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create_sparse_streaming_empty

data_beans::sparse_io

Function create_sparse_streaming_empty 

Source 
pub fn create_sparse_streaming_empty(
    backend_file: Option<&str>,
    backend: Option<&SparseIoBackend>,
) -> Result<Box<dyn SparseIo<IndexIter = Vec<usize>>>>
Expand description

Create an empty sparse backend ready for streaming CSC writes.

The returned backend has no data yet — the caller is expected to drive SparseIo::begin_streaming_csc, one or more SparseIo::append_csc_slab calls, SparseIo::finalize_streaming_csc, and finally SparseIo::build_csr_from_csc_streaming.