org.apache.iotdb.tsfile.encoding.decoder

Class BitmapDecoder

java.lang.Object

org.apache.iotdb.tsfile.encoding.decoder.Decoder

org.apache.iotdb.tsfile.encoding.decoder.BitmapDecoder

Deprecated.

(2019.1.25, The bitmap data type has been removed., We can reserve this class, and reuse it later.)

@Deprecated
public class BitmapDecoder
extends Decoder

Decoder switch or enums value using bitmap, bitmap-encoding:. <length> <num> <encoded-data>

Constructor Summary

Constructors

Constructor and Description
BitmapDecoder() Deprecated. BitmapDecoder constructor.

Method Summary

Modifier and Type	Method and Description
List<Pair<Integer,byte[]>>	decodeAll(int target, List<ByteBuffer> pageList) Deprecated. For special value in page list, get its bitmap index.
boolean	hasNext(ByteBuffer buffer) Deprecated. Check whether there is number left for reading.
BigDecimal	readBigDecimal(ByteBuffer buffer) Deprecated.
Binary	readBinary(ByteBuffer buffer) Deprecated.
boolean	readBoolean(ByteBuffer buffer) Deprecated. In current version, boolean value is equal to Enums value in schema.
double	readDouble(ByteBuffer buffer) Deprecated.
float	readFloat(ByteBuffer buffer) Deprecated.
int	readInt(ByteBuffer buffer) Deprecated.
long	readLong(ByteBuffer buffer) Deprecated.
short	readShort(ByteBuffer buffer) Deprecated.
void	reset() Deprecated.

Methods inherited from class org.apache.iotdb.tsfile.encoding.decoder.Decoder

getDecoderByType, getType, setType

Methods inherited from class java.lang.Object

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

Constructor Detail

BitmapDecoder

public BitmapDecoder()

Deprecated.

BitmapDecoder constructor.

Method Detail

readInt

public int readInt(ByteBuffer buffer)

Deprecated.

Overrides:

readInt in class Decoder

reset

public void reset()

Deprecated.

Specified by:

reset in class Decoder

decodeAll

public List<Pair<Integer,byte[]>> decodeAll(int target,
                                            List<ByteBuffer> pageList)

Deprecated.

For special value in page list, get its bitmap index.

Parameters:

target - value to get its bitmap index

pageList - input page list

Returns:

List(Pair of ( length, bitmap index) )

hasNext

public boolean hasNext(ByteBuffer buffer)

Deprecated.

Check whether there is number left for reading.

Specified by:

hasNext in class Decoder

Parameters:

buffer - : decoded data saved in InputStream

Returns:

true or false to indicate whether there is number left

Throws:

IOException - cannot read next value

readBoolean

public boolean readBoolean(ByteBuffer buffer)

Deprecated.

In current version, boolean value is equal to Enums value in schema.

Overrides:

readBoolean in class Decoder

Parameters:

buffer - : decoded data saved in InputStream

Throws:

TsFileDecodingException - cannot read next value

readShort

public short readShort(ByteBuffer buffer)

Deprecated.

Overrides:

readShort in class Decoder

readLong

public long readLong(ByteBuffer buffer)

Deprecated.

Overrides:

readLong in class Decoder

readFloat

public float readFloat(ByteBuffer buffer)

Deprecated.

Overrides:

readFloat in class Decoder

readDouble

public double readDouble(ByteBuffer buffer)

Deprecated.

Overrides:

readDouble in class Decoder

readBinary

public Binary readBinary(ByteBuffer buffer)

Deprecated.

Overrides:

readBinary in class Decoder

readBigDecimal

public BigDecimal readBigDecimal(ByteBuffer buffer)

Deprecated.

Overrides:

readBigDecimal in class Decoder