Support option to materialize one file per-layer instead of per-item-group#464
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Support option to materialize one file per-layer instead of per-item-group#464
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…group. This adds a new RasterStorage abstraction that is responsible for accessing raster data stored at a window. Window.get_raster_dir is deprecated and instead all raster access should go through RasterStorage. The default RasterStorage, PerItemGroupStorage, is compatible with our existing datasets, while PerLayerStorage can be used to do the one-file-per-layer mode. Note that completed files will still be created per-item-group; we will need a db-backed WindowMetadata implementation to avoid that.
favyen2
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Jan 28, 2026
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This adds a new RasterStorage abstraction that is responsible for accessing raster data stored at a window. Window.get_raster_dir is deprecated and instead all raster access should go through RasterStorage. The default RasterStorage, PerItemGroupStorage, is compatible with our existing datasets, while PerLayerStorage can be used to do the one-file-per-layer mode.
Note that completed files will still be created per-item-group; we will need a db-backed WindowMetadata implementation to avoid that.