org.apache.arrow.vector

クラス TimeStampVector

java.lang.Object

org.apache.arrow.vector.BaseValueVector

org.apache.arrow.vector.BaseFixedWidthVector

org.apache.arrow.vector.TimeStampVector

すべての実装されたインタフェース:

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

直系の既知のサブクラス:

TimeStampMicroTZVector, TimeStampMicroVector, TimeStampMilliTZVector, TimeStampMilliVector, TimeStampNanoTZVector, TimeStampNanoVector, TimeStampSecTZVector, TimeStampSecVector

public abstract class TimeStampVector
extends BaseFixedWidthVector

TimeStampVector is an abstract interface for fixed width vector (8 bytes) of timestamp values which could be null. A validity buffer (bit vector) is maintained to track which elements in the vector are null.

ネストされたクラスのサマリー

ネストされたクラス

修飾子とタイプ	クラスと説明
class	TimeStampVector.TransferImpl * vector transfer * *

フィールドのサマリー

フィールド

修飾子とタイプ	フィールドと説明
protected static byte	TYPE_WIDTH

クラスから継承されたフィールド org.apache.arrow.vector.BaseFixedWidthVector

field, validityAllocationSizeInBytes, validityBuffer, valueAllocationSizeInBytes, valueBuffer, valueCount

クラスから継承されたフィールド org.apache.arrow.vector.BaseValueVector

allocator, INITIAL_VALUE_ALLOCATION, MAX_ALLOCATION_SIZE, MAX_ALLOCATION_SIZE_PROPERTY, name

コンストラクタのサマリー

コンストラクタ

コンストラクタと説明
TimeStampVector(String name, FieldType fieldType, BufferAllocator allocator) Instantiate a TimeStampVector.

メソッドのサマリー

修飾子とタイプ	メソッドと説明
void	copyFrom(int fromIndex, int thisIndex, TimeStampVector from) Copy a cell value from a particular index in source vector to a particular position in this vector
void	copyFromSafe(int fromIndex, int thisIndex, TimeStampVector from) Same as copyFromSafe(int, int, TimeStampVector) except that it handles the case when the capacity of the vector needs to be expanded before copy.
static long	get(ArrowBuf buffer, int index) Given a data buffer, get the value stored at a particular position in the vector.
long	get(int index) Get the element at the given index from the vector.
void	set(int index, int isSet, long value) Store the given value at a particular position in the vector. isSet indicates whether the value is NULL or not.
void	set(int index, long value) Set the element at the given index to the given value.
void	setNull(int index) Set the element at the given index to null.
void	setSafe(int index, int isSet, long value) Same as set(int, int, long) except that it handles the case when index is greater than or equal to current value capacity of the vector.
void	setSafe(int index, long value) Same as set(int, long) except that it handles the case when index is greater than or equal to existing value capacity BaseFixedWidthVector.getValueCapacity().
protected void	setValue(int index, long value) * vector value setter methods * *

クラスから継承されたメソッド org.apache.arrow.vector.BaseFixedWidthVector

allocateNew, allocateNew, allocateNewSafe, clear, close, decrementAllocationMonitor, getBuffers, getBufferSize, getBufferSizeFor, getChildrenFromFields, getDataBuffer, getDataBufferAddress, getField, getFieldBuffers, getFieldInnerVectors, getNullCount, getOffsetBuffer, getOffsetBufferAddress, getTransferPair, getTransferPair, getTransferPair, getValidityBuffer, getValidityBufferAddress, getValueCapacity, getValueCount, handleSafe, incrementAllocationMonitor, initializeChildrenFromFields, isNull, isSafe, isSet, loadFieldBuffers, reAlloc, reset, set, set, setIndexDefined, setInitialCapacity, setSafe, setSafe, setValueCount, splitAndTransferTo, transferTo, zeroVector

クラスから継承されたメソッド org.apache.arrow.vector.BaseValueVector

checkBufRefs, compareTypes, getAllocator, getValidityBufferSizeFromCount, iterator, releaseBuffer, toString

クラスから継承されたメソッド java.lang.Object

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

インタフェースから継承されたメソッド org.apache.arrow.vector.ValueVector

getAllocator, getMinorType, getObject, getReader, makeTransferPair

インタフェースから継承されたメソッド java.lang.Iterable

forEach, iterator, spliterator

フィールドの詳細

TYPE_WIDTH

protected static final byte TYPE_WIDTH

関連項目:

定数フィールド値

コンストラクタの詳細

TimeStampVector

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

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

パラメータ:

name - name of the vector

fieldType - type of Field materialized by this vector

allocator - allocator for memory management.

メソッドの詳細

get

public long get(int index)
         throws IllegalStateException

Get the element at the given index from the vector.

パラメータ:

index - position of element

戻り値:

element at given index

例外:

IllegalStateException

copyFrom

public void copyFrom(int fromIndex,
                     int thisIndex,
                     TimeStampVector from)

Copy a cell value from a particular index in source vector to a particular position in this vector

パラメータ:

fromIndex - position to copy from in source vector

thisIndex - position to copy to in this vector

from - source vector

copyFromSafe

public void copyFromSafe(int fromIndex,
                         int thisIndex,
                         TimeStampVector from)

Same as copyFromSafe(int, int, TimeStampVector) except that it handles the case when the capacity of the vector needs to be expanded before copy.

パラメータ:

fromIndex - position to copy from in source vector

thisIndex - position to copy to in this vector

from - source vector

setValue

protected void setValue(int index,
                        long value)

* vector value setter methods * *

set

public void set(int index,
                long value)

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

パラメータ:

index - position of element

value - value of element

setSafe

public void setSafe(int index,
                    long value)

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

パラメータ:

index - position of element

value - value of element

setNull

public void setNull(int index)

Set the element at the given index to null.

パラメータ:

index - position of element

set

public void set(int index,
                int isSet,
                long value)

Store the given value at a particular position in the vector. isSet indicates whether the value is NULL or not.

パラメータ:

index - position of the new value

isSet - 0 for NULL value, 1 otherwise

value - element value

setSafe

public void setSafe(int index,
                    int isSet,
                    long value)

Same as set(int, int, long) except that it handles the case when index is greater than or equal to current value capacity of the vector.

パラメータ:

index - position of the new value

isSet - 0 for NULL value, 1 otherwise

value - element value

get

public static long get(ArrowBuf buffer,
                       int index)

Given a data buffer, get the value stored at a particular position in the vector. This method should not be used externally.

パラメータ:

buffer - data buffer

index - position of the element.

戻り値:

value stored at the index.