align the behaviour with Cassandra Streaming Connector, refactor check arguments using Flink Preconditions

Issue Links

• links to: GitHub Pull Request #2163