View¶

View is an extension of the GraphElement abstraction for dataflow graph elements that represent persisted and temporary views in a declarative pipeline.

Contract¶

Comment¶

comment: Option[String]

Used when:

• PipelinesHandler is requested to define an output
• SqlGraphRegistrationContext is requested to process the SQL queries:
  • CREATE VIEW
  • CREATE TEMPORARY VIEW

Properties¶

properties: Map[String, String]

Used when:

• PipelinesHandler is requested to define an output
• SqlGraphRegistrationContext is requested to process the SQL queries:
  • CREATE VIEW
  • CREATE TEMPORARY VIEW
• DatasetManager is requested to materialize a view

SQL Text¶

sqlText: Option[String]

Used when:

• PipelinesHandler is requested to define an output
• SqlGraphRegistrationContext is requested to process the SQL queries:
  • CREATE VIEW
  • CREATE TEMPORARY VIEW

Implementations¶

• PersistedView
• TemporaryView