Struct AvroHandler 

pub struct AvroHandler;

Handler for Avro files

Implementations

impl AvroHandler

pub fn new() -> Self

pub fn read(&self, path: &str) -> Result<Vec<Vec<String>>>

Read Avro file into Vec<Vec<String>>

pub fn read_with_headers(&self, path: &str) -> Result<Vec<Vec<String>>>

Read Avro file with field names as first row

pub fn write( &self, path: &str, data: &[Vec<String>], field_names: Option<&[String]>, ) -> Result<()>

Write data to Avro file (all fields as strings)

pub fn get_schema(&self, path: &str) -> Result<Vec<(String, String)>>

Get schema information from Avro file

Trait Implementations

impl DataReader for AvroHandler

fn read(&self, path: &str) -> Result<Vec<Vec<String>>>

Read all data from a file

fn read_with_headers(&self, path: &str) -> Result<Vec<Vec<String>>>

Read data with headers (first row contains column names)

fn read_range(&self, path: &str, range: &CellRange) -> Result<Vec<Vec<String>>>

Read a specific cell range from a file

fn read_as_json(&self, path: &str) -> Result<String>

Read data as JSON string

fn supports_format(&self, path: &str) -> bool

Check if the file format is supported

impl DataWriter for AvroHandler

fn write( &self, path: &str, data: &[Vec<String>], options: DataWriteOptions, ) -> Result<()>

Write data to a file

fn write_range( &self, path: &str, data: &[Vec<String>], _start_row: usize, _start_col: usize, ) -> Result<()>

Write data to a specific cell range

fn append(&self, _path: &str, _data: &[Vec<String>]) -> Result<()>

Append data to an existing file

fn supports_format(&self, path: &str) -> bool

Check if the file format is supported

impl Default for AvroHandler

fn default() -> AvroHandler

Returns the “default value” for a type.

impl FileHandler for AvroHandler

fn format_name(&self) -> &'static str

Get the format name (e.g., “csv”, “xlsx”, “parquet”)

fn supported_extensions(&self) -> &'static [&'static str]

Get supported file extensions

impl SchemaProvider for AvroHandler

fn get_schema(&self, path: &str) -> Result<Vec<(String, String)>>

Get schema information from a file

fn get_column_names(&self, path: &str) -> Result<Vec<String>>

Get column names from a file

fn get_row_count(&self, path: &str) -> Result<usize>

Get number of rows in a file

fn get_column_count(&self, path: &str) -> Result<usize>

Get number of columns in a file