Package org.apache.iotdb.db.metadata.utils

Class ResourceByPathUtils

java.lang.Object

org.apache.iotdb.db.metadata.utils.ResourceByPathUtils

public abstract class ResourceByPathUtils
extends java.lang.Object

Obtain required resources through path, such as readers and writers and etc. AlignedPath and MeasurementPath have different implementations, and the default PartialPath should not use it.

Constructor Summary

Constructors

Constructor	Description
ResourceByPathUtils()

Method Summary

Modifier and Type	Method	Description
abstract LastPointReader	createLastPointReader(org.apache.iotdb.tsfile.file.metadata.enums.TSDataType dataType, java.util.Set<java.lang.String> deviceMeasurements, QueryContext context, QueryDataSource dataSource, long queryTime, org.apache.iotdb.tsfile.read.filter.basic.Filter timeFilter)
abstract SeriesReader	createSeriesReader(java.util.Set<java.lang.String> allSensors, org.apache.iotdb.tsfile.file.metadata.enums.TSDataType dataType, QueryContext context, java.util.List<TsFileResource> seqFileResource, java.util.List<TsFileResource> unseqFileResource, org.apache.iotdb.tsfile.read.filter.basic.Filter timeFilter, org.apache.iotdb.tsfile.read.filter.basic.Filter valueFilter, boolean ascending)
abstract SeriesReader	createSeriesReader(java.util.Set<java.lang.String> allSensors, org.apache.iotdb.tsfile.file.metadata.enums.TSDataType dataType, QueryContext context, QueryDataSource dataSource, org.apache.iotdb.tsfile.read.filter.basic.Filter timeFilter, org.apache.iotdb.tsfile.read.filter.basic.Filter valueFilter, TsFileFilter fileFilter, boolean ascending)
abstract TsFileResource	createTsFileResource(java.util.List<ReadOnlyMemChunk> readOnlyMemChunk, java.util.List<org.apache.iotdb.tsfile.file.metadata.IChunkMetadata> chunkMetadataList, TsFileResource originTsFileResource)
abstract org.apache.iotdb.tsfile.file.metadata.ITimeSeriesMetadata	generateTimeSeriesMetadata(java.util.List<ReadOnlyMemChunk> readOnlyMemChunk, java.util.List<org.apache.iotdb.tsfile.file.metadata.IChunkMetadata> chunkMetadataList)
protected java.util.List<Modification>	getModificationsForMemtable(IMemTable memTable, java.util.List<org.apache.iotdb.tsfile.utils.Pair<Modification,IMemTable>> modsToMemtable)	get modifications from a memtable.
abstract ReadOnlyMemChunk	getReadOnlyMemChunkFromMemTable(IMemTable memTable, java.util.List<org.apache.iotdb.tsfile.utils.Pair<Modification,IMemTable>> modsToMemtable, long timeLowerBound)
static ResourceByPathUtils	getResourceInstance(org.apache.iotdb.commons.path.PartialPath path)
abstract java.util.List<org.apache.iotdb.tsfile.file.metadata.IChunkMetadata>	getVisibleMetadataListFromWriter(org.apache.iotdb.tsfile.write.writer.RestorableTsFileIOWriter writer, TsFileResource tsFileResource, QueryContext context)

Methods inherited from class java.lang.Object

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

Constructor Detail

ResourceByPathUtils

public ResourceByPathUtils()

Method Detail

getResourceInstance

public static ResourceByPathUtils getResourceInstance(org.apache.iotdb.commons.path.PartialPath path)

createLastPointReader

public abstract LastPointReader createLastPointReader(org.apache.iotdb.tsfile.file.metadata.enums.TSDataType dataType,
                                                      java.util.Set<java.lang.String> deviceMeasurements,
                                                      QueryContext context,
                                                      QueryDataSource dataSource,
                                                      long queryTime,
                                                      org.apache.iotdb.tsfile.read.filter.basic.Filter timeFilter)

createSeriesReader

public abstract SeriesReader createSeriesReader(java.util.Set<java.lang.String> allSensors,
                                                org.apache.iotdb.tsfile.file.metadata.enums.TSDataType dataType,
                                                QueryContext context,
                                                QueryDataSource dataSource,
                                                org.apache.iotdb.tsfile.read.filter.basic.Filter timeFilter,
                                                org.apache.iotdb.tsfile.read.filter.basic.Filter valueFilter,
                                                TsFileFilter fileFilter,
                                                boolean ascending)

createSeriesReader

public abstract SeriesReader createSeriesReader(java.util.Set<java.lang.String> allSensors,
                                                org.apache.iotdb.tsfile.file.metadata.enums.TSDataType dataType,
                                                QueryContext context,
                                                java.util.List<TsFileResource> seqFileResource,
                                                java.util.List<TsFileResource> unseqFileResource,
                                                org.apache.iotdb.tsfile.read.filter.basic.Filter timeFilter,
                                                org.apache.iotdb.tsfile.read.filter.basic.Filter valueFilter,
                                                boolean ascending)

createTsFileResource

public abstract TsFileResource createTsFileResource(java.util.List<ReadOnlyMemChunk> readOnlyMemChunk,
                                                    java.util.List<org.apache.iotdb.tsfile.file.metadata.IChunkMetadata> chunkMetadataList,
                                                    TsFileResource originTsFileResource)
                                             throws java.io.IOException

Throws:

java.io.IOException

generateTimeSeriesMetadata

public abstract org.apache.iotdb.tsfile.file.metadata.ITimeSeriesMetadata generateTimeSeriesMetadata(java.util.List<ReadOnlyMemChunk> readOnlyMemChunk,
                                                                                                     java.util.List<org.apache.iotdb.tsfile.file.metadata.IChunkMetadata> chunkMetadataList)
                                                                                              throws java.io.IOException

Throws:

java.io.IOException

getReadOnlyMemChunkFromMemTable

public abstract ReadOnlyMemChunk getReadOnlyMemChunkFromMemTable(IMemTable memTable,
                                                                 java.util.List<org.apache.iotdb.tsfile.utils.Pair<Modification,IMemTable>> modsToMemtable,
                                                                 long timeLowerBound)
                                                          throws QueryProcessException,
                                                                 java.io.IOException

Throws:

QueryProcessException

java.io.IOException

getVisibleMetadataListFromWriter

public abstract java.util.List<org.apache.iotdb.tsfile.file.metadata.IChunkMetadata> getVisibleMetadataListFromWriter(org.apache.iotdb.tsfile.write.writer.RestorableTsFileIOWriter writer,
                                                                                                                      TsFileResource tsFileResource,
                                                                                                                      QueryContext context)

getModificationsForMemtable

protected java.util.List<Modification> getModificationsForMemtable(IMemTable memTable,
                                                                   java.util.List<org.apache.iotdb.tsfile.utils.Pair<Modification,IMemTable>> modsToMemtable)

get modifications from a memtable.