[FLINK-24599] Make checking for type root and family less verbose

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.15.0
• Component/s: Table SQL / API
• Labels: pull-request-available
• Assignee: Marios Trivyzas
• Reporter: Timo Walther
• Created: 20/Oct/21 07:46
• Updated: 26/Oct/21 12:23
• Resolved: 26/Oct/21 12:23

Description

Currently, we use `LogicalTypeChecks.hasRoot()` and `LogicalTypeChecks.hasFamily()` for frequent checking of logical types. It was a conscious decision to not overload `LogicalType` with utility methods in the beginning. But the two mentioned methods would be nice to have available in `LogicalType` directly.

We suggest:

LogicalType#is(LogicalTypeRoot)
LogicalType#is(LogicalTypeFamily)

Issue Links

• links to: GitHub Pull Request #17550