Package dev.hardwood

package dev.hardwood

Core entry points for reading Parquet files.

Hardwood manages a shared thread pool for multi-file scenarios. InputFile abstracts the storage backend (local files, S3, in-memory). For single-file reading, use ParquetFileReader directly.

Related Packages

Package	Description
dev.hardwood.avro	Avro integration for materializing Parquet rows as Avro GenericRecord instances.
dev.hardwood.jfr	Java Flight Recorder (JFR) events for diagnosing read performance.
dev.hardwood.metadata	Low-level Parquet file metadata types that mirror the Thrift definitions.
dev.hardwood.reader	Parquet file readers with row-oriented and column-oriented APIs.
dev.hardwood.row	Value types for nested Parquet structures accessed through RowReader.
dev.hardwood.s3	Amazon S3 backend for reading Parquet files from object storage.
dev.hardwood.schema	High-level Parquet schema types with computed definition and repetition levels.
dev.hardwood.writer	Parquet file writer, with a columnar and a row-oriented API over one core.

Class	Description
Experimental	Marks a public API as experimental.
Hardwood	Entry point for reading Parquet files with a shared thread pool.
HardwoodContext	Context object that manages shared resources for Parquet file reading.
HardwoodContext.Builder	Builder for a HardwoodContext.
InMemoryOutputFile	An OutputFile that keeps the file in memory and hands it back.
InputFile	Abstraction for reading Parquet file data.
MetadataSource	Supplies the parsed footer of a file a reader opens, in place of the reader reading it.
OutputFile	Abstraction for writing Parquet file data.
Validity	Per-item nullability over a run of items, shared by the reader and the writer: the reader returns it (a column-reader leaf or STRUCT / REPEATED layer scope), and the writer accepts it as a column's null mask.