Class TextRowDecoder

java.lang.Object

org.mariadb.jdbc.client.result.rowdecoder.TextRowDecoder

All Implemented Interfaces:

RowDecoder

public class TextRowDecoder
extends Object
implements RowDecoder

TEXT rows decoder

Constructor Summary

Constructors

Constructor	Description
TextRowDecoder()

Method Summary

Modifier and Type	Method	Description
private static int	checkFieldLength(int fieldLength, ReadableByteBuf rowBuf)	The field length is server-declared: column decoders allocate from it, so it must fit in the row packet before any of them run.
<T> T	decode(Codec<T> codec, Calendar cal, ReadableByteBuf rowBuf, MutableInt fieldLength, ColumnDecoder[] metadataList, int fieldIndex, Context context)	Decode data according to data type.
boolean	decodeBoolean(ColumnDecoder[] metadataList, int fieldIndex, ReadableByteBuf rowBuf, MutableInt fieldLength)	Decode data according to boolean.
byte	decodeByte(ColumnDecoder[] metadataList, int fieldIndex, ReadableByteBuf rowBuf, MutableInt fieldLength)	Decode data according to byte.
Date	decodeDate(ColumnDecoder[] metadataList, int fieldIndex, ReadableByteBuf rowBuf, MutableInt fieldLength, Calendar cal, Context context)	Decode data according to Date.
double	decodeDouble(ColumnDecoder[] metadataList, int fieldIndex, ReadableByteBuf rowBuf, MutableInt fieldLength)	Decode data according to double.
float	decodeFloat(ColumnDecoder[] metadataList, int fieldIndex, ReadableByteBuf rowBuf, MutableInt fieldLength)	Decode data according to float.
int	decodeInt(ColumnDecoder[] metadataList, int fieldIndex, ReadableByteBuf rowBuf, MutableInt fieldLength)	Decode data according to int.
long	decodeLong(ColumnDecoder[] metadataList, int fieldIndex, ReadableByteBuf rowBuf, MutableInt fieldLength)	Decode data according to long.
short	decodeShort(ColumnDecoder[] metadataList, int fieldIndex, ReadableByteBuf rowBuf, MutableInt fieldLength)	Decode data according to short.
String	decodeString(ColumnDecoder[] metadataList, int fieldIndex, ReadableByteBuf rowBuf, MutableInt fieldLength, Context context)	Decode data according to String.
Time	decodeTime(ColumnDecoder[] metadataList, int fieldIndex, ReadableByteBuf rowBuf, MutableInt fieldLength, Calendar cal, Context context)	Decode data according to Time.
Timestamp	decodeTimestamp(ColumnDecoder[] metadataList, int fieldIndex, ReadableByteBuf rowBuf, MutableInt fieldLength, Calendar cal, Context context)	Decode data according to Timestamp.
Object	defaultDecode(ColumnDecoder[] metadataList, int fieldIndex, ReadableByteBuf rowBuf, MutableInt fieldLength, Context context)	Decode data according to data type.
int	setPosition(int newIndex, MutableInt fieldIndex, int maxIndex, ReadableByteBuf rowBuf, byte[] nullBitmap, ColumnDecoder[] metadataList)	Set length and pos indicator to asked index.
boolean	wasNull(byte[] nullBitmap, MutableInt fieldIndex, MutableInt fieldLength)	Indicate if last decoded value was null

Methods inherited from class Object

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

Constructor Details

TextRowDecoder

public TextRowDecoder()

Method Details

decode

public <T> T decode(Codec<T> codec,
 Calendar cal,
 ReadableByteBuf rowBuf,
 MutableInt fieldLength,
 ColumnDecoder[] metadataList,
 int fieldIndex,
 Context context)
             throws SQLException

Description copied from interface: RowDecoder

Decode data according to data type.

Specified by:

decode in interface RowDecoder

Type Parameters:

T - Codec default return type

Parameters:

codec - current codec

cal - calendar

rowBuf - row buffer

fieldLength - field length

metadataList - metadatas

fieldIndex - field index

context - connection context

Returns:

default object according to metadata

Throws:

SQLException - if any decoding error occurs

defaultDecode

public Object defaultDecode(ColumnDecoder[] metadataList,
 int fieldIndex,
 ReadableByteBuf rowBuf,
 MutableInt fieldLength,
 Context context)
                     throws SQLException

Description copied from interface: RowDecoder

Decode data according to data type.

Specified by:

defaultDecode in interface RowDecoder

Parameters:

metadataList - metadata list

fieldIndex - field index

rowBuf - row buffer

fieldLength - field length

context - connection context

Returns:

data

Throws:

SQLException - if any decoding error occurs

decodeString

public String decodeString(ColumnDecoder[] metadataList,
 int fieldIndex,
 ReadableByteBuf rowBuf,
 MutableInt fieldLength,
 Context context)
                    throws SQLException

Description copied from interface: RowDecoder

Decode data according to String.

Specified by:

decodeString in interface RowDecoder

Parameters:

metadataList - metadata list

fieldIndex - field index

rowBuf - row buffer

fieldLength - field length

context - connection Context

Returns:

data

Throws:

SQLException - if data type cannot be decoded to String value

decodeByte

public byte decodeByte(ColumnDecoder[] metadataList,
 int fieldIndex,
 ReadableByteBuf rowBuf,
 MutableInt fieldLength)
                throws SQLException

Description copied from interface: RowDecoder

Decode data according to byte.

Specified by:

decodeByte in interface RowDecoder

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

public boolean decodeBoolean(ColumnDecoder[] metadataList,
 int fieldIndex,
 ReadableByteBuf rowBuf,
 MutableInt fieldLength)
                      throws SQLException

Description copied from interface: RowDecoder

Decode data according to boolean.

Specified by:

decodeBoolean in interface RowDecoder

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

public Date decodeDate(ColumnDecoder[] metadataList,
 int fieldIndex,
 ReadableByteBuf rowBuf,
 MutableInt fieldLength,
 Calendar cal,
 Context context)
                throws SQLException

Description copied from interface: RowDecoder

Decode data according to Date.

Specified by:

decodeDate in interface RowDecoder

Parameters:

metadataList - metadata list

fieldIndex - field index

rowBuf - row buffer

fieldLength - field length

cal - calendar

context - current context

Returns:

data

Throws:

SQLException - if data type cannot be decoded to Date value

decodeTime

public Time decodeTime(ColumnDecoder[] metadataList,
 int fieldIndex,
 ReadableByteBuf rowBuf,
 MutableInt fieldLength,
 Calendar cal,
 Context context)
                throws SQLException

Description copied from interface: RowDecoder

Decode data according to Time.

Specified by:

decodeTime in interface RowDecoder

Parameters:

metadataList - metadata list

fieldIndex - field index

rowBuf - row buffer

fieldLength - field length

cal - calendar

context - connection context

Returns:

data

Throws:

SQLException - if data type cannot be decoded to Time value

decodeTimestamp

public Timestamp decodeTimestamp(ColumnDecoder[] metadataList,
 int fieldIndex,
 ReadableByteBuf rowBuf,
 MutableInt fieldLength,
 Calendar cal,
 Context context)
                          throws SQLException

Description copied from interface: RowDecoder

Decode data according to Timestamp.

Specified by:

decodeTimestamp in interface RowDecoder

Parameters:

metadataList - metadata list

fieldIndex - field index

rowBuf - row buffer

fieldLength - field length

cal - calendar

context - connection context

Returns:

data

Throws:

SQLException - if data type cannot be decoded to Timestamp value

decodeShort

public short decodeShort(ColumnDecoder[] metadataList,
 int fieldIndex,
 ReadableByteBuf rowBuf,
 MutableInt fieldLength)
                  throws SQLException

Description copied from interface: RowDecoder

Decode data according to short.

Specified by:

decodeShort in interface RowDecoder

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

public int decodeInt(ColumnDecoder[] metadataList,
 int fieldIndex,
 ReadableByteBuf rowBuf,
 MutableInt fieldLength)
              throws SQLException

Description copied from interface: RowDecoder

Decode data according to int.

Specified by:

decodeInt in interface RowDecoder

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

decodeLong

public long decodeLong(ColumnDecoder[] metadataList,
 int fieldIndex,
 ReadableByteBuf rowBuf,
 MutableInt fieldLength)
                throws SQLException

Description copied from interface: RowDecoder

Decode data according to long.

Specified by:

decodeLong in interface RowDecoder

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

public float decodeFloat(ColumnDecoder[] metadataList,
 int fieldIndex,
 ReadableByteBuf rowBuf,
 MutableInt fieldLength)
                  throws SQLException

Description copied from interface: RowDecoder

Decode data according to float.

Specified by:

decodeFloat in interface RowDecoder

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

public double decodeDouble(ColumnDecoder[] metadataList,
 int fieldIndex,
 ReadableByteBuf rowBuf,
 MutableInt fieldLength)
                    throws SQLException

Description copied from interface: RowDecoder

Decode data according to double.

Specified by:

decodeDouble in interface RowDecoder

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

wasNull

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

Description copied from interface: RowDecoder

Indicate if last decoded value was null

Specified by:

wasNull in interface RowDecoder

Parameters:

nullBitmap - null bitmap

fieldIndex - field index

fieldLength - field length

Returns:

true if last value was null

setPosition

public int setPosition(int newIndex,
 MutableInt fieldIndex,
 int maxIndex,
 ReadableByteBuf rowBuf,
 byte[] nullBitmap,
 ColumnDecoder[] metadataList)
                throws SQLException

Set length and pos indicator to asked index.

Specified by:

setPosition in interface RowDecoder

Parameters:

newIndex - index (1 is first).

fieldIndex - current field index

maxIndex - maximum index

rowBuf - row buffer

nullBitmap - null bitmap

metadataList - metadata list

Returns:

new index to read data

Throws:

SQLException - if the field length is not a valid value

checkFieldLength

private static int checkFieldLength(int fieldLength,
 ReadableByteBuf rowBuf)
                             throws SQLException

The field length is server-declared: column decoders allocate from it, so it must fit in the row packet before any of them run.

Throws:

SQLException