DeletionVectorStore¶

DeletionVectorStore is an abstraction of stores of deletion vectors to be loaded as RoaringBitmapArrays.

DeletionVectorStore is created using createInstance utility.

Contract (Subset)¶

Loading Deletion Vector¶

read(
  path: Path,
  offset: Int,
  size: Int): RoaringBitmapArray

Loads (reads) a deletion vector (as RoaringBitmapArray)

See:

• HadoopFileSystemDVStore

Used when:

• DeletionVectorStoredBitmap is requested to load a deletion vector

Implementations¶

• HadoopFileSystemDVStore

Creating DeletionVectorStore¶

createInstance(
  hadoopConf: Configuration): DeletionVectorStore

createInstance creates a HadoopFileSystemDVStore.

createInstance is used when:

• DeletionVectorWriter is requested to create a deletion vector partition mapper function
• CDCReaderImpl is requested to processDeletionVectorActions
• RowIndexMarkingFiltersBuilder is requested to create a RowIndexFilter (for non-empty deletion vectors)