org.bytedeco.arrow

Class BufferReaderRandomAccessFileConcurrencyWrapper

java.lang.Object

org.bytedeco.javacpp.Pointer

org.bytedeco.arrow.RandomAccessFile

org.bytedeco.arrow.BufferReaderRandomAccessFileConcurrencyWrapper

All Implemented Interfaces:

AutoCloseable

Direct Known Subclasses:

BufferReader

@Name(value="arrow::io::internal::RandomAccessFileConcurrencyWrapper<arrow::io::BufferReader>")
 @NoOffset
 @Properties(inherit=arrow.class)
public class BufferReaderRandomAccessFileConcurrencyWrapper
extends RandomAccessFile

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
BufferReaderRandomAccessFileConcurrencyWrapper(Pointer p) Pointer cast constructor.

Method Summary

Modifier and Type	Method and Description
Status	Abort()
Status	Close()
LongResult	GetSize() \brief Return the total file size in bytes.
StringViewResult	Peek(long nbytes)
BufferResult	Read(long nbytes)
LongResult	Read(long nbytes, Pointer out)
BufferResult	ReadAt(long _position, long nbytes) \brief Read data from given file position.
LongResult	ReadAt(long _position, long nbytes, Pointer out) \brief Read data from given file position.
Status	Seek(long _position)
LongResult	Tell()

Methods inherited from class org.bytedeco.arrow.RandomAccessFile

asInputStream, asInputStream, asSeekable, asSeekable, GetStream, WillNeed

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, 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

BufferReaderRandomAccessFileConcurrencyWrapper

public BufferReaderRandomAccessFileConcurrencyWrapper(Pointer p)

Pointer cast constructor. Invokes Pointer(Pointer).

Method Detail

Close

@ByVal
public Status Close()

Abort

@ByVal
public Status Abort()

Tell

@ByVal
public LongResult Tell()

Read

@ByVal
public LongResult Read(@Cast(value="int64_t")
                               long nbytes,
                               Pointer out)

Read

@ByVal
public BufferResult Read(@Cast(value="int64_t")
                                 long nbytes)

Peek

@ByVal
public StringViewResult Peek(@Cast(value="int64_t")
                                     long nbytes)

Seek

@ByVal
public Status Seek(@Cast(value="int64_t")
                           long _position)

GetSize

@ByVal
public LongResult GetSize()

Description copied from class: RandomAccessFile

\brief Return the total file size in bytes. This method does not read or move the current file position, so is safe to call concurrently with e.g. ReadAt().

Overrides:

GetSize in class RandomAccessFile

ReadAt

@ByVal
public LongResult ReadAt(@Cast(value="int64_t")
                                 long _position,
                                 @Cast(value="int64_t")
                                 long nbytes,
                                 Pointer out)

Description copied from class: RandomAccessFile

\brief Read data from given file position. At most nbytes bytes are read. The number of bytes read is returned (it can be less than nbytes if EOF is reached). This method can be safely called from multiple threads concurrently. It is unspecified whether this method updates the file position or not. The default RandomAccessFile-provided implementation uses Seek() and Read(), but subclasses may override it with a more efficient implementation that doesn't depend on implicit file positioning.

Overrides:

ReadAt in class RandomAccessFile

nbytes - [in] The number of bytes to read

out - [out] The buffer to read bytes into

Returns:

The number of bytes read, or an error

ReadAt

@ByVal
public BufferResult ReadAt(@Cast(value="int64_t")
                                   long _position,
                                   @Cast(value="int64_t")
                                   long nbytes)

Description copied from class: RandomAccessFile

\brief Read data from given file position. At most nbytes bytes are read, but it can be less if EOF is reached.

Overrides:

ReadAt in class RandomAccessFile

nbytes - [in] The number of bytes to read

Returns:

A buffer containing the bytes read, or an error