org.bytedeco.arrow

Class BufferReader

java.lang.Object

org.bytedeco.javacpp.Pointer

org.bytedeco.arrow.RandomAccessFile

org.bytedeco.arrow.BufferReaderRandomAccessFileConcurrencyWrapper

org.bytedeco.arrow.BufferReader

All Implemented Interfaces:

AutoCloseable

@Namespace(value="arrow::io")
 @NoOffset
 @Properties(inherit=arrow.class)
public class BufferReader
extends BufferReaderRandomAccessFileConcurrencyWrapper

\class BufferReader \brief Random access zero-copy reads on an arrow::Buffer

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
BufferReader(ArrowBuffer buffer)
BufferReader(byte[] data, long size)
BufferReader(ByteBuffer data, long size)
BufferReader(BytePointer data, long size)
BufferReader(Pointer p) Pointer cast constructor.

Method Summary

Modifier and Type	Method and Description
ArrowBuffer	buffer()
boolean	closed() \brief Instantiate from std::string or arrow::util::string_view.
boolean	supports_zero_copy()
Status	WillNeed(ReadRange ranges) EXPERIMENTAL: Inform that the given ranges may be read soon.

Methods inherited from class org.bytedeco.arrow.BufferReaderRandomAccessFileConcurrencyWrapper

Abort, Close, GetSize, Peek, Read, Read, ReadAt, ReadAt, Seek, Tell

Methods inherited from class org.bytedeco.arrow.RandomAccessFile

asInputStream, asInputStream, asSeekable, asSeekable, GetStream

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, getPointer, getPointer, getPointer, getPointer, hashCode, isNull, isNull, limit, limit, malloc, maxBytes, maxPhysicalBytes, memchr, memcmp, memcpy, memmove, memset, offsetAddress, offsetof, offsetof, parseBytes, physicalBytes, position, 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

BufferReader

public BufferReader(Pointer p)

Pointer cast constructor. Invokes Pointer(Pointer).

BufferReader

public BufferReader(@SharedPtr
                    ArrowBuffer buffer)

BufferReader

public BufferReader(@Cast(value="const uint8_t*")
                    BytePointer data,
                    @Cast(value="int64_t")
                    long size)

BufferReader

public BufferReader(@Cast(value="const uint8_t*")
                    ByteBuffer data,
                    @Cast(value="int64_t")
                    long size)

BufferReader

public BufferReader(@Cast(value="const uint8_t*")
                    byte[] data,
                    @Cast(value="int64_t")
                    long size)

Method Detail

closed

@Cast(value="bool")
public boolean closed()

\brief Instantiate from std::string or arrow::util::string_view. Does not own data

supports_zero_copy

@Cast(value="bool")
public boolean supports_zero_copy()

buffer

@SharedPtr
public ArrowBuffer buffer()

WillNeed

@ByVal
public Status WillNeed(@StdVector
                              ReadRange ranges)

Description copied from class: RandomAccessFile

EXPERIMENTAL: Inform that the given ranges may be read soon. Some implementations might arrange to prefetch some of the data. However, no guarantee is made and the default implementation does nothing. For robust prefetching, use ReadAt() or ReadAsync().

Overrides:

WillNeed in class RandomAccessFile