Package org.apache.iotdb.db.mpp.common.schematree

Class DeviceGroupSchemaTree

java.lang.Object

org.apache.iotdb.db.mpp.common.schematree.DeviceGroupSchemaTree

All Implemented Interfaces:

ISchemaTree

public class DeviceGroupSchemaTree
extends java.lang.Object
implements ISchemaTree

This class is specifically for standalone schema validation during data insertion. Since the schema fetch is mainly based on device path, the schema is directly grouped by device rater than organized as a trie.

Constructor Summary

Constructors

Constructor	Description
DeviceGroupSchemaTree()

Method Summary

Modifier and Type	Method	Description
void	addDeviceInfo(DeviceSchemaInfo deviceSchemaInfo)
java.util.List<MeasurementPath>	getAllMeasurement()
java.lang.String	getBelongedStorageGroup(java.lang.String pathName)	Get storage group name by path
java.lang.String	getBelongedStorageGroup(org.apache.iotdb.commons.path.PartialPath path)
java.util.List<DeviceSchemaInfo>	getMatchedDevices(org.apache.iotdb.commons.path.PartialPath pathPattern)
java.util.List<DeviceSchemaInfo>	getMatchedDevices(org.apache.iotdb.commons.path.PartialPath pathPattern, boolean isPrefixMatch)	Get all device matching the path pattern.
java.util.List<java.lang.String>	getStorageGroups()
boolean	isEmpty()
void	merge(DeviceGroupSchemaTree schemaTree)
DeviceSchemaInfo	searchDeviceSchemaInfo(org.apache.iotdb.commons.path.PartialPath devicePath, java.util.List<java.lang.String> measurements)
org.apache.iotdb.tsfile.utils.Pair<java.util.List<MeasurementPath>,java.lang.Integer>	searchMeasurementPaths(org.apache.iotdb.commons.path.PartialPath pathPattern)
org.apache.iotdb.tsfile.utils.Pair<java.util.List<MeasurementPath>,java.lang.Integer>	searchMeasurementPaths(org.apache.iotdb.commons.path.PartialPath pathPattern, int slimit, int soffset, boolean isPrefixMatch)	Return all measurement paths for given path pattern and filter the result by slimit and offset.

Methods inherited from class java.lang.Object

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

Constructor Detail

DeviceGroupSchemaTree

public DeviceGroupSchemaTree()

Method Detail

searchDeviceSchemaInfo

public DeviceSchemaInfo searchDeviceSchemaInfo(org.apache.iotdb.commons.path.PartialPath devicePath,
                                               java.util.List<java.lang.String> measurements)

Specified by:

searchDeviceSchemaInfo in interface ISchemaTree

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface ISchemaTree

addDeviceInfo

public void addDeviceInfo(DeviceSchemaInfo deviceSchemaInfo)

merge

public void merge(DeviceGroupSchemaTree schemaTree)

searchMeasurementPaths

public org.apache.iotdb.tsfile.utils.Pair<java.util.List<MeasurementPath>,java.lang.Integer> searchMeasurementPaths(org.apache.iotdb.commons.path.PartialPath pathPattern,
                                                                                                                          int slimit,
                                                                                                                          int soffset,
                                                                                                                          boolean isPrefixMatch)

Description copied from interface: ISchemaTree

Return all measurement paths for given path pattern and filter the result by slimit and offset.

Specified by:

searchMeasurementPaths in interface ISchemaTree

Parameters:

pathPattern - can be a pattern or a full path of timeseries.

isPrefixMatch - if true, the path pattern is used to match prefix path

Returns:

Left: all measurement paths; Right: remaining series offset

searchMeasurementPaths

public org.apache.iotdb.tsfile.utils.Pair<java.util.List<MeasurementPath>,java.lang.Integer> searchMeasurementPaths(org.apache.iotdb.commons.path.PartialPath pathPattern)

Specified by:

searchMeasurementPaths in interface ISchemaTree

getAllMeasurement

public java.util.List<MeasurementPath> getAllMeasurement()

Specified by:

getAllMeasurement in interface ISchemaTree

getMatchedDevices

public java.util.List<DeviceSchemaInfo> getMatchedDevices(org.apache.iotdb.commons.path.PartialPath pathPattern,
                                                          boolean isPrefixMatch)

Description copied from interface: ISchemaTree

Get all device matching the path pattern.

Specified by:

getMatchedDevices in interface ISchemaTree

Parameters:

pathPattern - the pattern of the target devices.

Returns:

A HashSet instance which stores info of the devices matching the given path pattern.

getMatchedDevices

public java.util.List<DeviceSchemaInfo> getMatchedDevices(org.apache.iotdb.commons.path.PartialPath pathPattern)

Specified by:

getMatchedDevices in interface ISchemaTree

getBelongedStorageGroup

public java.lang.String getBelongedStorageGroup(java.lang.String pathName)

Description copied from interface: ISchemaTree

Get storage group name by path

e.g., root.sg1 is a storage group and path = root.sg1.d1, return root.sg1

Specified by:

getBelongedStorageGroup in interface ISchemaTree

Parameters:

pathName - only full path, cannot be path pattern

Returns:

storage group in the given path

getBelongedStorageGroup

public java.lang.String getBelongedStorageGroup(org.apache.iotdb.commons.path.PartialPath path)

Specified by:

getBelongedStorageGroup in interface ISchemaTree

getStorageGroups

public java.util.List<java.lang.String> getStorageGroups()

Specified by:

getStorageGroups in interface ISchemaTree