org.bytedeco.arrow

Class ReadOptions

java.lang.Object

org.bytedeco.javacpp.Pointer

org.bytedeco.arrow.ReadOptions

All Implemented Interfaces:

AutoCloseable

@Namespace(value="arrow::csv")
 @Properties(inherit=arrow.class)
public class ReadOptions
extends Pointer

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
ReadOptions() Default native constructor.
ReadOptions(long size) Native array allocator.
ReadOptions(Pointer p) Pointer cast constructor.

Method Summary

Modifier and Type	Method and Description
boolean	autogenerate_column_names() Whether to autogenerate column names if column_names is empty.
ReadOptions	autogenerate_column_names(boolean setter)
int	block_size() Block size we request from the IO layer; also determines the size of chunks when use_threads is true
ReadOptions	block_size(int setter)
StringVector	column_names() Column names for the target table.
ReadOptions	column_names(StringVector setter)
static ReadOptions	Defaults() Create read options with default values
ReadOptions	getPointer(long i)
ReadOptions	position(long position)
int	skip_rows() Number of header rows to skip (not including the row of column names, if any)
ReadOptions	skip_rows(int setter)
boolean	use_threads() Whether to use the global CPU thread pool
ReadOptions	use_threads(boolean setter)

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

ReadOptions

public ReadOptions()

Default native constructor.

ReadOptions

public ReadOptions(long size)

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

ReadOptions

public ReadOptions(Pointer p)

Pointer cast constructor. Invokes Pointer(Pointer).

Method Detail

position

public ReadOptions position(long position)

Overrides:

position in class Pointer

getPointer

public ReadOptions getPointer(long i)

Overrides:

getPointer in class Pointer

use_threads

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

Whether to use the global CPU thread pool

use_threads

public ReadOptions use_threads(boolean setter)

block_size

public int block_size()

Block size we request from the IO layer; also determines the size of chunks when use_threads is true

block_size

public ReadOptions block_size(int setter)

skip_rows

public int skip_rows()

Number of header rows to skip (not including the row of column names, if any)

skip_rows

public ReadOptions skip_rows(int setter)

column_names

@ByRef
public StringVector column_names()

Column names for the target table. If empty, fall back on autogenerate_column_names.

column_names

public ReadOptions column_names(StringVector setter)

autogenerate_column_names

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

Whether to autogenerate column names if column_names is empty. If true, column names will be of the form "f0", "f1"... If false, column names will be read from the first CSV row after skip_rows.

autogenerate_column_names

public ReadOptions autogenerate_column_names(boolean setter)

Defaults

@ByVal
public static ReadOptions Defaults()

Create read options with default values