org.apache.iotdb.db.metadata.idtable

接口 IDTable

所有已知实现类:

IDTableHashmapImpl

public interface IDTable

字段概要

字段

限定符和类型	字段和说明
static IoTDBConfig	config iotdb config
static org.slf4j.Logger	logger logger

方法概要

限定符和类型	方法和说明
void	clear() clear id table and close file
void	createAlignedTimeseries(CreateAlignedTimeSeriesPlan plan) create aligned timeseries
void	createTimeseries(CreateTimeSeriesPlan plan) create timeseries
void	deregisterTrigger(PartialPath fullPath, IMeasurementMNode measurementMNode) deregister trigger to the timeseries
List<DeviceEntry>	getAllDeviceEntry() get all device entries
DeviceEntry	getDeviceEntry(String deviceName) get device entry from device path
IDiskSchemaManager	getIDiskSchemaManager()
Map<IDeviceID,DeviceEntry>[]	getIdTables()
TimeValuePair	getLastCache(TimeseriesID timeseriesID) get last cache of the timeseies
IDeviceID	getSeriesSchemas(InsertPlan plan) check inserting timeseries existence and fill their measurement mnode
void	putSchemaEntry(String devicePath, String measurement, SchemaEntry schemaEntry, boolean isAligned) put schema entry to id table, currently used in recover
void	registerTrigger(PartialPath fullPath, IMeasurementMNode measurementMNode) register trigger to the timeseries
static PartialPath	translateQueryPath(PartialPath fullPath) translate query path's device path to device id
void	updateLastCache(TimeseriesID timeseriesID, TimeValuePair pair, boolean highPriorityUpdate, Long latestFlushedTime) update last cache of the timeseies

字段详细资料

logger

static final org.slf4j.Logger logger

logger

config

static final IoTDBConfig config

iotdb config

方法详细资料

createAlignedTimeseries

void createAlignedTimeseries(CreateAlignedTimeSeriesPlan plan)
                      throws MetadataException

create aligned timeseries

参数:

plan - create aligned timeseries plan

抛出:

MetadataException - if the device is not aligned, throw it

createTimeseries

void createTimeseries(CreateTimeSeriesPlan plan)
               throws MetadataException

create timeseries

参数:

plan - create timeseries plan

抛出:

MetadataException - if the device is aligned, throw it

getSeriesSchemas

IDeviceID getSeriesSchemas(InsertPlan plan)
                    throws MetadataException

check inserting timeseries existence and fill their measurement mnode

参数:

plan - insert plan

返回:

reusable device id

抛出:

MetadataException - if insert plan's aligned value is inconsistent with device

registerTrigger

void registerTrigger(PartialPath fullPath,
                     IMeasurementMNode measurementMNode)
              throws MetadataException

register trigger to the timeseries

参数:

fullPath - full path of the timeseries

measurementMNode - the timeseries measurement mnode

抛出:

MetadataException - if the timeseries is not exits

deregisterTrigger

void deregisterTrigger(PartialPath fullPath,
                       IMeasurementMNode measurementMNode)
                throws MetadataException

deregister trigger to the timeseries

参数:

fullPath - full path of the timeseries

measurementMNode - the timeseries measurement mnode

抛出:

MetadataException - if the timeseries is not exits

getLastCache

TimeValuePair getLastCache(TimeseriesID timeseriesID)
                    throws MetadataException

get last cache of the timeseies

参数:

timeseriesID - timeseries ID of the timeseries

抛出:

MetadataException - if the timeseries is not exits

updateLastCache

void updateLastCache(TimeseriesID timeseriesID,
                     TimeValuePair pair,
                     boolean highPriorityUpdate,
                     Long latestFlushedTime)
              throws MetadataException

update last cache of the timeseies

参数:

timeseriesID - timeseries ID of the timeseries

pair - last time value pair

highPriorityUpdate - is high priority update

latestFlushedTime - last flushed time

抛出:

MetadataException - if the timeseries is not exits

clear

void clear()
    throws IOException

clear id table and close file

抛出:

IOException

getDeviceEntry

DeviceEntry getDeviceEntry(String deviceName)

get device entry from device path

参数:

deviceName - device name of the time series

返回:

device entry of the timeseries

getAllDeviceEntry

List<DeviceEntry> getAllDeviceEntry()

get all device entries

返回:

all device entries

putSchemaEntry

void putSchemaEntry(String devicePath,
                    String measurement,
                    SchemaEntry schemaEntry,
                    boolean isAligned)
             throws MetadataException

put schema entry to id table, currently used in recover

参数:

devicePath - device path (can be device id formed path)

measurement - measurement name

schemaEntry - schema entry to put

isAligned - is the device aligned

抛出:

MetadataException

translateQueryPath

static PartialPath translateQueryPath(PartialPath fullPath)

translate query path's device path to device id

参数:

fullPath - full query path

返回:

translated query path

getIdTables

Map<IDeviceID,DeviceEntry>[] getIdTables()

getIDiskSchemaManager

IDiskSchemaManager getIDiskSchemaManager()