com.singlestore.jdbc.plugin.codec

Class DoubleCodec

java.lang.Object

com.singlestore.jdbc.plugin.codec.DoubleCodec

All Implemented Interfaces:

Codec<Double>

public class DoubleCodec
extends Object
implements Codec<Double>

Field Summary

Fields

Modifier and Type	Field and Description
static DoubleCodec	INSTANCE default instance

Constructor Summary

Constructors

Constructor and Description
DoubleCodec()

Method Summary

Modifier and Type	Method and Description
boolean	canDecode(com.singlestore.jdbc.client.ColumnDecoder 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(com.singlestore.jdbc.client.ReadableByteBuf buf, MutableInt length, com.singlestore.jdbc.client.ColumnDecoder column, Calendar cal) Decode from a mysql packet binary encoded a value to codec java type
Double	decodeText(com.singlestore.jdbc.client.ReadableByteBuf buf, MutableInt length, com.singlestore.jdbc.client.ColumnDecoder column, Calendar cal) Decode from a mysql packet text encoded a value to codec java type
void	encodeBinary(Writer encoder, Object value, Calendar cal, Long maxLength) Binary encode value to writer
void	encodeText(Writer encoder, com.singlestore.jdbc.client.Context context, Object value, Calendar cal, Long maxLen) Text encode value to writer
int	getApproximateTextProtocolLength(Object value) Approximate length in bytes.
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 com.singlestore.jdbc.plugin.Codec

canEncodeLongData, encodeBinaryAsString, 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(com.singlestore.jdbc.client.ColumnDecoder 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

getApproximateTextProtocolLength

public int getApproximateTextProtocolLength(Object value)
                                     throws SQLException

Description copied from interface: Codec

Approximate length in bytes.

Specified by:

getApproximateTextProtocolLength in interface Codec<Double>

Parameters:

value - to calculate

Returns:

value length in bytes

Throws:

SQLException

decodeText

public Double decodeText(com.singlestore.jdbc.client.ReadableByteBuf buf,
                         MutableInt length,
                         com.singlestore.jdbc.client.ColumnDecoder 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

decodeBinary

public Double decodeBinary(com.singlestore.jdbc.client.ReadableByteBuf buf,
                           MutableInt length,
                           com.singlestore.jdbc.client.ColumnDecoder 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

encodeText

public void encodeText(Writer encoder,
                       com.singlestore.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