Package org.apache.iotdb.db.engine.memtable

Class WritableMemChunk

java.lang.Object

org.apache.iotdb.db.engine.memtable.WritableMemChunk

All Implemented Interfaces:

IWritableMemChunk, SerializedSize, WALEntryValue

public class WritableMemChunk
extends java.lang.Object
implements IWritableMemChunk

Constructor Summary

Constructors

Constructor	Description
WritableMemChunk(org.apache.iotdb.tsfile.write.schema.IMeasurementSchema schema)

Method Summary

Modifier and Type	Method	Description
long	count()
org.apache.iotdb.tsfile.write.chunk.IChunkWriter	createIChunkWriter()
int	delete(long lowerBound, long upperBound)
static WritableMemChunk	deserialize(java.io.DataInputStream stream)
void	encode(org.apache.iotdb.tsfile.write.chunk.IChunkWriter chunkWriter)
long	getFirstPoint()
long	getLastPoint()
long	getMinTime()
org.apache.iotdb.tsfile.write.schema.IMeasurementSchema	getSchema()
TVList	getSortedTvListForQuery()	served for query requests.
TVList	getSortedTvListForQuery(java.util.List<org.apache.iotdb.tsfile.write.schema.IMeasurementSchema> measurementSchema)	served for vector query requests.
TVList	getTVList()
void	putAlignedValue(long t, java.lang.Object[] v, int[] columnOrder)
void	putAlignedValues(long[] t, java.lang.Object[] v, org.apache.iotdb.tsfile.utils.BitMap[] bitMaps, int[] columnOrder, int start, int end)
void	putBinaries(long[] t, org.apache.iotdb.tsfile.utils.Binary[] v, org.apache.iotdb.tsfile.utils.BitMap bitMap, int start, int end)
void	putBinary(long t, org.apache.iotdb.tsfile.utils.Binary v)
void	putBoolean(long t, boolean v)
void	putBooleans(long[] t, boolean[] v, org.apache.iotdb.tsfile.utils.BitMap bitMap, int start, int end)
void	putDouble(long t, double v)
void	putDoubles(long[] t, double[] v, org.apache.iotdb.tsfile.utils.BitMap bitMap, int start, int end)
void	putFloat(long t, float v)
void	putFloats(long[] t, float[] v, org.apache.iotdb.tsfile.utils.BitMap bitMap, int start, int end)
void	putInt(long t, int v)
void	putInts(long[] t, int[] v, org.apache.iotdb.tsfile.utils.BitMap bitMap, int start, int end)
void	putLong(long t, long v)
void	putLongs(long[] t, long[] v, org.apache.iotdb.tsfile.utils.BitMap bitMap, int start, int end)
void	release()
int	serializedSize()	Calculate size after serialization.
void	serializeToWAL(IWALByteBufferView buffer)	Serialize using IWALByteBufferView, which encapsulates some actions to deal with BufferOverflowException occurs in ByteBuffer.
void	sortTvListForFlush()	served for flush requests.
java.lang.String	toString()
void	write(long[] times, java.lang.Object valueList, org.apache.iotdb.tsfile.utils.BitMap bitMap, org.apache.iotdb.tsfile.file.metadata.enums.TSDataType dataType, int start, int end)	write data in the range [start, end).
void	write(long insertTime, java.lang.Object objectValue)
void	writeAlignedValue(long insertTime, java.lang.Object[] objectValue, java.util.List<org.apache.iotdb.tsfile.write.schema.IMeasurementSchema> schemaList)
void	writeAlignedValues(long[] times, java.lang.Object[] valueList, org.apache.iotdb.tsfile.utils.BitMap[] bitMaps, java.util.List<org.apache.iotdb.tsfile.write.schema.IMeasurementSchema> schemaList, int start, int end)

Methods inherited from class java.lang.Object

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

Constructor Detail

WritableMemChunk

public WritableMemChunk(org.apache.iotdb.tsfile.write.schema.IMeasurementSchema schema)

Method Detail

write

public void write(long insertTime,
                  java.lang.Object objectValue)

Specified by:

write in interface IWritableMemChunk

writeAlignedValue

public void writeAlignedValue(long insertTime,
                              java.lang.Object[] objectValue,
                              java.util.List<org.apache.iotdb.tsfile.write.schema.IMeasurementSchema> schemaList)

Specified by:

writeAlignedValue in interface IWritableMemChunk

write

public void write(long[] times,
                  java.lang.Object valueList,
                  org.apache.iotdb.tsfile.utils.BitMap bitMap,
                  org.apache.iotdb.tsfile.file.metadata.enums.TSDataType dataType,
                  int start,
                  int end)

Description copied from interface: IWritableMemChunk

write data in the range [start, end). Null value in the valueList will be replaced by the subsequent non-null value, e.g., {1, null, 3, null, 5} will be {1, 3, 5, null, 5}

Specified by:

write in interface IWritableMemChunk

writeAlignedValues

public void writeAlignedValues(long[] times,
                               java.lang.Object[] valueList,
                               org.apache.iotdb.tsfile.utils.BitMap[] bitMaps,
                               java.util.List<org.apache.iotdb.tsfile.write.schema.IMeasurementSchema> schemaList,
                               int start,
                               int end)

Specified by:

writeAlignedValues in interface IWritableMemChunk

putLong

public void putLong(long t,
                    long v)

Specified by:

putLong in interface IWritableMemChunk

putInt

public void putInt(long t,
                   int v)

Specified by:

putInt in interface IWritableMemChunk

putFloat

public void putFloat(long t,
                     float v)

Specified by:

putFloat in interface IWritableMemChunk

putDouble

public void putDouble(long t,
                      double v)

Specified by:

putDouble in interface IWritableMemChunk

putBinary

public void putBinary(long t,
                      org.apache.iotdb.tsfile.utils.Binary v)

Specified by:

putBinary in interface IWritableMemChunk

putBoolean

public void putBoolean(long t,
                       boolean v)

Specified by:

putBoolean in interface IWritableMemChunk

putAlignedValue

public void putAlignedValue(long t,
                            java.lang.Object[] v,
                            int[] columnOrder)

Specified by:

putAlignedValue in interface IWritableMemChunk

putLongs

public void putLongs(long[] t,
                     long[] v,
                     org.apache.iotdb.tsfile.utils.BitMap bitMap,
                     int start,
                     int end)

Specified by:

putLongs in interface IWritableMemChunk

putInts

public void putInts(long[] t,
                    int[] v,
                    org.apache.iotdb.tsfile.utils.BitMap bitMap,
                    int start,
                    int end)

Specified by:

putInts in interface IWritableMemChunk

putFloats

public void putFloats(long[] t,
                      float[] v,
                      org.apache.iotdb.tsfile.utils.BitMap bitMap,
                      int start,
                      int end)

Specified by:

putFloats in interface IWritableMemChunk

putDoubles

public void putDoubles(long[] t,
                       double[] v,
                       org.apache.iotdb.tsfile.utils.BitMap bitMap,
                       int start,
                       int end)

Specified by:

putDoubles in interface IWritableMemChunk

putBinaries

public void putBinaries(long[] t,
                        org.apache.iotdb.tsfile.utils.Binary[] v,
                        org.apache.iotdb.tsfile.utils.BitMap bitMap,
                        int start,
                        int end)

Specified by:

putBinaries in interface IWritableMemChunk

putBooleans

public void putBooleans(long[] t,
                        boolean[] v,
                        org.apache.iotdb.tsfile.utils.BitMap bitMap,
                        int start,
                        int end)

Specified by:

putBooleans in interface IWritableMemChunk

putAlignedValues

public void putAlignedValues(long[] t,
                             java.lang.Object[] v,
                             org.apache.iotdb.tsfile.utils.BitMap[] bitMaps,
                             int[] columnOrder,
                             int start,
                             int end)

Specified by:

putAlignedValues in interface IWritableMemChunk

getSortedTvListForQuery

public TVList getSortedTvListForQuery()

Description copied from interface: IWritableMemChunk

served for query requests.

if tv list has been sorted, just return reference of it

if tv list hasn't been sorted and has no reference, sort and return reference of it

if tv list hasn't been sorted and has reference we should copy and sort it, then return ths list

the mechanism is just like copy on write

This interface should be synchronized for concurrent with sortTvListForFlush

Specified by:

getSortedTvListForQuery in interface IWritableMemChunk

Returns:

sorted tv list

getSortedTvListForQuery

public TVList getSortedTvListForQuery(java.util.List<org.apache.iotdb.tsfile.write.schema.IMeasurementSchema> measurementSchema)

Description copied from interface: IWritableMemChunk

served for vector query requests.

the mechanism is just like copy on write

This interface should be synchronized for concurrent with sortTvListForFlush

Specified by:

getSortedTvListForQuery in interface IWritableMemChunk

Returns:

sorted tv list

sortTvListForFlush

public void sortTvListForFlush()

Description copied from interface: IWritableMemChunk

served for flush requests. The logic is just same as getSortedTVListForQuery, but without add reference count

This interface should be synchronized for concurrent with getSortedTvListForQuery

Specified by:

sortTvListForFlush in interface IWritableMemChunk

getTVList

public TVList getTVList()

Specified by:

getTVList in interface IWritableMemChunk

count

public long count()

Specified by:

count in interface IWritableMemChunk

getSchema

public org.apache.iotdb.tsfile.write.schema.IMeasurementSchema getSchema()

Specified by:

getSchema in interface IWritableMemChunk

getMinTime

public long getMinTime()

Specified by:

getMinTime in interface IWritableMemChunk

getFirstPoint

public long getFirstPoint()

Specified by:

getFirstPoint in interface IWritableMemChunk

getLastPoint

public long getLastPoint()

Specified by:

getLastPoint in interface IWritableMemChunk

delete

public int delete(long lowerBound,
                  long upperBound)

Specified by:

delete in interface IWritableMemChunk

Returns:

how many points are deleted

createIChunkWriter

public org.apache.iotdb.tsfile.write.chunk.IChunkWriter createIChunkWriter()

Specified by:

createIChunkWriter in interface IWritableMemChunk

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

encode

public void encode(org.apache.iotdb.tsfile.write.chunk.IChunkWriter chunkWriter)

Specified by:

encode in interface IWritableMemChunk

release

public void release()

Specified by:

release in interface IWritableMemChunk

serializedSize

public int serializedSize()

Description copied from interface: SerializedSize

Calculate size after serialization.

Specified by:

serializedSize in interface SerializedSize

Returns:

bytes number

serializeToWAL

public void serializeToWAL(IWALByteBufferView buffer)

Description copied from interface: WALEntryValue

Serialize using IWALByteBufferView, which encapsulates some actions to deal with BufferOverflowException occurs in ByteBuffer.

Specified by:

serializeToWAL in interface WALEntryValue

deserialize

public static WritableMemChunk deserialize(java.io.DataInputStream stream)
                                    throws java.io.IOException

Throws:

java.io.IOException