Package org.apache.arrow.vector

Class FixedSizeBinaryVector

java.lang.Object

org.apache.arrow.vector.BaseValueVector

org.apache.arrow.vector.BaseFixedWidthVector

org.apache.arrow.vector.FixedSizeBinaryVector

All Implemented Interfaces:

Closeable, AutoCloseable, Iterable<ValueVector>, ElementAddressableVector, FieldVector, FixedWidthVector, ValueVector, VectorDefinitionSetter

public class FixedSizeBinaryVector
extends BaseFixedWidthVector

FixedSizeBinaryVector implements a fixed width vector of binary values which could be null. A validity buffer (bit vector) is maintained to track which elements in the vector are null.

Field Summary

Fields inherited from class org.apache.arrow.vector.BaseFixedWidthVector

actualValueCapacity, field, lastValueCapacity, validityBuffer, valueBuffer, valueCount

Fields inherited from class org.apache.arrow.vector.BaseValueVector

allocator, fieldReader, INITIAL_VALUE_ALLOCATION, MAX_ALLOCATION_SIZE, MAX_ALLOCATION_SIZE_PROPERTY

Constructor Summary

Constructors

Constructor	Description
FixedSizeBinaryVector(String name, BufferAllocator allocator, int byteWidth)	Instantiate a FixedSizeBinaryVector.
FixedSizeBinaryVector(String name, FieldType fieldType, BufferAllocator allocator)	Instantiate a FixedSizeBinaryVector.
FixedSizeBinaryVector(Field field, BufferAllocator allocator)	Instantiate a FixedSizeBinaryVector.

Method Summary

Modifier and Type	Method	Description
byte[]	get(int index)	Get the element at the given index from the vector.
void	get(int index, NullableFixedSizeBinaryHolder holder)	Get the element at the given index from the vector and sets the state in holder.
static byte[]	get(ArrowBuf buffer, int index, int byteWidth)	Given a data buffer, get the value stored at a particular position in the vector.
int	getByteWidth()
Types.MinorType	getMinorType()	Get minor type for this vector.
byte[]	getObject(int index)	Same as get(int).
protected FieldReader	getReaderImpl()	Each vector has a different reader that implements the FieldReader interface.
TransferPair	getTransferPair(String ref, BufferAllocator allocator)	Construct a TransferPair comprising this and a target vector of the same type.
TransferPair	getTransferPair(Field field, BufferAllocator allocator)	Construct a TransferPair comprising this and a target vector of the same type.
TransferPair	makeTransferPair(ValueVector to)	Construct a TransferPair with a desired target vector of the same type.
void	read(int index, ReusableBuffer<?> buffer)	Read the value at the given position to the given output buffer.
void	set(int index, byte[] value)	Sets the value at index to the provided one.
void	set(int index, int isSet, byte[] value)	Sets the value if isSet is positive, otherwise sets the index to null/invalid.
void	set(int index, int isSet, ArrowBuf buffer)	Set the element at the given index to the given value.
void	set(int index, ArrowBuf buffer)	Set the element at the given index to the given value.
void	set(int index, FixedSizeBinaryHolder holder)	Set the variable length element at the specified index to the data buffer supplied in the holder.
void	set(int index, NullableFixedSizeBinaryHolder holder)	Set the variable length element at the specified index to the data buffer supplied in the holder.
void	setSafe(int index, byte[] value)	Same as set(int, byte[]) but reallocates if index is larger than capacity.
void	setSafe(int index, int isSet, byte[] value)
void	setSafe(int index, int isSet, ArrowBuf buffer)	Same as set(int, ArrowBuf) except that it handles the case when index is greater than or equal to existing value capacity BaseFixedWidthVector.getValueCapacity().
void	setSafe(int index, ArrowBuf buffer)	Same as set(int, ArrowBuf) except that it handles the case when index is greater than or equal to existing value capacity BaseFixedWidthVector.getValueCapacity().
void	setSafe(int index, FixedSizeBinaryHolder holder)	Same as set(int, FixedSizeBinaryHolder) except that it handles the case where index and length of new element are beyond the existing capacity of the vector.
void	setSafe(int index, NullableFixedSizeBinaryHolder holder)	Same as set(int, NullableFixedSizeBinaryHolder) except that it handles the case where index and length of new element are beyond the existing capacity of the vector.
void	validateScalars()	Validate the scalar values held by this vector.

Methods inherited from class org.apache.arrow.vector.BaseFixedWidthVector

accept, allocateNew, allocateNew, allocateNewSafe, clear, close, copyFrom, copyFromSafe, decrementAllocationMonitor, getBuffers, getBufferSize, getBufferSizeFor, getChildrenFromFields, getDataBuffer, getDataBufferAddress, getDataPointer, getDataPointer, getField, getFieldBuffers, getFieldInnerVectors, getName, getNullCount, getOffsetBuffer, getOffsetBufferAddress, getTransferPair, getTransferPair, getTransferPair, getTypeWidth, getValidityBuffer, getValidityBufferAddress, getValidityBufferValueCapacity, getValueBufferValueCapacity, getValueCapacity, getValueCount, handleSafe, hashCode, hashCode, incrementAllocationMonitor, initializeChildrenFromFields, isNull, isSafe, isSet, loadFieldBuffers, reAlloc, refreshValueCapacity, reset, set, set, setIndexDefined, setInitialCapacity, setNull, setSafe, setSafe, setValueCount, splitAndTransferTo, transferTo, zeroVector

Methods inherited from class org.apache.arrow.vector.BaseValueVector

checkBufRefs, getAllocator, getReader, getValidityBufferSizeFromCount, iterator, releaseBuffer, toString, transferBuffer

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.arrow.vector.FieldVector

exportBuffer, exportCDataBuffers

Methods inherited from interface java.lang.Iterable

forEach, iterator, spliterator

Methods inherited from interface org.apache.arrow.vector.ValueVector

getAllocator, getReader, validate, validateFull

Constructor Details

FixedSizeBinaryVector

public FixedSizeBinaryVector(String name,
 BufferAllocator allocator,
 int byteWidth)

Instantiate a FixedSizeBinaryVector. This doesn't allocate any memory for the data in vector.

Parameters:

name - name of the vector

allocator - allocator for memory management.

byteWidth - byte width of the binary values

FixedSizeBinaryVector

public FixedSizeBinaryVector(String name,
 FieldType fieldType,
 BufferAllocator allocator)

Instantiate a FixedSizeBinaryVector. This doesn't allocate any memory for the data in vector.

Parameters:

name - name of the vector

fieldType - type of Field materialized by this vector

allocator - allocator for memory management.

FixedSizeBinaryVector

public FixedSizeBinaryVector(Field field,
 BufferAllocator allocator)

Instantiate a FixedSizeBinaryVector. This doesn't allocate any memory for the data in vector.

Parameters:

field - field materialized by this vector

allocator - allocator for memory management.

Method Details

getReaderImpl

protected FieldReader getReaderImpl()

Description copied from class: BaseValueVector

Each vector has a different reader that implements the FieldReader interface. Overridden methods must make sure to return the correct concrete reader implementation.

Specified by:

getReaderImpl in class BaseValueVector

Returns:

Returns a lambda that initializes a reader when called.

getMinorType

public Types.MinorType getMinorType()

Get minor type for this vector. The vector holds values belonging to a particular type.

Returns:

Types.MinorType

get

public byte[] get(int index)

Get the element at the given index from the vector.

Parameters:

index - position of element

Returns:

element at given index

read

public void read(int index,
 ReusableBuffer<?> buffer)

Read the value at the given position to the given output buffer. The caller is responsible for checking for nullity first.

Parameters:

index - position of element.

buffer - the buffer to write into.

get

public void get(int index,
 NullableFixedSizeBinaryHolder holder)

Get the element at the given index from the vector and sets the state in holder. If element at given index is null, holder.isSet will be zero.

Parameters:

index - position of element

holder - nullable holder to carry the buffer

getObject

public byte[] getObject(int index)

Same as get(int).

Parameters:

index - position of element

Returns:

element at given index

getByteWidth

public int getByteWidth()

set

public void set(int index,
 byte[] value)

Sets the value at index to the provided one.

setSafe

public void setSafe(int index,
 byte[] value)

Same as set(int, byte[]) but reallocates if index is larger than capacity.

set

public void set(int index,
 int isSet,
 byte[] value)

Sets the value if isSet is positive, otherwise sets the index to null/invalid.

setSafe

public void setSafe(int index,
 int isSet,
 byte[] value)

set

public void set(int index,
 ArrowBuf buffer)

Set the element at the given index to the given value.

Parameters:

index - position of element

buffer - ArrowBuf containing binary value.

setSafe

public void setSafe(int index,
 ArrowBuf buffer)

Same as set(int, ArrowBuf) except that it handles the case when index is greater than or equal to existing value capacity BaseFixedWidthVector.getValueCapacity().

Parameters:

index - position of element

buffer - ArrowBuf containing binary value.

set

public void set(int index,
 int isSet,
 ArrowBuf buffer)

Set the element at the given index to the given value.

Parameters:

index - position of element

buffer - ArrowBuf containing binary value.

setSafe

public void setSafe(int index,
 int isSet,
 ArrowBuf buffer)

Same as set(int, ArrowBuf) except that it handles the case when index is greater than or equal to existing value capacity BaseFixedWidthVector.getValueCapacity().

Parameters:

index - position of element

buffer - ArrowBuf containing binary value.

set

public void set(int index,
 FixedSizeBinaryHolder holder)

Set the variable length element at the specified index to the data buffer supplied in the holder.

Parameters:

index - position of the element to set

holder - holder that carries data buffer.

setSafe

public void setSafe(int index,
 FixedSizeBinaryHolder holder)

Same as set(int, FixedSizeBinaryHolder) except that it handles the case where index and length of new element are beyond the existing capacity of the vector.

Parameters:

index - position of the element to set

holder - holder that carries data buffer.

set

public void set(int index,
 NullableFixedSizeBinaryHolder holder)

Set the variable length element at the specified index to the data buffer supplied in the holder.

Parameters:

index - position of the element to set

holder - holder that carries data buffer.

setSafe

public void setSafe(int index,
 NullableFixedSizeBinaryHolder holder)

Same as set(int, NullableFixedSizeBinaryHolder) except that it handles the case where index and length of new element are beyond the existing capacity of the vector.

Parameters:

index - position of the element to set

holder - holder that carries data buffer.

get

public static byte[] get(ArrowBuf buffer,
 int index,
 int byteWidth)

Given a data buffer, get the value stored at a particular position in the vector.

This method should not be used externally.

Parameters:

buffer - data buffer

index - position of the element.

Returns:

value stored at the index.

validateScalars

public void validateScalars()

Description copied from class: BaseFixedWidthVector

Validate the scalar values held by this vector.

Overrides:

validateScalars in class BaseFixedWidthVector

getTransferPair

public TransferPair getTransferPair(String ref,
 BufferAllocator allocator)

Construct a TransferPair comprising this and a target vector of the same type.

Specified by:

getTransferPair in interface ValueVector

Specified by:

getTransferPair in class BaseFixedWidthVector

Parameters:

ref - name of the target vector

allocator - allocator for the target vector

Returns:

TransferPair

getTransferPair

public TransferPair getTransferPair(Field field,
 BufferAllocator allocator)

Construct a TransferPair comprising this and a target vector of the same type.

Specified by:

getTransferPair in interface ValueVector

Specified by:

getTransferPair in class BaseFixedWidthVector

Parameters:

field - Field object used by the target vector

allocator - allocator for the target vector

Returns:

TransferPair

makeTransferPair

public TransferPair makeTransferPair(ValueVector to)

Construct a TransferPair with a desired target vector of the same type.

Parameters:

to - target vector

Returns:

TransferPair