com.xxdb.data

Interface Vector

All Superinterfaces:

Entity

All Known Implementing Classes:

AbstractVector, BasicAnyVector, BasicArrayVector, BasicBooleanVector, BasicByteVector, BasicComplexVector, BasicDateHourVector, BasicDateTimeVector, BasicDateVector, BasicDecimal32Vector, BasicDecimal64Vector, BasicDoubleVector, BasicDurationVector, BasicFloatVector, BasicInt128Vector, BasicIntVector, BasicIPAddrVector, BasicLongVector, BasicMinuteVector, BasicMonthVector, BasicNanoTimestampVector, BasicNanoTimeVector, BasicPointVector, BasicSecondVector, BasicShortVector, BasicStringVector, BasicSymbolVector, BasicTimestampVector, BasicTimeVector, BasicUuidVector

public interface Vector
extends Entity

Interface for DolphinDB data form: ARRAY, BIGARRAY

Nested Class Summary

Nested classes/interfaces inherited from interface com.xxdb.data.Entity

Entity.DATA_CATEGORY, Entity.DATA_FORM, Entity.DATA_TYPE, Entity.DURATION, Entity.PARTITION_TYPE

Field Summary

Fields

Modifier and Type	Field and Description
static int	COMPRESS_DELTA
static int	COMPRESS_LZ4
static int	DISPLAY_ROWS

Method Summary

Modifier and Type	Method and Description
int	asof(Scalar value)
Vector	combine(Vector vector)
void	deserialize(int start, int count, ExtendedDataInput in)
Scalar	get(int index)
Class<?>	getElementClass()
String	getString(int index)
Vector	getSubVector(int[] indices)
int	getUnitLength()
int	hashBucket(int index, int buckets)
boolean	isNull(int index)
void	serialize(int start, int count, ExtendedDataOutput out)
int	serialize(int indexStart, int offect, int targetNumElement, AbstractVector.NumElementAndPartial numElementAndPartial, ByteBuffer out)
void	set(int index, Scalar value)
void	setNull(int index)

Methods inherited from interface com.xxdb.data.Entity

columns, getDataCategory, getDataForm, getDataType, getString, isChart, isChunk, isDictionary, isMatrix, isPair, isScalar, isTable, isVector, rows, typeToCategory, write, writeCompressed

Field Detail

DISPLAY_ROWS

static final int DISPLAY_ROWS

See Also:

Constant Field Values

COMPRESS_LZ4

static final int COMPRESS_LZ4

See Also:

Constant Field Values

COMPRESS_DELTA

static final int COMPRESS_DELTA

See Also:

Constant Field Values

Method Detail

combine

Vector combine(Vector vector)

getSubVector

Vector getSubVector(int[] indices)

asof

int asof(Scalar value)

isNull

boolean isNull(int index)

setNull

void setNull(int index)

hashBucket

int hashBucket(int index,
               int buckets)

get

Scalar get(int index)

getString

String getString(int index)

set

void set(int index,
         Scalar value)
  throws Exception

Throws:

Exception

getElementClass

Class<?> getElementClass()

deserialize

void deserialize(int start,
                 int count,
                 ExtendedDataInput in)
          throws IOException

Throws:

IOException

serialize

void serialize(int start,
               int count,
               ExtendedDataOutput out)
        throws IOException

Throws:

IOException

getUnitLength

int getUnitLength()

serialize

int serialize(int indexStart,
              int offect,
              int targetNumElement,
              AbstractVector.NumElementAndPartial numElementAndPartial,
              ByteBuffer out)
       throws IOException

Throws:

IOException