Package dev.frostlake.functions.scalar.file

Interface StageFileLocator

All Known Implementing Classes:
StageFileResolver
public interface StageFileLocator
Callback TO_FILE uses to turn a stage reference such as @stage/dir/file.txt into the file it names — the seam that lets the FILE functions read real stage metadata without depending on the executor class itself. Mirrors dev.frostlake.functions.table.QueryRunner, and exists instead of a Function<String, StagedFile> per the project's no-functional-interfaces rule.

  • Method Summary

    Modifier and Type
    Method
    Description
    StagedFile
    locate(String location)
    Resolve a stage reference to the file it names.

  • Method Details

    • locate

      StagedFile locate(String location)
      Resolve a stage reference to the file it names.
      Parameters:
      location - a stage reference: @stage/path, @db.schema.stage/path, @~/path or @%table/path
      Returns:
      the resolved file, or null when the reference names no stage this engine can reach (the caller turns that into Snowflake's "was not found" error)