Struct BookOutput

pub struct BookOutput {
    n_books: u32,
    prefix: String,
    fields: FieldOutput,
    ids: TableWriter<BookIds>,
    isbns: TableWriter<ISBNrec>,
    authors: TableWriter<AuthRec>,
}

Output that writes books to set of Parquet files.

Fields

n_books: u32

prefix: String

fields: FieldOutput

ids: TableWriter<BookIds>

isbns: TableWriter<ISBNrec>

authors: TableWriter<AuthRec>

Implementations

impl BookOutput

pub fn open(prefix: &str) -> Result<BookOutput>

Trait Implementations

impl DataSink for BookOutput

fn output_files(&self) -> Vec<PathBuf>

Get the output files for the sink.

fn input_files(&self) -> Vec<PathBuf>

Get auxillary input files for the sink.

impl ObjectWriter<MARCRecord> for BookOutput

fn write_object(&mut self, record: MARCRecord) -> Result<()>

Write one object.

fn finish(self) -> Result<usize>

Finish and close the target.

fn write_all_objects<I>(&mut self, objects: I) -> Result<usize>

where I: Iterator<Item = T>,

Write an iterator full of objects.

fn write_and_finish<I>(self, objects: I) -> Result<usize>

where I: Iterator<Item = T>,

Write an iterator of objects and finish the writer.

fn with_transform<F, T2>(self, transform: F) -> MapWriter<F, T2, T, Self>

where F: Fn(T2) -> Result<T>,

Wrap this object writer in a transformed writer.