Software Design

Template Method: Data Ingestion Pipeline

UML Class Diagrams · made in Skemio

UML class diagram illustrating an abstract DataIngestionPipeline class defining an ingest template method, inherited by CsvIngestion and JsonIngestion.
UML class diagram illustrating an abstract DataIngestionPipeline class defining an ingest template method, inherited by CsvIngestion and JsonIngestion.
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What it shows

  • Defines invariant pipeline stages in a final base class method.
  • Lets subclasses customize hooks like parse() while enforcing step order.
  • Prevents bugs caused by omitting validation or cleanup stages in extensions.

The takeaway

Enforce the workflow algorithm in a parent template, delegating only variable steps.

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