org.bytedeco.arrow

Class Tensor

java.lang.Object

org.bytedeco.javacpp.Pointer

org.bytedeco.arrow.Tensor

All Implemented Interfaces:

AutoCloseable

@Namespace(value="arrow")
 @NoOffset
 @Properties(inherit=arrow.class)
public class Tensor
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
Tensor(DataType type, ArrowBuffer data, long[] shape)
Tensor(DataType type, ArrowBuffer data, long[] shape, long[] strides)
Tensor(DataType type, ArrowBuffer data, long[] shape, long[] strides, StringVector dim_names)
Tensor(DataType type, ArrowBuffer data, LongBuffer shape)
Tensor(DataType type, ArrowBuffer data, LongBuffer shape, LongBuffer strides)
Tensor(DataType type, ArrowBuffer data, LongBuffer shape, LongBuffer strides, StringVector dim_names)
Tensor(DataType type, ArrowBuffer data, LongPointer shape) Constructor with no dimension names or strides, data assumed to be row-major
Tensor(DataType type, ArrowBuffer data, LongPointer shape, LongPointer strides) Constructor with non-negative strides
Tensor(DataType type, ArrowBuffer data, LongPointer shape, LongPointer strides, StringVector dim_names) Constructor with non-negative strides and dimension names
Tensor(Pointer p) Pointer cast constructor.

Method Summary

Modifier and Type	Method and Description
long	CalculateValueOffset(long[] index)
static long	CalculateValueOffset(long[] strides, long[] index)
long	CalculateValueOffset(LongBuffer index)
static long	CalculateValueOffset(LongBuffer strides, LongBuffer index)
long	CalculateValueOffset(LongPointer index)
static long	CalculateValueOffset(LongPointer strides, LongPointer index) Return the offset of the given index on the given strides
LongResult	CountNonZero() Compute the number of non-zero values in the tensor
Status	CountNonZero(long[] result) Deprecated.
Status	CountNonZero(LongBuffer result) Deprecated.
Status	CountNonZero(LongPointer result) Deprecated.
ArrowBuffer	data()
String	dim_name(int i)
StringVector	dim_names()
boolean	Equals(Tensor other)
boolean	Equals(Tensor other, EqualOptions arg1)
boolean	is_column_major() AKA "Fortran order"
boolean	is_contiguous() Either row major or column major
boolean	is_mutable() Return true if the underlying data buffer is mutable
boolean	is_row_major() AKA "C order"
static TensorResult	Make(DataType type, ArrowBuffer data, long[] shape)
static TensorResult	Make(DataType type, ArrowBuffer data, long[] shape, long[] strides, StringVector dim_names)
static TensorResult	Make(DataType type, ArrowBuffer data, LongBuffer shape)
static TensorResult	Make(DataType type, ArrowBuffer data, LongBuffer shape, LongBuffer strides, StringVector dim_names)
static TensorResult	Make(DataType type, ArrowBuffer data, LongPointer shape)
static TensorResult	Make(DataType type, ArrowBuffer data, LongPointer shape, LongPointer strides, StringVector dim_names) \brief Create a Tensor with full parameters This factory function will return Status::Invalid when the parameters are inconsistent
int	ndim()
BytePointer	raw_data()
BytePointer	raw_mutable_data()
LongPointer	shape()
long	size() Total number of value cells in the tensor
LongPointer	strides()
int	type_id()
DataType	type()

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

Constructor Detail

Tensor

public Tensor(Pointer p)

Pointer cast constructor. Invokes Pointer(Pointer).

Tensor

public Tensor(@SharedPtr @Cast(value={"","std::shared_ptr<arrow::DataType>"})
              DataType type,
              @SharedPtr
              ArrowBuffer data,
              @Cast(value="int64_t*") @StdVector
              LongPointer shape)

Constructor with no dimension names or strides, data assumed to be row-major

Tensor

public Tensor(@SharedPtr @Cast(value={"","std::shared_ptr<arrow::DataType>"})
              DataType type,
              @SharedPtr
              ArrowBuffer data,
              @Cast(value="int64_t*") @StdVector
              LongBuffer shape)

Tensor

public Tensor(@SharedPtr @Cast(value={"","std::shared_ptr<arrow::DataType>"})
              DataType type,
              @SharedPtr
              ArrowBuffer data,
              @Cast(value="int64_t*") @StdVector
              long[] shape)

Tensor

public Tensor(@SharedPtr @Cast(value={"","std::shared_ptr<arrow::DataType>"})
              DataType type,
              @SharedPtr
              ArrowBuffer data,
              @Cast(value="int64_t*") @StdVector
              LongPointer shape,
              @Cast(value="int64_t*") @StdVector
              LongPointer strides)

Constructor with non-negative strides

Tensor

public Tensor(@SharedPtr @Cast(value={"","std::shared_ptr<arrow::DataType>"})
              DataType type,
              @SharedPtr
              ArrowBuffer data,
              @Cast(value="int64_t*") @StdVector
              LongBuffer shape,
              @Cast(value="int64_t*") @StdVector
              LongBuffer strides)

Tensor

public Tensor(@SharedPtr @Cast(value={"","std::shared_ptr<arrow::DataType>"})
              DataType type,
              @SharedPtr
              ArrowBuffer data,
              @Cast(value="int64_t*") @StdVector
              long[] shape,
              @Cast(value="int64_t*") @StdVector
              long[] strides)

Tensor

public Tensor(@SharedPtr @Cast(value={"","std::shared_ptr<arrow::DataType>"})
              DataType type,
              @SharedPtr
              ArrowBuffer data,
              @Cast(value="int64_t*") @StdVector
              LongPointer shape,
              @Cast(value="int64_t*") @StdVector
              LongPointer strides,
              @Const @ByRef
              StringVector dim_names)

Constructor with non-negative strides and dimension names

Tensor

public Tensor(@SharedPtr @Cast(value={"","std::shared_ptr<arrow::DataType>"})
              DataType type,
              @SharedPtr
              ArrowBuffer data,
              @Cast(value="int64_t*") @StdVector
              LongBuffer shape,
              @Cast(value="int64_t*") @StdVector
              LongBuffer strides,
              @Const @ByRef
              StringVector dim_names)

Tensor

public Tensor(@SharedPtr @Cast(value={"","std::shared_ptr<arrow::DataType>"})
              DataType type,
              @SharedPtr
              ArrowBuffer data,
              @Cast(value="int64_t*") @StdVector
              long[] shape,
              @Cast(value="int64_t*") @StdVector
              long[] strides,
              @Const @ByRef
              StringVector dim_names)

Method Detail

Make

@ByVal
public static TensorResult Make(@SharedPtr @Cast(value={"","std::shared_ptr<arrow::DataType>"})
                                        DataType type,
                                        @SharedPtr
                                        ArrowBuffer data,
                                        @Cast(value="int64_t*") @StdVector
                                        LongPointer shape,
                                        @Cast(value="int64_t*") @StdVector
                                        LongPointer strides,
                                        @Const @ByRef(nullValue="std::vector<std::string>({})")
                                        StringVector dim_names)

\brief Create a Tensor with full parameters This factory function will return Status::Invalid when the parameters are inconsistent

Parameters:

type - [in] The data type of the tensor values

data - [in] The buffer of the tensor content

shape - [in] The shape of the tensor

strides - [in] The strides of the tensor (if this is empty, the data assumed to be row-major)

dim_names - [in] The names of the tensor dimensions

Make

@ByVal
public static TensorResult Make(@SharedPtr @Cast(value={"","std::shared_ptr<arrow::DataType>"})
                                        DataType type,
                                        @SharedPtr
                                        ArrowBuffer data,
                                        @Cast(value="int64_t*") @StdVector
                                        LongPointer shape)

Make

@ByVal
public static TensorResult Make(@SharedPtr @Cast(value={"","std::shared_ptr<arrow::DataType>"})
                                        DataType type,
                                        @SharedPtr
                                        ArrowBuffer data,
                                        @Cast(value="int64_t*") @StdVector
                                        LongBuffer shape,
                                        @Cast(value="int64_t*") @StdVector
                                        LongBuffer strides,
                                        @Const @ByRef(nullValue="std::vector<std::string>({})")
                                        StringVector dim_names)

Make

@ByVal
public static TensorResult Make(@SharedPtr @Cast(value={"","std::shared_ptr<arrow::DataType>"})
                                        DataType type,
                                        @SharedPtr
                                        ArrowBuffer data,
                                        @Cast(value="int64_t*") @StdVector
                                        LongBuffer shape)

Make

@ByVal
public static TensorResult Make(@SharedPtr @Cast(value={"","std::shared_ptr<arrow::DataType>"})
                                        DataType type,
                                        @SharedPtr
                                        ArrowBuffer data,
                                        @Cast(value="int64_t*") @StdVector
                                        long[] shape,
                                        @Cast(value="int64_t*") @StdVector
                                        long[] strides,
                                        @Const @ByRef(nullValue="std::vector<std::string>({})")
                                        StringVector dim_names)

Make

@ByVal
public static TensorResult Make(@SharedPtr @Cast(value={"","std::shared_ptr<arrow::DataType>"})
                                        DataType type,
                                        @SharedPtr
                                        ArrowBuffer data,
                                        @Cast(value="int64_t*") @StdVector
                                        long[] shape)

type

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

data

@SharedPtr
public ArrowBuffer data()

raw_data

@Cast(value="const uint8_t*")
public BytePointer raw_data()

raw_mutable_data

@Cast(value="uint8_t*")
public BytePointer raw_mutable_data()

shape

@Cast(value="int64_t*")
 @StdVector
public LongPointer shape()

strides

@Cast(value="int64_t*")
 @StdVector
public LongPointer strides()

ndim

public int ndim()

dim_names

@Const
 @ByRef
public StringVector dim_names()

dim_name

@StdString
public String dim_name(int i)

size

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

Total number of value cells in the tensor

is_mutable

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

Return true if the underlying data buffer is mutable

is_contiguous

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

Either row major or column major

is_row_major

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

AKA "C order"

is_column_major

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

AKA "Fortran order"

type_id

@Cast(value="arrow::Type::type")
public int type_id()

Equals

@Cast(value="bool")
public boolean Equals(@Const @ByRef
                                           Tensor other,
                                           @Const @ByRef(nullValue="arrow::EqualOptions::Defaults()")
                                           EqualOptions arg1)

Equals

@Cast(value="bool")
public boolean Equals(@Const @ByRef
                                           Tensor other)

CountNonZero

@ByVal
public LongResult CountNonZero()

Compute the number of non-zero values in the tensor

CountNonZero

@Deprecated
 @ByVal
public Status CountNonZero(@Cast(value="int64_t*")
                                                 LongPointer result)

Deprecated.

Compute the number of non-zero values in the tensor

CountNonZero

@Deprecated
 @ByVal
public Status CountNonZero(@Cast(value="int64_t*")
                                                 LongBuffer result)

Deprecated.

CountNonZero

@Deprecated
 @ByVal
public Status CountNonZero(@Cast(value="int64_t*")
                                                 long[] result)

Deprecated.

CalculateValueOffset

@Cast(value="int64_t")
public static long CalculateValueOffset(@Cast(value="int64_t*") @StdVector
                                                                LongPointer strides,
                                                                @Cast(value="int64_t*") @StdVector
                                                                LongPointer index)

Return the offset of the given index on the given strides

CalculateValueOffset

@Cast(value="int64_t")
public static long CalculateValueOffset(@Cast(value="int64_t*") @StdVector
                                                                LongBuffer strides,
                                                                @Cast(value="int64_t*") @StdVector
                                                                LongBuffer index)

CalculateValueOffset

@Cast(value="int64_t")
public static long CalculateValueOffset(@Cast(value="int64_t*") @StdVector
                                                                long[] strides,
                                                                @Cast(value="int64_t*") @StdVector
                                                                long[] index)

CalculateValueOffset

@Cast(value="int64_t")
public long CalculateValueOffset(@Cast(value="int64_t*") @StdVector
                                                         LongPointer index)

CalculateValueOffset

@Cast(value="int64_t")
public long CalculateValueOffset(@Cast(value="int64_t*") @StdVector
                                                         LongBuffer index)

CalculateValueOffset

@Cast(value="int64_t")
public long CalculateValueOffset(@Cast(value="int64_t*") @StdVector
                                                         long[] index)