GraphElement¶

GraphElement is an abstraction of dataflow graph elements that have an identifier and an origin.

Contract¶

Identifier¶

identifier: TableIdentifier

QueryOrigin¶

origin: QueryOrigin

Used when:

• PipelinesHandler is requested to define a flow and an output
• SqlGraphRegistrationContext is requested to process a single SQL query
• FlowResolver is requested to attemptResolveFlow
• DatasetManager is requested to materialize datasets (for error reporting)
• FlowExecution is requested for the QueryOrigin
• FlowProgressEventLogger is requested to report an event

Implementations¶

• Flow
• Input
• Sink
• View