org.bytedeco.arrow

Class ExecContext

java.lang.Object

org.bytedeco.javacpp.Pointer

org.bytedeco.arrow.ExecContext

All Implemented Interfaces:

AutoCloseable

@Namespace(value="arrow::compute")
 @NoOffset
 @Properties(inherit=arrow.class)
public class ExecContext
extends Pointer

\brief Context for expression-global variables and options used by function evaluation

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
ExecContext()
ExecContext(long size) Native array allocator.
ExecContext(MemoryPool pool, FunctionRegistry func_registry)
ExecContext(Pointer p) Pointer cast constructor.

Method Summary

Modifier and Type	Method and Description
CpuInfo	cpu_info()
long	exec_chunksize()
FunctionRegistry	func_registry() \brief The FunctionRegistry for looking up functions by name and selecting kernels for execution.
ExecContext	getPointer(long i)
MemoryPool	memory_pool() \brief The MemoryPool used for allocations, default is default_memory_pool().
ExecContext	position(long position)
boolean	preallocate_contiguous() \brief If contiguous preallocations should be used when doing chunked execution as specified by exec_chunksize().
void	set_exec_chunksize(long chunksize)
void	set_preallocate_contiguous(boolean preallocate)
void	set_use_threads()
void	set_use_threads(boolean use_threads) \brief Set whether to use multiple threads for function execution.
boolean	use_threads() \brief If true, then utilize multiple threads where relevant for function execution.

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, offsetAddress, 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

ExecContext

public ExecContext(Pointer p)

Pointer cast constructor. Invokes Pointer(Pointer).

ExecContext

public ExecContext(long size)

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

ExecContext

public ExecContext(MemoryPool pool,
                   FunctionRegistry func_registry)

ExecContext

public ExecContext()

Method Detail

position

public ExecContext position(long position)

Overrides:

position in class Pointer

getPointer

public ExecContext getPointer(long i)

Overrides:

getPointer in class Pointer

memory_pool

public MemoryPool memory_pool()

\brief The MemoryPool used for allocations, default is default_memory_pool().

cpu_info

public CpuInfo cpu_info()

func_registry

public FunctionRegistry func_registry()

\brief The FunctionRegistry for looking up functions by name and selecting kernels for execution. Defaults to the library-global function registry provided by GetFunctionRegistry.

set_exec_chunksize

public void set_exec_chunksize(@Cast(value="int64_t")
                               long chunksize)

exec_chunksize

@Cast(value="int64_t")
public long exec_chunksize()

set_use_threads

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

\brief Set whether to use multiple threads for function execution. This is not yet used.

set_use_threads

public void set_use_threads()

use_threads

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

\brief If true, then utilize multiple threads where relevant for function execution. This is not yet used.

set_preallocate_contiguous

public void set_preallocate_contiguous(@Cast(value="bool")
                                       boolean preallocate)

preallocate_contiguous

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

\brief If contiguous preallocations should be used when doing chunked execution as specified by exec_chunksize(). See set_preallocate_contiguous() for more information.