com.xxdb.data

Class BasicDoubleVector

java.lang.Object

com.xxdb.data.AbstractEntity

com.xxdb.data.AbstractVector

com.xxdb.data.BasicDoubleVector

All Implemented Interfaces:

Entity, Vector

public class BasicDoubleVector
extends AbstractVector

Corresponds to DolphinDB double vector

Nested Class Summary

Nested classes/interfaces inherited from class com.xxdb.data.AbstractVector

AbstractVector.NumElementAndPartial, AbstractVector.Offect

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 inherited from class com.xxdb.data.AbstractVector

buf, BUF_SIZE, compressedMethod

Fields inherited from interface com.xxdb.data.Vector

COMPRESS_DELTA, COMPRESS_LZ4, DISPLAY_ROWS

Constructor Summary

Constructors

Modifier	Constructor and Description
	BasicDoubleVector(double[] array)
	BasicDoubleVector(double[] array, boolean copy)
protected	BasicDoubleVector(Entity.DATA_FORM df, ExtendedDataInput in)
protected	BasicDoubleVector(Entity.DATA_FORM df, int size)
	BasicDoubleVector(int size)
	BasicDoubleVector(List<Double> list)

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)
Entity.DATA_CATEGORY	getDataCategory()
Entity.DATA_TYPE	getDataType()
double	getDouble(int index)
Class<?>	getElementClass()
Vector	getSubVector(int[] indices)
int	getUnitLength()
boolean	isNull(int index)
int	rows()
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	setDouble(int index, double value)
void	setNull(int index)
ByteBuffer	writeVectorToBuffer(ByteBuffer buffer)
protected void	writeVectorToOutputStream(ExtendedDataOutput out)

Methods inherited from class com.xxdb.data.AbstractVector

checkCompressedMethod, columns, getDataForm, getString, getString, getUnitLength, hashBucket, setCompressedMethod, write, writeCompressed

Methods inherited from class com.xxdb.data.AbstractEntity

getDataCategory, isChart, isChunk, isDictionary, isMatrix, isPair, isScalar, isTable, isVector

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.xxdb.data.Entity

isChart, isChunk, isDictionary, isMatrix, isPair, isScalar, isTable, isVector, typeToCategory

Constructor Detail

BasicDoubleVector

public BasicDoubleVector(int size)

BasicDoubleVector

public BasicDoubleVector(List<Double> list)

BasicDoubleVector

public BasicDoubleVector(double[] array)

BasicDoubleVector

public BasicDoubleVector(double[] array,
                         boolean copy)

BasicDoubleVector

protected BasicDoubleVector(Entity.DATA_FORM df,
                            int size)

BasicDoubleVector

protected BasicDoubleVector(Entity.DATA_FORM df,
                            ExtendedDataInput in)
                     throws IOException

Throws:

IOException

Method Detail

deserialize

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

Specified by:

deserialize in interface Vector

Overrides:

deserialize in class AbstractVector

Throws:

IOException

serialize

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

Throws:

IOException

get

public Scalar get(int index)

getSubVector

public Vector getSubVector(int[] indices)

getDouble

public double getDouble(int index)

set

public void set(int index,
                Scalar value)
         throws Exception

Throws:

Exception

setDouble

public void setDouble(int index,
                      double value)

combine

public Vector combine(Vector vector)

isNull

public boolean isNull(int index)

setNull

public void setNull(int index)

getDataCategory

public Entity.DATA_CATEGORY getDataCategory()

getDataType

public Entity.DATA_TYPE getDataType()

getElementClass

public Class<?> getElementClass()

rows

public int rows()

writeVectorToOutputStream

protected void writeVectorToOutputStream(ExtendedDataOutput out)
                                  throws IOException

Specified by:

writeVectorToOutputStream in class AbstractVector

Throws:

IOException

getUnitLength

public int getUnitLength()

Specified by:

getUnitLength in interface Vector

Specified by:

getUnitLength in class AbstractVector

writeVectorToBuffer

public ByteBuffer writeVectorToBuffer(ByteBuffer buffer)
                               throws IOException

Overrides:

writeVectorToBuffer in class AbstractVector

Throws:

IOException

asof

public int asof(Scalar value)

serialize

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

Specified by:

serialize in interface Vector

Overrides:

serialize in class AbstractVector

Throws:

IOException