com.singlestore.jdbc.client.result.rowdecoder

Interface RowDecoder

All Known Implementing Classes:

BinaryRowDecoder, TextRowDecoder

public interface RowDecoder

Row decoder interface

Method Summary

Modifier and Type	Method and Description
<T> T	decode(Codec<T> codec, Calendar calendar, StandardReadableByteBuf rowBuf, MutableInt fieldLength, com.singlestore.jdbc.client.ColumnDecoder[] metadataList, MutableInt fieldIndex) Decode data according to data type.
boolean	decodeBoolean(com.singlestore.jdbc.client.ColumnDecoder[] metadataList, MutableInt fieldIndex, StandardReadableByteBuf rowBuf, MutableInt fieldLength) Decode data according to boolean.
byte	decodeByte(com.singlestore.jdbc.client.ColumnDecoder[] metadataList, MutableInt fieldIndex, StandardReadableByteBuf rowBuf, MutableInt fieldLength) Decode data according to byte.
Date	decodeDate(com.singlestore.jdbc.client.ColumnDecoder[] metadataList, MutableInt fieldIndex, StandardReadableByteBuf rowBuf, MutableInt fieldLength, Calendar cal) Decode data according to Date.
double	decodeDouble(com.singlestore.jdbc.client.ColumnDecoder[] metadataList, MutableInt fieldIndex, StandardReadableByteBuf rowBuf, MutableInt fieldLength) Decode data according to double.
float	decodeFloat(com.singlestore.jdbc.client.ColumnDecoder[] metadataList, MutableInt fieldIndex, StandardReadableByteBuf rowBuf, MutableInt fieldLength) Decode data according to float.
int	decodeInt(com.singlestore.jdbc.client.ColumnDecoder[] metadataList, MutableInt fieldIndex, StandardReadableByteBuf rowBuf, MutableInt fieldLength) Decode data according to int.
long	decodeLong(com.singlestore.jdbc.client.ColumnDecoder[] metadataList, MutableInt fieldIndex, StandardReadableByteBuf rowBuf, MutableInt fieldLength) Decode data according to long.
short	decodeShort(com.singlestore.jdbc.client.ColumnDecoder[] metadataList, MutableInt fieldIndex, StandardReadableByteBuf rowBuf, MutableInt fieldLength) Decode data according to short.
String	decodeString(com.singlestore.jdbc.client.ColumnDecoder[] metadataList, MutableInt fieldIndex, StandardReadableByteBuf rowBuf, MutableInt fieldLength) Decode data according to String.
Time	decodeTime(com.singlestore.jdbc.client.ColumnDecoder[] metadataList, MutableInt fieldIndex, StandardReadableByteBuf rowBuf, MutableInt fieldLength, Calendar cal) Decode data according to Time.
Timestamp	decodeTimestamp(com.singlestore.jdbc.client.ColumnDecoder[] metadataList, MutableInt fieldIndex, StandardReadableByteBuf rowBuf, MutableInt fieldLength, Calendar cal) Decode data according to Timestamp.
Object	defaultDecode(Configuration conf, com.singlestore.jdbc.client.ColumnDecoder[] metadataList, MutableInt fieldIndex, StandardReadableByteBuf rowBuf, MutableInt fieldLength) Decode data according to data type.
int	setPosition(int newIndex, MutableInt fieldIndex, int maxIndex, StandardReadableByteBuf rowBuf, byte[] nullBitmap, com.singlestore.jdbc.client.ColumnDecoder[] metadataList) Position the read index on buffer to data at indicated index.
boolean	wasNull(byte[] nullBitmap, MutableInt fieldIndex, MutableInt fieldLength) Indicate if last decoded value was null

Method Detail

wasNull

boolean wasNull(byte[] nullBitmap,
                MutableInt fieldIndex,
                MutableInt fieldLength)

Indicate if last decoded value was null

Parameters:

nullBitmap - null bitmap

fieldIndex - field index

fieldLength - field length

Returns:

true if last value was null

setPosition

int setPosition(int newIndex,
                MutableInt fieldIndex,
                int maxIndex,
                StandardReadableByteBuf rowBuf,
                byte[] nullBitmap,
                com.singlestore.jdbc.client.ColumnDecoder[] metadataList)

Position the read index on buffer to data at indicated index.

Parameters:

newIndex - new data index

fieldIndex - current field index

maxIndex - maximum index

rowBuf - row buffer

nullBitmap - null bitmap

metadataList - metadata list

Returns:

new index to read data

decode

<T> T decode(Codec<T> codec,
             Calendar calendar,
             StandardReadableByteBuf rowBuf,
             MutableInt fieldLength,
             com.singlestore.jdbc.client.ColumnDecoder[] metadataList,
             MutableInt fieldIndex)
      throws SQLException

Decode data according to data type.

Type Parameters:

T - Codec default return type

Parameters:

codec - current codec

calendar - calendar

rowBuf - row buffer

fieldLength - field length

metadataList - metadatas

fieldIndex - field index

Returns:

default object according to metadata

Throws:

SQLException - if any decoding error occurs

defaultDecode

Object defaultDecode(Configuration conf,
                     com.singlestore.jdbc.client.ColumnDecoder[] metadataList,
                     MutableInt fieldIndex,
                     StandardReadableByteBuf rowBuf,
                     MutableInt fieldLength)
              throws SQLException

Decode data according to data type.

Parameters:

conf - configuration

metadataList - metadata list

fieldIndex - field index

rowBuf - row buffer

fieldLength - field length

Returns:

data

Throws:

SQLException - if any decoding error occurs

decodeByte

byte decodeByte(com.singlestore.jdbc.client.ColumnDecoder[] metadataList,
                MutableInt fieldIndex,
                StandardReadableByteBuf rowBuf,
                MutableInt fieldLength)
         throws SQLException

Decode data according to byte.

Parameters:

metadataList - metadata list

fieldIndex - field index

rowBuf - row buffer

fieldLength - field length

Returns:

data

Throws:

SQLException - if data type cannot be decoded to byte value

decodeBoolean

boolean decodeBoolean(com.singlestore.jdbc.client.ColumnDecoder[] metadataList,
                      MutableInt fieldIndex,
                      StandardReadableByteBuf rowBuf,
                      MutableInt fieldLength)
               throws SQLException

Decode data according to boolean.

Parameters:

metadataList - metadata list

fieldIndex - field index

rowBuf - row buffer

fieldLength - field length

Returns:

data

Throws:

SQLException - if data type cannot be decoded to boolean value

decodeDate

Date decodeDate(com.singlestore.jdbc.client.ColumnDecoder[] metadataList,
                MutableInt fieldIndex,
                StandardReadableByteBuf rowBuf,
                MutableInt fieldLength,
                Calendar cal)
         throws SQLException

Decode data according to Date.

Parameters:

metadataList - metadata list

fieldIndex - field index

rowBuf - row buffer

fieldLength - field length

cal - calendar

Returns:

data

Throws:

SQLException - if data type cannot be decoded to Date value

decodeTime

Time decodeTime(com.singlestore.jdbc.client.ColumnDecoder[] metadataList,
                MutableInt fieldIndex,
                StandardReadableByteBuf rowBuf,
                MutableInt fieldLength,
                Calendar cal)
         throws SQLException

Decode data according to Time.

Parameters:

metadataList - metadata list

fieldIndex - field index

rowBuf - row buffer

fieldLength - field length

cal - calendar

Returns:

data

Throws:

SQLException - if data type cannot be decoded to Time value

decodeTimestamp

Timestamp decodeTimestamp(com.singlestore.jdbc.client.ColumnDecoder[] metadataList,
                          MutableInt fieldIndex,
                          StandardReadableByteBuf rowBuf,
                          MutableInt fieldLength,
                          Calendar cal)
                   throws SQLException

Decode data according to Timestamp.

Parameters:

metadataList - metadata list

fieldIndex - field index

rowBuf - row buffer

fieldLength - field length

cal - calendar

Returns:

data

Throws:

SQLException - if data type cannot be decoded to Timestamp value

decodeShort

short decodeShort(com.singlestore.jdbc.client.ColumnDecoder[] metadataList,
                  MutableInt fieldIndex,
                  StandardReadableByteBuf rowBuf,
                  MutableInt fieldLength)
           throws SQLException

Decode data according to short.

Parameters:

metadataList - metadata list

fieldIndex - field index

rowBuf - row buffer

fieldLength - field length

Returns:

data

Throws:

SQLException - if data type cannot be decoded to short value

decodeInt

int decodeInt(com.singlestore.jdbc.client.ColumnDecoder[] metadataList,
              MutableInt fieldIndex,
              StandardReadableByteBuf rowBuf,
              MutableInt fieldLength)
       throws SQLException

Decode data according to int.

Parameters:

metadataList - metadata list

fieldIndex - field index

rowBuf - row buffer

fieldLength - field length

Returns:

data

Throws:

SQLException - if data type cannot be decoded to int value

decodeString

String decodeString(com.singlestore.jdbc.client.ColumnDecoder[] metadataList,
                    MutableInt fieldIndex,
                    StandardReadableByteBuf rowBuf,
                    MutableInt fieldLength)
             throws SQLException

Decode data according to String.

Parameters:

metadataList - metadata list

fieldIndex - field index

rowBuf - row buffer

fieldLength - field length

Returns:

data

Throws:

SQLException - if data type cannot be decoded to String value

decodeLong

long decodeLong(com.singlestore.jdbc.client.ColumnDecoder[] metadataList,
                MutableInt fieldIndex,
                StandardReadableByteBuf rowBuf,
                MutableInt fieldLength)
         throws SQLException

Decode data according to long.

Parameters:

metadataList - metadata list

fieldIndex - field index

rowBuf - row buffer

fieldLength - field length

Returns:

data

Throws:

SQLException - if data type cannot be decoded to long value

decodeFloat

float decodeFloat(com.singlestore.jdbc.client.ColumnDecoder[] metadataList,
                  MutableInt fieldIndex,
                  StandardReadableByteBuf rowBuf,
                  MutableInt fieldLength)
           throws SQLException

Decode data according to float.

Parameters:

metadataList - metadata list

fieldIndex - field index

rowBuf - row buffer

fieldLength - field length

Returns:

data

Throws:

SQLException - if data type cannot be decoded to float value

decodeDouble

double decodeDouble(com.singlestore.jdbc.client.ColumnDecoder[] metadataList,
                    MutableInt fieldIndex,
                    StandardReadableByteBuf rowBuf,
                    MutableInt fieldLength)
             throws SQLException

Decode data according to double.

Parameters:

metadataList - metadata list

fieldIndex - field index

rowBuf - row buffer

fieldLength - field length

Returns:

data

Throws:

SQLException - if data type cannot be decoded to double value