org.bytedeco.arrow_dataset

Class ScanContext

java.lang.Object

org.bytedeco.javacpp.Pointer

org.bytedeco.arrow_dataset.ScanContext

All Implemented Interfaces:

AutoCloseable

@Namespace(value="arrow::dataset")
 @Properties(inherit=arrow_dataset.class)
public class ScanContext
extends Pointer

\brief Shared state for a Scan operation

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

Method Summary

Modifier and Type	Method and Description
ScanContext	getPointer(long i)
MemoryPool	pool() A pool from which materialized and scanned arrays will be allocated.
ScanContext	pool(MemoryPool setter)
ScanContext	position(long position)
TaskGroup	TaskGroup() Return a threaded or serial TaskGroup according to use_threads.
boolean	use_threads() Indicate if the Scanner should make use of a ThreadPool.
ScanContext	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

ScanContext

public ScanContext()

Default native constructor.

ScanContext

public ScanContext(long size)

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

ScanContext

public ScanContext(Pointer p)

Pointer cast constructor. Invokes Pointer(Pointer).

Method Detail

position

public ScanContext position(long position)

Overrides:

position in class Pointer

getPointer

public ScanContext getPointer(long i)

Overrides:

getPointer in class Pointer

pool

public MemoryPool pool()

A pool from which materialized and scanned arrays will be allocated.

pool

public ScanContext pool(MemoryPool setter)

use_threads

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

Indicate if the Scanner should make use of a ThreadPool.

use_threads

public ScanContext use_threads(boolean setter)

TaskGroup

@SharedPtr
public TaskGroup TaskGroup()

Return a threaded or serial TaskGroup according to use_threads.