Zarr Store abstract base class. — ZarrStore • dafr

Uniform read/write API for byte content keyed by path strings. Concrete implementations: DirStore, DictStore, MmapZipStore.

Usage

ZarrStore()

DirStore(root = character(0), consolidate_cache = new.env(parent = emptyenv()))

DictStore(env = NULL, consolidate_cache = new.env(parent = emptyenv()))

MmapZipStore(path = character(0), mode = character(0), xptr = NULL)

Arguments

root: (DirStore) Filesystem root path; created if missing.
consolidate_cache: (DirStore/DictStore) Internal environment holding the in-memory consolidated-metadata index, maintained incrementally across writes so set_* need not re-parse the whole store root on every mutation. Created automatically; not intended for direct use.
env: (DictStore) Internal environment used as the key-value backing store; typically created by new_dict_store().
path: (MmapZipStore) Filesystem path to a zip archive.
mode: (MmapZipStore) One of "r", "r+", "w+", "w"; set by new_mmap_zip_store().
xptr: (MmapZipStore) Internal external pointer to the C++ store; set by new_mmap_zip_store() and not intended for direct use.