org.apache.iotdb.tsfile.encoding.encoder

Class FreqEncoder

java.lang.Object

org.apache.iotdb.tsfile.encoding.encoder.Encoder

org.apache.iotdb.tsfile.encoding.encoder.FreqEncoder

public class FreqEncoder
extends Encoder

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	FreqEncoder.Point

Field Summary

Fields

Modifier and Type	Field and Description
protected static int	BLOCK_DEFAULT_SIZE
protected static double	DEFAULT_SNR
static String	FREQ_ENCODING_BLOCK_SIZE
static String	FREQ_ENCODING_SNR
protected int	writeIndex

Fields inherited from class org.apache.iotdb.tsfile.encoding.encoder.Encoder

MAX_POINT_NUMBER, MAX_STRING_LENGTH

Constructor Summary

Constructors

Constructor and Description
FreqEncoder()
FreqEncoder(int size)
FreqEncoder(int size, double snr)

Method Summary

Modifier and Type	Method and Description
void	encode(double value, ByteArrayOutputStream out)
void	encode(float value, ByteArrayOutputStream out)
void	encode(int value, ByteArrayOutputStream out)
void	encode(long value, ByteArrayOutputStream out)
void	flush(ByteArrayOutputStream out) Write all values buffered in memory cache to OutputStream.
long	getMaxByteSize() The maximal possible memory size occupied by current Encoder.
int	getOneItemMaxSize() When encoder accepts a new incoming data point, the maximal possible size in byte it takes to store in memory.

Methods inherited from class org.apache.iotdb.tsfile.encoding.encoder.Encoder

encode, encode, encode, encode, getType, setType

Methods inherited from class java.lang.Object

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

Field Detail

FREQ_ENCODING_SNR

public static final String FREQ_ENCODING_SNR

See Also:

Constant Field Values

FREQ_ENCODING_BLOCK_SIZE

public static final String FREQ_ENCODING_BLOCK_SIZE

See Also:

Constant Field Values

BLOCK_DEFAULT_SIZE

protected static final int BLOCK_DEFAULT_SIZE

See Also:

Constant Field Values

DEFAULT_SNR

protected static final double DEFAULT_SNR

See Also:

Constant Field Values

writeIndex

protected int writeIndex

Constructor Detail

FreqEncoder

public FreqEncoder()

FreqEncoder

public FreqEncoder(int size)

FreqEncoder

public FreqEncoder(int size,
                   double snr)

Method Detail

encode

public void encode(double value,
                   ByteArrayOutputStream out)

Overrides:

encode in class Encoder

encode

public void encode(float value,
                   ByteArrayOutputStream out)

Overrides:

encode in class Encoder

encode

public void encode(int value,
                   ByteArrayOutputStream out)

Overrides:

encode in class Encoder

encode

public void encode(long value,
                   ByteArrayOutputStream out)

Overrides:

encode in class Encoder

flush

public void flush(ByteArrayOutputStream out)

Description copied from class: Encoder

Write all values buffered in memory cache to OutputStream.

Specified by:

flush in class Encoder

Parameters:

out - - ByteArrayOutputStream

getOneItemMaxSize

public int getOneItemMaxSize()

Description copied from class: Encoder

When encoder accepts a new incoming data point, the maximal possible size in byte it takes to store in memory.

Overrides:

getOneItemMaxSize in class Encoder

Returns:

the maximal possible size of one data item encoded by this encoder

getMaxByteSize

public long getMaxByteSize()

Description copied from class: Encoder

The maximal possible memory size occupied by current Encoder. This statistic value doesn't involve OutputStream.

Overrides:

getMaxByteSize in class Encoder

Returns:

the maximal size of possible memory occupied by current encoder