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ColumnarFile

scirs2_io::binary_formats

Struct ColumnarFile

pub struct ColumnarFile;

Expand description

Simple columnar binary file writer / reader.

Columns are stored in insertion order. Each column is written independently; the file can be read back selectively by name.

Implementations§

impl ColumnarFile

pub fn write(path: &Path, columns: &HashMap<String, ColumnData>) -> Result<()>

Write all columns in columns to path.

pub fn read(path: &Path) -> Result<HashMap<String, ColumnData>>

Read all columns from path.

pub fn read_column(path: &Path, col_name: &str) -> Result<ColumnData>

Read a single named column from path, scanning the file serially.

Returns Err if the column is not present.

Auto Trait Implementations§

impl Freeze for ColumnarFile

impl RefUnwindSafe for ColumnarFile

impl Send for ColumnarFile

impl Sync for ColumnarFile

impl Unpin for ColumnarFile

impl UnsafeUnpin for ColumnarFile

impl UnwindSafe for ColumnarFile

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