Package org.mariadb.jdbc.plugin.codec

Class DoubleCodec

java.lang.Object

org.mariadb.jdbc.plugin.codec.DoubleCodec

All Implemented Interfaces:

Codec<Double>

public class DoubleCodec
extends Object
implements Codec<Double>

Double codec

Field Summary

Fields

Modifier and Type	Field	Description
static DoubleCodec	INSTANCE	default instance

Constructor Summary

Constructors

Constructor	Description
DoubleCodec()

Method Summary

Modifier and Type	Method	Description
boolean	canDecode(org.mariadb.jdbc.client.Column column, Class<?> type)	If codec can decode this a server datatype to a java class type
boolean	canEncode(Object value)	Can Codec encode the java object type
String	className()	Codec native type
Double	decodeBinary(org.mariadb.jdbc.client.ReadableByteBuf buf, int length, org.mariadb.jdbc.client.Column column, Calendar cal)	Decode from a mysql packet binary encoded a value to codec java type
double	decodeBinaryDouble(org.mariadb.jdbc.client.ReadableByteBuf buf, int length, org.mariadb.jdbc.client.Column column)	Decode Double from binary data
Double	decodeText(org.mariadb.jdbc.client.ReadableByteBuf buf, int length, org.mariadb.jdbc.client.Column column, Calendar cal)	Decode from a mysql packet text encoded a value to codec java type
double	decodeTextDouble(org.mariadb.jdbc.client.ReadableByteBuf buf, int length, org.mariadb.jdbc.client.Column column)	Decode Double from text data
void	encodeBinary(Writer encoder, Object value, Calendar cal, Long maxLength)	Binary encode value to writer
void	encodeText(Writer encoder, org.mariadb.jdbc.client.Context context, Object value, Calendar cal, Long maxLen)	Text encode value to writer
int	getBinaryEncodeType()	Return server encoding data type

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.mariadb.jdbc.plugin.Codec

canEncodeLongData, encodeData, encodeLongData

Field Detail

INSTANCE

public static final DoubleCodec INSTANCE

default instance

Constructor Detail

DoubleCodec

public DoubleCodec()

Method Detail

className

public String className()

Description copied from interface: Codec

Codec native type

Specified by:

className in interface Codec<Double>

Returns:

code native return type

canDecode

public boolean canDecode(org.mariadb.jdbc.client.Column column,
                         Class<?> type)

Description copied from interface: Codec

If codec can decode this a server datatype to a java class type

Specified by:

canDecode in interface Codec<Double>

Parameters:

column - server datatype

type - java return class

Returns:

true if codec can decode it

canEncode

public boolean canEncode(Object value)

Description copied from interface: Codec

Can Codec encode the java object type

Specified by:

canEncode in interface Codec<Double>

Parameters:

value - java object type

Returns:

true if codec can encode java type

decodeText

public Double decodeText(org.mariadb.jdbc.client.ReadableByteBuf buf,
                         int length,
                         org.mariadb.jdbc.client.Column column,
                         Calendar cal)
                  throws SQLDataException

Description copied from interface: Codec

Decode from a mysql packet text encoded a value to codec java type

Specified by:

decodeText in interface Codec<Double>

Parameters:

buf - mysql packet buffer

length - encoded value length

column - server column metadata

cal - calendar

Returns:

decoded value

Throws:

SQLDataException - if unexpected error occurs during decoding

decodeTextDouble

public double decodeTextDouble(org.mariadb.jdbc.client.ReadableByteBuf buf,
                               int length,
                               org.mariadb.jdbc.client.Column column)
                        throws SQLDataException

Decode Double from text data

Parameters:

buf - packet buffer

length - data length

column - column meta

Returns:

double value

Throws:

SQLDataException - if decoding error

decodeBinary

public Double decodeBinary(org.mariadb.jdbc.client.ReadableByteBuf buf,
                           int length,
                           org.mariadb.jdbc.client.Column column,
                           Calendar cal)
                    throws SQLDataException

Description copied from interface: Codec

Decode from a mysql packet binary encoded a value to codec java type

Specified by:

decodeBinary in interface Codec<Double>

Parameters:

buf - mysql packet buffer

length - encoded value length

column - server column metadata

cal - calendar

Returns:

decoded value

Throws:

SQLDataException - if unexpected error occurs during decoding

decodeBinaryDouble

public double decodeBinaryDouble(org.mariadb.jdbc.client.ReadableByteBuf buf,
                                 int length,
                                 org.mariadb.jdbc.client.Column column)
                          throws SQLDataException

Decode Double from binary data

Parameters:

buf - packet buffer

length - data length

column - column meta

Returns:

double value

Throws:

SQLDataException - if decoding error

encodeText

public void encodeText(Writer encoder,
                       org.mariadb.jdbc.client.Context context,
                       Object value,
                       Calendar cal,
                       Long maxLen)
                throws IOException

Description copied from interface: Codec

Text encode value to writer

Specified by:

encodeText in interface Codec<Double>

Parameters:

encoder - writer

context - connection context

value - value to encode

cal - calendar

maxLen - maximum value length

Throws:

IOException - if any socket error occurs

encodeBinary

public void encodeBinary(Writer encoder,
                         Object value,
                         Calendar cal,
                         Long maxLength)
                  throws IOException

Description copied from interface: Codec

Binary encode value to writer

Specified by:

encodeBinary in interface Codec<Double>

Parameters:

encoder - writer

value - value to encode

cal - calendar

maxLength - maximum value length

Throws:

IOException - if any socket error occurs

getBinaryEncodeType

public int getBinaryEncodeType()

Description copied from interface: Codec

Return server encoding data type

Specified by:

getBinaryEncodeType in interface Codec<Double>

Returns:

server encoding data type