org.apache.iotdb.db.engine.memtable

接口 IWritableMemChunk

所有已知实现类:

AlignedWritableMemChunk, WritableMemChunk

public interface IWritableMemChunk

方法概要

限定符和类型	方法和说明
long	count()
IChunkWriter	createIChunkWriter()
int	delete(long lowerBound, long upperBound)
void	encode(IChunkWriter chunkWriter)
long	getFirstPoint()
long	getLastPoint()
default long	getMinTime()
IMeasurementSchema	getSchema()
TVList	getSortedTvListForQuery() served for query requests.
TVList	getSortedTvListForQuery(List<IMeasurementSchema> schemaList) served for vector query requests.
default TVList	getTVList()
void	putAlignedValue(long t, Object[] v, int[] columnIndexArray)
void	putAlignedValues(long[] t, Object[] v, BitMap[] bitMaps, int[] columnIndexArray, int start, int end)
void	putBinaries(long[] t, Binary[] v, BitMap bitMap, int start, int end)
void	putBinary(long t, Binary v)
void	putBoolean(long t, boolean v)
void	putBooleans(long[] t, boolean[] v, BitMap bitMap, int start, int end)
void	putDouble(long t, double v)
void	putDoubles(long[] t, double[] v, BitMap bitMap, int start, int end)
void	putFloat(long t, float v)
void	putFloats(long[] t, float[] v, BitMap bitMap, int start, int end)
void	putInt(long t, int v)
void	putInts(long[] t, int[] v, BitMap bitMap, int start, int end)
void	putLong(long t, long v)
void	putLongs(long[] t, long[] v, BitMap bitMap, int start, int end)
void	release()
void	sortTvListForFlush() served for flush requests.
void	write(long[] times, Object valueList, BitMap bitMap, TSDataType dataType, int start, int end) write data in the range [start, end).
void	write(long insertTime, Object objectValue)
void	writeAlignedValue(long insertTime, Object[] objectValue, List<Integer> failedIndices, List<IMeasurementSchema> schemaList)
void	writeAlignedValues(long[] times, Object[] valueList, BitMap[] bitMaps, List<Integer> failedIndices, List<IMeasurementSchema> schemaList, int start, int end)

方法详细资料

putLong

void putLong(long t,
             long v)

putInt

void putInt(long t,
            int v)

putFloat

void putFloat(long t,
              float v)

putDouble

void putDouble(long t,
               double v)

putBinary

void putBinary(long t,
               Binary v)

putBoolean

void putBoolean(long t,
                boolean v)

putAlignedValue

void putAlignedValue(long t,
                     Object[] v,
                     int[] columnIndexArray)

putLongs

void putLongs(long[] t,
              long[] v,
              BitMap bitMap,
              int start,
              int end)

putInts

void putInts(long[] t,
             int[] v,
             BitMap bitMap,
             int start,
             int end)

putFloats

void putFloats(long[] t,
               float[] v,
               BitMap bitMap,
               int start,
               int end)

putDoubles

void putDoubles(long[] t,
                double[] v,
                BitMap bitMap,
                int start,
                int end)

putBinaries

void putBinaries(long[] t,
                 Binary[] v,
                 BitMap bitMap,
                 int start,
                 int end)

putBooleans

void putBooleans(long[] t,
                 boolean[] v,
                 BitMap bitMap,
                 int start,
                 int end)

putAlignedValues

void putAlignedValues(long[] t,
                      Object[] v,
                      BitMap[] bitMaps,
                      int[] columnIndexArray,
                      int start,
                      int end)

write

void write(long insertTime,
           Object objectValue)

writeAlignedValue

void writeAlignedValue(long insertTime,
                       Object[] objectValue,
                       List<Integer> failedIndices,
                       List<IMeasurementSchema> schemaList)

write

void write(long[] times,
           Object valueList,
           BitMap bitMap,
           TSDataType dataType,
           int start,
           int end)

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}

writeAlignedValues

void writeAlignedValues(long[] times,
                        Object[] valueList,
                        BitMap[] bitMaps,
                        List<Integer> failedIndices,
                        List<IMeasurementSchema> schemaList,
                        int start,
                        int end)

count

long count()

getSchema

IMeasurementSchema getSchema()

getSortedTvListForQuery

TVList getSortedTvListForQuery()

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

返回:

sorted tv list

getSortedTvListForQuery

TVList getSortedTvListForQuery(List<IMeasurementSchema> schemaList)

served for vector query requests.

the mechanism is just like copy on write

This interface should be synchronized for concurrent with sortTvListForFlush

返回:

sorted tv list

sortTvListForFlush

void sortTvListForFlush()

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

getTVList

default TVList getTVList()

getMinTime

default long getMinTime()

delete

int delete(long lowerBound,
           long upperBound)

返回:

how many points are deleted

createIChunkWriter

IChunkWriter createIChunkWriter()

encode

void encode(IChunkWriter chunkWriter)

release

void release()

getFirstPoint

long getFirstPoint()

getLastPoint

long getLastPoint()