org.bytedeco.gandiva

Class SelectionVector

java.lang.Object

org.bytedeco.javacpp.Pointer

org.bytedeco.gandiva.SelectionVector

All Implemented Interfaces:

AutoCloseable

@Namespace(value="gandiva")
 @Properties(inherit=gandiva.class)
public class SelectionVector
extends Pointer

\brief Selection Vector : vector of indices in a row-batch for a selection, backed by an arrow-array.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SelectionVector.Mode

Nested classes/interfaces inherited from class org.bytedeco.javacpp.Pointer

Pointer.CustomDeallocator, Pointer.Deallocator, Pointer.NativeDeallocator, Pointer.ReferenceCounter

Field Summary

Fields

Modifier and Type	Field and Description
static int	kNumModes

Fields inherited from class org.bytedeco.javacpp.Pointer

address, capacity, limit, position

Constructor Summary

Constructors

Constructor and Description
SelectionVector(Pointer p) Pointer cast constructor.

Method Summary

Modifier and Type	Method and Description
ArrowBuffer	GetBuffer() Get the underlying arrow buffer.
long	GetIndex(long index) Get the value at a given index.
long	GetMaxSlots() The maximum slots (capacity) of the selection vector.
long	GetMaxSupportedValue()
SelectionVector.Mode	GetMode() Mode of SelectionVector
long	GetNumSlots() The number of slots (size) of the selection vector.
static IntPointer	kAllModes()
static SelectionVector.Mode	kAllModes(int i)
static int	kNumModes()
static Status	MakeImmutableInt16(long num_slots, ArrowBuffer buffer, SelectionVector selection_vector) \brief creates a selection vector with pre populated buffer.
static Status	MakeImmutableInt32(long num_slots, ArrowBuffer buffer, SelectionVector selection_vector) \brief creates a selection vector with pre populated buffer.
static Status	MakeInt16(long max_slots, ArrowBuffer buffer, SelectionVector selection_vector) \brief make selection vector with int16 type records.
static Status	MakeInt16(long max_slots, MemoryPool pool, SelectionVector selection_vector)
static Status	MakeInt32(long max_slots, ArrowBuffer buffer, SelectionVector selection_vector) \brief make selection vector with int32 type records.
static Status	MakeInt32(long max_slots, MemoryPool pool, SelectionVector selection_vector) \brief make selection vector with int32 type records.
static Status	MakeInt64(long max_slots, ArrowBuffer buffer, SelectionVector selection_vector) \brief make selection vector with int64 type records.
static Status	MakeInt64(long max_slots, MemoryPool pool, SelectionVector selection_vector) \brief make selection vector with int64 type records.
Status	PopulateFromBitMap(byte[] bitmap, long bitmap_size, long max_bitmap_index)
Status	PopulateFromBitMap(ByteBuffer bitmap, long bitmap_size, long max_bitmap_index)
Status	PopulateFromBitMap(BytePointer bitmap, long bitmap_size, long max_bitmap_index) \brief populate selection vector for all the set bits in the bitmap.
void	SetIndex(long index, long value) Set the value at a given index.
void	SetNumSlots(long num_slots) Set the number of slots in the selection vector.
Array	ToArray() Convert to arrow-array.

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

Field Detail

kNumModes

public static final int kNumModes

Constructor Detail

SelectionVector

public SelectionVector(Pointer p)

Pointer cast constructor. Invokes Pointer(Pointer).

Method Detail

kNumModes

@MemberGetter
public static int kNumModes()

kAllModes

@MemberGetter
public static SelectionVector.Mode kAllModes(int i)

kAllModes

@MemberGetter
 @Cast(value="gandiva::SelectionVector::Mode*")
public static IntPointer kAllModes()

GetIndex

@Cast(value="uint64_t")
public long GetIndex(@Cast(value="int64_t")
                                              long index)

Get the value at a given index.

SetIndex

public void SetIndex(@Cast(value="int64_t")
                     long index,
                     @Cast(value="uint64_t")
                     long value)

Set the value at a given index.

GetMaxSupportedValue

@Cast(value="uint64_t")
public long GetMaxSupportedValue()

GetMaxSlots

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

The maximum slots (capacity) of the selection vector.

GetNumSlots

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

The number of slots (size) of the selection vector.

SetNumSlots

public void SetNumSlots(@Cast(value="int64_t")
                        long num_slots)

Set the number of slots in the selection vector.

ToArray

@SharedPtr
 @Cast(value={"","std::shared_ptr<arrow::Array>"})
public Array ToArray()

Convert to arrow-array.

GetBuffer

@ByRef
public ArrowBuffer GetBuffer()

Get the underlying arrow buffer.

GetMode

public SelectionVector.Mode GetMode()

Mode of SelectionVector

PopulateFromBitMap

@ByVal
public Status PopulateFromBitMap(@Cast(value="const uint8_t*")
                                         BytePointer bitmap,
                                         @Cast(value="int64_t")
                                         long bitmap_size,
                                         @Cast(value="int64_t")
                                         long max_bitmap_index)

\brief populate selection vector for all the set bits in the bitmap.

Parameters:

bitmap - [in] the bitmap

bitmap_size - [in] size of the bitmap in bytes

max_bitmap_index - [in] max valid index in bitmap (can be lesser than capacity in the bitmap, due to alignment/padding).

PopulateFromBitMap

@ByVal
public Status PopulateFromBitMap(@Cast(value="const uint8_t*")
                                         ByteBuffer bitmap,
                                         @Cast(value="int64_t")
                                         long bitmap_size,
                                         @Cast(value="int64_t")
                                         long max_bitmap_index)

PopulateFromBitMap

@ByVal
public Status PopulateFromBitMap(@Cast(value="const uint8_t*")
                                         byte[] bitmap,
                                         @Cast(value="int64_t")
                                         long bitmap_size,
                                         @Cast(value="int64_t")
                                         long max_bitmap_index)

MakeInt16

@ByVal
public static Status MakeInt16(@Cast(value="int64_t")
                                       long max_slots,
                                       @SharedPtr
                                       ArrowBuffer buffer,
                                       @SharedPtr
                                       SelectionVector selection_vector)

\brief make selection vector with int16 type records.

Parameters:

max_slots - [in] max number of slots

buffer - [in] buffer sized to accommodate max_slots

selection_vector - [out] selection vector backed by 'buffer'

MakeInt16

@ByVal
public static Status MakeInt16(@Cast(value="int64_t")
                                       long max_slots,
                                       MemoryPool pool,
                                       @SharedPtr
                                       SelectionVector selection_vector)

Parameters:

max_slots - [in] max number of slots

pool - [in] memory pool to allocate buffer

selection_vector - [out] selection vector backed by a buffer allocated from the pool.

MakeImmutableInt16

@ByVal
public static Status MakeImmutableInt16(@Cast(value="int64_t")
                                                long num_slots,
                                                @SharedPtr
                                                ArrowBuffer buffer,
                                                @SharedPtr
                                                SelectionVector selection_vector)

\brief creates a selection vector with pre populated buffer.

Parameters:

num_slots - [in] size of the selection vector

buffer - [in] pre-populated buffer

selection_vector - [out] selection vector backed by 'buffer'

MakeInt32

@ByVal
public static Status MakeInt32(@Cast(value="int64_t")
                                       long max_slots,
                                       @SharedPtr
                                       ArrowBuffer buffer,
                                       @SharedPtr
                                       SelectionVector selection_vector)

\brief make selection vector with int32 type records.

Parameters:

max_slots - [in] max number of slots

buffer - [in] buffer sized to accommodate max_slots

selection_vector - [out] selection vector backed by 'buffer'

MakeInt32

@ByVal
public static Status MakeInt32(@Cast(value="int64_t")
                                       long max_slots,
                                       MemoryPool pool,
                                       @SharedPtr
                                       SelectionVector selection_vector)

\brief make selection vector with int32 type records.

Parameters:

max_slots - [in] max number of slots

pool - [in] memory pool to allocate buffer

selection_vector - [out] selection vector backed by a buffer allocated from the pool.

MakeImmutableInt32

@ByVal
public static Status MakeImmutableInt32(@Cast(value="int64_t")
                                                long num_slots,
                                                @SharedPtr
                                                ArrowBuffer buffer,
                                                @SharedPtr
                                                SelectionVector selection_vector)

\brief creates a selection vector with pre populated buffer.

Parameters:

num_slots - [in] size of the selection vector

buffer - [in] pre-populated buffer

selection_vector - [out] selection vector backed by 'buffer'

MakeInt64

@ByVal
public static Status MakeInt64(@Cast(value="int64_t")
                                       long max_slots,
                                       @SharedPtr
                                       ArrowBuffer buffer,
                                       @SharedPtr
                                       SelectionVector selection_vector)

\brief make selection vector with int64 type records.

Parameters:

max_slots - [in] max number of slots

buffer - [in] buffer sized to accommodate max_slots

selection_vector - [out] selection vector backed by 'buffer'

MakeInt64

@ByVal
public static Status MakeInt64(@Cast(value="int64_t")
                                       long max_slots,
                                       MemoryPool pool,
                                       @SharedPtr
                                       SelectionVector selection_vector)

\brief make selection vector with int64 type records.

Parameters:

max_slots - [in] max number of slots

pool - [in] memory pool to allocate buffer

selection_vector - [out] selection vector backed by a buffer allocated from the pool.