Struct parquet::record::reader::TreeBuilder

pub struct TreeBuilder { /* private fields */ }

Tree builder for Reader enum. Serves as a container of options for building a reader tree and a builder, and accessing a records iterator RowIter.

Implementations

impl TreeBuilder

pub fn new() -> Self

Creates new tree builder with default parameters.

pub fn with_batch_size(self, batch_size: usize) -> Self

Sets batch size for this tree builder.

pub fn build( &self, descr: SchemaDescPtr, row_group_reader: &dyn RowGroupReader, ) -> Result<Reader>

Creates new root reader for provided schema and row group.

pub fn as_iter( &self, descr: SchemaDescPtr, row_group_reader: &dyn RowGroupReader, ) -> Result<ReaderIter>

Creates iterator of Rows directly from schema descriptor and row group.

Trait Implementations

impl Default for TreeBuilder

fn default() -> Self

Returns the “default value” for a type.