What is Template Method?
Defines the skeleton of an algorithm in a base type. Subclasses fill in specific steps without changing the flow.
validate → csv → write
Template method fixes the…
Write it in your own words in the app.
In real work
Template method: BaseExporter defines validate, transform, and write; CSVExporter only overrides transform.
In the illustration
The fixed validate and write stations stay bolted down while a CSV insert drops into the middle station; a sheet runs validate → CSV transform → write.
Write a ReportExporter base type in your coding agent using a template method: load, transform and write are fixed in order, and the CSV and PDF subclasses only fill in write.
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