org.bytedeco.parquet

Class ParquetInputWrapper

java.lang.Object

org.bytedeco.javacpp.Pointer

org.bytedeco.arrow.FileInterface

org.bytedeco.arrow.InputStream

org.bytedeco.arrow.RandomAccessFile

org.bytedeco.parquet.ParquetInputWrapper

All Implemented Interfaces:

AutoCloseable

@Namespace(value="parquet")
 @NoOffset
 @Properties(inherit=parquet.class)
public class ParquetInputWrapper
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
ParquetInputWrapper(Pointer p) Pointer cast constructor.
ParquetInputWrapper(RandomAccessSource source)

Method Summary

Modifier and Type	Method and Description
Status	Close() \brief Close the stream cleanly For writable streams, this will attempt to flush any pending data before releasing the underlying resource.
boolean	closed() \brief Return whether the stream is closed
LongResult	GetSize() Return the total file size in bytes.
BufferResult	Read(long nbytes)
LongResult	Read(long nbytes, Pointer out)
BufferResult	ReadAt(long _position, long nbytes) \brief Read data from given file position.
Status	Seek(long _position)
LongResult	Tell() \brief Return the position in this stream

Methods inherited from class org.bytedeco.arrow.RandomAccessFile

asSeekable, asSeekable, GetSize, GetSize, GetSize, GetStream, ReadAt, ReadAt, ReadAt, ReadAt, ReadAt

Methods inherited from class org.bytedeco.arrow.InputStream

Advance, asReadable, asReadable, Peek, supports_zero_copy

Methods inherited from class org.bytedeco.arrow.FileInterface

Abort, mode, Tell, Tell, Tell

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, hashCode, isNull, isNull, limit, limit, malloc, maxBytes, maxPhysicalBytes, memchr, memcmp, memcpy, memmove, memset, offsetof, parseBytes, physicalBytes, position, position, put, realloc, referenceCount, releaseReference, retainReference, setNull, sizeof, toString, totalBytes, totalPhysicalBytes, withDeallocator, zero

Methods inherited from class java.lang.Object

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

Constructor Detail

ParquetInputWrapper

public ParquetInputWrapper(Pointer p)

Pointer cast constructor. Invokes Pointer.Pointer(Pointer).

ParquetInputWrapper

public ParquetInputWrapper(@UniquePtr
                           RandomAccessSource source)

Method Detail

Close

@ByVal
public Status Close()

Description copied from class: FileInterface

\brief Close the stream cleanly For writable streams, this will attempt to flush any pending data before releasing the underlying resource. After Close() is called, closed() returns true and the stream is not available for further operations.

Overrides:

Close in class FileInterface

Tell

@ByVal
public LongResult Tell()

Description copied from class: FileInterface

\brief Return the position in this stream

Overrides:

Tell in class FileInterface

closed

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

Description copied from class: FileInterface

\brief Return whether the stream is closed

Overrides:

closed in class FileInterface

Seek

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

Read

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

Read

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

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

GetSize

@ByVal
public LongResult GetSize()

Description copied from class: RandomAccessFile

Return the total file size in bytes.

Overrides:

GetSize in class RandomAccessFile