net.snowflake.client.core.arrow

Class VarCharConverter

java.lang.Object

net.snowflake.client.core.arrow.VarCharConverter

All Implemented Interfaces:

ArrowVectorConverter

public class VarCharConverter
extends Object

Convert Arrow VarCharVector to Java types

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	AbstractArrowVectorConverter.TimestampOperationNotAvailableException Thrown when a Snowflake timestamp cannot be manipulated in Java due to size limitations.

Field Summary

Fields

Modifier and Type	Field and Description
protected int	columnIndex
protected DataConversionContext	context
static String	FIELD_NAME_EPOCH Field names of the struct vectors used by timestamp
static String	FIELD_NAME_FRACTION
static String	FIELD_NAME_TIME_ZONE_INDEX
protected String	logicalTypeStr snowflake logical type of the target arrow vector
protected TimeZone	sessionTimeZone
protected boolean	treatNTZasUTC

Constructor Summary

Constructors

Constructor and Description
VarCharConverter(org.apache.arrow.vector.ValueVector valueVector, int columnIndex, DataConversionContext context)

Method Summary

Modifier and Type	Method and Description
boolean	isNull(int index) Determine whether source value in arrow vector is null value or not
void	setSessionTimeZone(TimeZone tz)
void	setTreatNTZAsUTC(boolean isUTC)
BigDecimal	toBigDecimal(int index) Convert value in arrow vector to BigDecimal
boolean	toBoolean(int index) Convert value in arrow vector to boolean data
byte	toByte(int rowIndex) Convert value in arrow vector to byte data
byte[]	toBytes(int index) Convert value in arrow vector to byte array
Date	toDate(int index, TimeZone jvmTz, boolean useDateFormat) Convert value in arrow vector to Date
double	toDouble(int index) Convert value in arrow vector to double data
float	toFloat(int index) Convert value in arrow vector to float data
int	toInt(int index) Convert value in arrow vector to int data
long	toLong(int index) Convert value in arrow vector to long data
Object	toObject(int index) Convert value in arrow vector to Object
short	toShort(int index) Convert value in arrow vector to short data
String	toString(int index) Convert value in arrow vector to string
Time	toTime(int index) Convert value in arrow vector to Time
Timestamp	toTimestamp(int index, TimeZone tz) Convert value in arrow vector to Timestamp

Methods inherited from class java.lang.Object

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

Field Detail

logicalTypeStr

protected String logicalTypeStr

snowflake logical type of the target arrow vector

context

protected DataConversionContext context

columnIndex

protected int columnIndex

treatNTZasUTC

protected boolean treatNTZasUTC

sessionTimeZone

protected TimeZone sessionTimeZone

FIELD_NAME_EPOCH

public static final String FIELD_NAME_EPOCH

Field names of the struct vectors used by timestamp

See Also:

Constant Field Values

FIELD_NAME_TIME_ZONE_INDEX

public static final String FIELD_NAME_TIME_ZONE_INDEX

See Also:

Constant Field Values

FIELD_NAME_FRACTION

public static final String FIELD_NAME_FRACTION

See Also:

Constant Field Values

Constructor Detail

VarCharConverter

public VarCharConverter(org.apache.arrow.vector.ValueVector valueVector,
                        int columnIndex,
                        DataConversionContext context)

Method Detail

toString

public String toString(int index)

Description copied from interface: ArrowVectorConverter

Convert value in arrow vector to string

Specified by:

toString in interface ArrowVectorConverter

Parameters:

index - index of the value to be converted in the vector

Returns:

string converted from arrow vector

toBytes

public byte[] toBytes(int index)

Description copied from interface: ArrowVectorConverter

Convert value in arrow vector to byte array

Specified by:

toBytes in interface ArrowVectorConverter

Parameters:

index - index of the value to be converted in the vector

Returns:

byte array converted from arrow vector

toObject

public Object toObject(int index)

Description copied from interface: ArrowVectorConverter

Convert value in arrow vector to Object

Specified by:

toObject in interface ArrowVectorConverter

Parameters:

index - index of the value to be converted in the vector

Returns:

Object converted from arrow vector

toShort

public short toShort(int index)
              throws SFException

Description copied from interface: ArrowVectorConverter

Convert value in arrow vector to short data

Specified by:

toShort in interface ArrowVectorConverter

Parameters:

index - index of the value to be converted in the vector

Returns:

short data converted from arrow vector

Throws:

SFException - invalid data conversion

toInt

public int toInt(int index)
          throws SFException

Description copied from interface: ArrowVectorConverter

Convert value in arrow vector to int data

Specified by:

toInt in interface ArrowVectorConverter

Parameters:

index - index of the value to be converted in the vector

Returns:

int data converted from arrow vector

Throws:

SFException - invalid data conversion

toLong

public long toLong(int index)
            throws SFException

Description copied from interface: ArrowVectorConverter

Convert value in arrow vector to long data

Specified by:

toLong in interface ArrowVectorConverter

Parameters:

index - index of the value to be converted in the vector

Returns:

long data converted from arrow vector

Throws:

SFException - invalid data conversion

toFloat

public float toFloat(int index)
              throws SFException

Description copied from interface: ArrowVectorConverter

Convert value in arrow vector to float data

Specified by:

toFloat in interface ArrowVectorConverter

Parameters:

index - index of the value to be converted in the vector

Returns:

float data converted from arrow vector

Throws:

SFException - invalid data conversion

toDouble

public double toDouble(int index)
                throws SFException

Description copied from interface: ArrowVectorConverter

Convert value in arrow vector to double data

Specified by:

toDouble in interface ArrowVectorConverter

Parameters:

index - index of the value to be converted in the vector

Returns:

double data converted from arrow vector

Throws:

SFException - invalid data conversion

toBigDecimal

public BigDecimal toBigDecimal(int index)
                        throws SFException

Description copied from interface: ArrowVectorConverter

Convert value in arrow vector to BigDecimal

Specified by:

toBigDecimal in interface ArrowVectorConverter

Parameters:

index - index of the value to be converted in the vector

Returns:

BigDecimal converted from arrow vector

Throws:

SFException - invalid data conversion

toBoolean

public boolean toBoolean(int index)
                  throws SFException

Description copied from interface: ArrowVectorConverter

Convert value in arrow vector to boolean data

Specified by:

toBoolean in interface ArrowVectorConverter

Parameters:

index - index of the value to be converted in the vector

Returns:

boolean data converted from arrow vector

Throws:

SFException - invalid data conversion

toByte

public byte toByte(int rowIndex)
            throws SFException

Description copied from interface: ArrowVectorConverter

Convert value in arrow vector to byte data

Specified by:

toByte in interface ArrowVectorConverter

Parameters:

rowIndex - index of the value to be converted in the vector

Returns:

byte data converted from arrow vector

Throws:

SFException - invalid data conversion

toDate

public Date toDate(int index,
                   TimeZone jvmTz,
                   boolean useDateFormat)
            throws SFException

Description copied from interface: ArrowVectorConverter

Convert value in arrow vector to Date

Specified by:

toDate in interface ArrowVectorConverter

Parameters:

index - index of the value to be converted in the vector

jvmTz - JVM timezone

useDateFormat - boolean value to check whether to change timezone or not

Returns:

Date converted from arrow vector

Throws:

SFException - invalid data conversion

toTime

public Time toTime(int index)
            throws SFException

Description copied from interface: ArrowVectorConverter

Convert value in arrow vector to Time

Specified by:

toTime in interface ArrowVectorConverter

Parameters:

index - index of the value to be converted in the vector

Returns:

Time converted from arrow vector

Throws:

SFException - invalid data conversion

toTimestamp

public Timestamp toTimestamp(int index,
                             TimeZone tz)
                      throws SFException

Description copied from interface: ArrowVectorConverter

Convert value in arrow vector to Timestamp

Specified by:

toTimestamp in interface ArrowVectorConverter

Parameters:

index - index of the value to be converted in the vector

tz - time zone

Returns:

Timestamp converted from arrow vector

Throws:

SFException - invalid data conversion

setTreatNTZAsUTC

public void setTreatNTZAsUTC(boolean isUTC)

Specified by:

setTreatNTZAsUTC in interface ArrowVectorConverter

Parameters:

isUTC - true or false value of whether NTZ timestamp should be set to UTC

setSessionTimeZone

public void setSessionTimeZone(TimeZone tz)

Specified by:

setSessionTimeZone in interface ArrowVectorConverter

isNull

public boolean isNull(int index)

Description copied from interface: ArrowVectorConverter

Determine whether source value in arrow vector is null value or not

Specified by:

isNull in interface ArrowVectorConverter

Parameters:

index - index of value to be checked

Returns:

true if null value otherwise false