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GraphRegistrationContext

GraphRegistrationContext is a registry of tables, views, and flows in a dataflow graph.

GraphRegistrationContext is required to create a new SqlGraphRegistrationContext.

Creating Instance

GraphRegistrationContext takes the following to be created:

  • Default Catalog
  • Default Database
  • Default SQL Configuration Properties

GraphRegistrationContext is created when:

Convert to DataflowGraph

toDataflowGraph: DataflowGraph

toDataflowGraph creates a DataflowGraph for the tables, views, and flows.

AnalysisException

toDataflowGraph reports an AnalysisException for a GraphRegistrationContext with no tables and no PersistedViews (in the views registry).


toDataflowGraph is used when:

Tables

GraphRegistrationContext creates an empty registry of Tables when created.

A new Table is added when registerTable.

Views

GraphRegistrationContext creates an empty registry of Views when created.

Flows

GraphRegistrationContext creates an empty registry of UnresolvedFlows when created.

Register Table

registerTable(
  tableDef: Table): Unit

registerTable adds the given Table to the tables registry.


registerTable is used when:

Register Flow

registerFlow(
  flowDef: UnresolvedFlow): Unit

registerFlow adds the given UnresolvedFlow to the flows registry.


registerFlow is used when: