org.bytedeco.arrow

Class ArrayKernel

java.lang.Object

org.bytedeco.javacpp.Pointer

org.bytedeco.arrow.Kernel

org.bytedeco.arrow.ArrayKernel

All Implemented Interfaces:

AutoCloseable

Direct Known Subclasses:

ScalarKernel, VectorKernel

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

\brief Common kernel base data structure for ScalarKernel and VectorKernel. It is called "ArrayKernel" in that the functions generally output array values (as opposed to scalar values in the case of aggregate functions).

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
ArrayKernel()
ArrayKernel(InputType in_types, OutputType out_type, Pointer exec)
ArrayKernel(InputType in_types, OutputType out_type, Pointer exec, Pointer init)
ArrayKernel(KernelSignature sig, Pointer exec)
ArrayKernel(KernelSignature sig, Pointer exec, Pointer init)
ArrayKernel(long size) Native array allocator.
ArrayKernel(Pointer p) Pointer cast constructor.

Method Summary

Modifier and Type	Method and Description
boolean	can_write_into_slices() \brief Writing execution results into larger contiguous allocations requires that the kernel be able to write into sliced output ArrayData*, including sliced output validity bitmaps.
ArrayKernel	can_write_into_slices(boolean setter)
Pointer	exec() \brief Perform a single invocation of this kernel.
ArrayKernel	exec(Pointer setter)
ArrayKernel	getPointer(long i)
ArrayKernel	position(long position)

Methods inherited from class org.bytedeco.arrow.Kernel

init, init, parallelizable, parallelizable, signature, signature, simd_level, simd_level

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

ArrayKernel

public ArrayKernel(Pointer p)

Pointer cast constructor. Invokes Pointer(Pointer).

ArrayKernel

public ArrayKernel(long size)

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

ArrayKernel

public ArrayKernel()

ArrayKernel

public ArrayKernel(@SharedPtr @Cast(value={"","std::shared_ptr<arrow::compute::KernelSignature>"})
                   KernelSignature sig,
                   @ByVal @Cast(value="arrow::compute::ArrayKernelExec*")
                   Pointer exec,
                   @ByVal(nullValue="arrow::compute::KernelInit(nullptr)") @Cast(value="arrow::compute::KernelInit*")
                   Pointer init)

ArrayKernel

public ArrayKernel(@SharedPtr @Cast(value={"","std::shared_ptr<arrow::compute::KernelSignature>"})
                   KernelSignature sig,
                   @ByVal @Cast(value="arrow::compute::ArrayKernelExec*")
                   Pointer exec)

ArrayKernel

public ArrayKernel(@StdVector
                   InputType in_types,
                   @ByVal
                   OutputType out_type,
                   @ByVal @Cast(value="arrow::compute::ArrayKernelExec*")
                   Pointer exec,
                   @ByVal(nullValue="arrow::compute::KernelInit(nullptr)") @Cast(value="arrow::compute::KernelInit*")
                   Pointer init)

ArrayKernel

public ArrayKernel(@StdVector
                   InputType in_types,
                   @ByVal
                   OutputType out_type,
                   @ByVal @Cast(value="arrow::compute::ArrayKernelExec*")
                   Pointer exec)

Method Detail

position

public ArrayKernel position(long position)

Overrides:

position in class Kernel

getPointer

public ArrayKernel getPointer(long i)

Overrides:

getPointer in class Kernel

exec

@ByRef
 @Cast(value="arrow::compute::ArrayKernelExec*")
public Pointer exec()

\brief Perform a single invocation of this kernel. Depending on the implementation, it may only write into preallocated memory, while in some cases it will allocate its own memory. Any required state is managed through the KernelContext.

exec

public ArrayKernel exec(Pointer setter)

can_write_into_slices

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

\brief Writing execution results into larger contiguous allocations requires that the kernel be able to write into sliced output ArrayData*, including sliced output validity bitmaps. Some kernel implementations may not be able to do this, so setting this to false disables this functionality.

can_write_into_slices

public ArrayKernel can_write_into_slices(boolean setter)