org.apache.iotdb.db.engine.querycontext

类 ReadOnlyMemChunk

java.lang.Object

org.apache.iotdb.db.engine.querycontext.ReadOnlyMemChunk

直接已知子类:

AlignedReadOnlyMemChunk

public class ReadOnlyMemChunk
extends Object

ReadOnlyMemChunk is a snapshot of the working MemTable and flushing memtable in the memory used for querying

字段概要

字段

限定符和类型	字段和说明
protected IChunkMetadata	cachedMetaData
protected IPointReader	chunkPointReader

构造器概要

构造器

构造器和说明
ReadOnlyMemChunk()
ReadOnlyMemChunk(String measurementUid, TSDataType dataType, TSEncoding encoding, TVList tvList, Map<String,String> props, int size, List<TimeRange> deletionList)

方法概要

限定符和类型	方法和说明
IChunkMetadata	getChunkMetaData()
TSDataType	getDataType()
String	getMeasurementUid()
IPointReader	getPointReader()
boolean	isEmpty()

从类继承的方法 java.lang.Object

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

字段详细资料

cachedMetaData

protected IChunkMetadata cachedMetaData

chunkPointReader

protected IPointReader chunkPointReader

构造器详细资料

ReadOnlyMemChunk

public ReadOnlyMemChunk()

ReadOnlyMemChunk

public ReadOnlyMemChunk(String measurementUid,
                        TSDataType dataType,
                        TSEncoding encoding,
                        TVList tvList,
                        Map<String,String> props,
                        int size,
                        List<TimeRange> deletionList)
                 throws IOException,
                        QueryProcessException

抛出:

IOException

QueryProcessException

方法详细资料

getDataType

public TSDataType getDataType()

isEmpty

public boolean isEmpty()
                throws IOException

抛出:

IOException

getChunkMetaData

public IChunkMetadata getChunkMetaData()

getPointReader

public IPointReader getPointReader()

getMeasurementUid

public String getMeasurementUid()