org.bytedeco.parquet

Class FileReaderBuilder

java.lang.Object

org.bytedeco.javacpp.Pointer

org.bytedeco.parquet.FileReaderBuilder

All Implemented Interfaces:

AutoCloseable

@Namespace(value="parquet::arrow")
 @NoOffset
 @Properties(inherit=parquet.class)
public class FileReaderBuilder
extends Pointer

\brief Experimental helper class for bindings (like Python) that struggle either with std::move or C++ exceptions

Nested Class Summary

Nested classes/interfaces inherited from class org.bytedeco.javacpp.Pointer

Pointer.CustomDeallocator, Pointer.Deallocator, Pointer.NativeDeallocator, Pointer.ReferenceCounter

Field Summary

Fields inherited from class org.bytedeco.javacpp.Pointer

address, capacity, limit, position

Constructor Summary

Constructors

Constructor and Description
FileReaderBuilder()
FileReaderBuilder(long size) Native array allocator.
FileReaderBuilder(Pointer p) Pointer cast constructor.

Method Summary

Modifier and Type	Method and Description
Status	Build(FileReader out) Build FileReader instance
FileReaderBuilder	getPointer(long i)
FileReaderBuilder	memory_pool(MemoryPool pool) Set Arrow MemoryPool for memory allocation
Status	Open(RandomAccessFile file)
Status	Open(RandomAccessFile file, ReaderProperties properties, FileMetaData metadata) Create FileReaderBuilder from Arrow file and optional properties / metadata
FileReaderBuilder	position(long position)
FileReaderBuilder	properties(ArrowReaderProperties arg_properties) Set Arrow reader properties
ParquetFileReader	raw_reader()

Methods inherited from class org.bytedeco.javacpp.Pointer

address, asBuffer, asByteBuffer, availablePhysicalBytes, calloc, capacity, capacity, close, deallocate, deallocate, deallocateReferences, deallocator, deallocator, equals, fill, formatBytes, free, getDirectBufferAddress, getPointer, getPointer, getPointer, hashCode, interruptDeallocatorThread, isNull, isNull, limit, limit, malloc, maxBytes, maxPhysicalBytes, memchr, memcmp, memcpy, memmove, memset, offsetAddress, offsetof, offsetof, parseBytes, physicalBytes, physicalBytesInaccurate, position, put, realloc, referenceCount, releaseReference, retainReference, setNull, sizeof, sizeof, toString, totalBytes, totalCount, totalPhysicalBytes, withDeallocator, zero

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

FileReaderBuilder

public FileReaderBuilder(Pointer p)

Pointer cast constructor. Invokes Pointer(Pointer).

FileReaderBuilder

public FileReaderBuilder(long size)

Native array allocator. Access with Pointer.position(long).

FileReaderBuilder

public FileReaderBuilder()

Method Detail

position

public FileReaderBuilder position(long position)

Overrides:

position in class Pointer

getPointer

public FileReaderBuilder getPointer(long i)

Overrides:

getPointer in class Pointer

Open

@ByVal
public Status Open(@SharedPtr @Cast(value={"","std::shared_ptr<arrow::io::RandomAccessFile>"})
                           RandomAccessFile file,
                           @Const @ByRef(nullValue="parquet::ReaderProperties(parquet::default_reader_properties())")
                           ReaderProperties properties,
                           @SharedPtr
                           FileMetaData metadata)

Create FileReaderBuilder from Arrow file and optional properties / metadata

Open

@ByVal
public Status Open(@SharedPtr @Cast(value={"","std::shared_ptr<arrow::io::RandomAccessFile>"})
                           RandomAccessFile file)

raw_reader

public ParquetFileReader raw_reader()

memory_pool

public FileReaderBuilder memory_pool(MemoryPool pool)

Set Arrow MemoryPool for memory allocation

properties

public FileReaderBuilder properties(@Const @ByRef
                                    ArrowReaderProperties arg_properties)

Set Arrow reader properties

Build

@ByVal
public Status Build(@UniquePtr
                            FileReader out)

Build FileReader instance