Package org.apache.iotdb.db.mpp.plan.planner.plan.node.source

Class SeriesScanNode

java.lang.Object

org.apache.iotdb.db.mpp.plan.planner.plan.node.PlanNode

org.apache.iotdb.db.mpp.plan.planner.plan.node.source.SourceNode

org.apache.iotdb.db.mpp.plan.planner.plan.node.source.SeriesSourceNode

org.apache.iotdb.db.mpp.plan.planner.plan.node.source.SeriesScanNode

All Implemented Interfaces:

java.lang.AutoCloseable, org.apache.iotdb.consensus.common.request.IConsensusRequest, IPartitionRelatedNode

public class SeriesScanNode
extends SeriesSourceNode

SeriesScanNode is responsible for read data a specific series. When reading data, the SeriesScanNode can read the raw data batch by batch. And also, it can leverage the filter and other info to decrease the result set.

Children type: no child is allowed for SeriesScanNode

Field Summary

Fields inherited from class org.apache.iotdb.db.mpp.plan.planner.plan.node.PlanNode

CHILD_COUNT_NO_LIMIT, NO_CHILD_ALLOWED, ONE_CHILD

Constructor Summary

Constructors

Constructor	Description
SeriesScanNode(PlanNodeId id, MeasurementPath seriesPath)
SeriesScanNode(PlanNodeId id, MeasurementPath seriesPath, Ordering scanOrder)
SeriesScanNode(PlanNodeId id, MeasurementPath seriesPath, Ordering scanOrder, org.apache.iotdb.tsfile.read.filter.basic.Filter timeFilter, org.apache.iotdb.tsfile.read.filter.basic.Filter valueFilter, int limit, int offset, org.apache.iotdb.common.rpc.thrift.TRegionReplicaSet dataRegionReplicaSet)

Method Summary

Modifier and Type	Method	Description
<R,C> R	accept(PlanVisitor<R,C> visitor, C context)
void	addChild(PlanNode child)
int	allowedChildCount()
PlanNode	clone()
void	close()
static SeriesScanNode	deserialize(java.nio.ByteBuffer byteBuffer)
boolean	equals(java.lang.Object o)
java.util.List<PlanNode>	getChildren()
int	getLimit()
int	getOffset()
java.util.List<java.lang.String>	getOutputColumnNames()
org.apache.iotdb.commons.path.PartialPath	getPartitionPath()
org.apache.iotdb.tsfile.read.filter.basic.Filter	getPartitionTimeFilter()
org.apache.iotdb.common.rpc.thrift.TRegionReplicaSet	getRegionReplicaSet()
Ordering	getScanOrder()
MeasurementPath	getSeriesPath()
org.apache.iotdb.tsfile.read.filter.basic.Filter	getTimeFilter()
org.apache.iotdb.tsfile.read.filter.basic.Filter	getValueFilter()
int	hashCode()
void	open()
protected void	serializeAttributes(java.io.DataOutputStream stream)
protected void	serializeAttributes(java.nio.ByteBuffer byteBuffer)
void	setLimit(int limit)
void	setOffset(int offset)
void	setRegionReplicaSet(org.apache.iotdb.common.rpc.thrift.TRegionReplicaSet dataRegion)
void	setScanOrder(Ordering scanOrder)
void	setTimeFilter(org.apache.iotdb.tsfile.read.filter.basic.Filter timeFilter)
java.lang.String	toString()

Methods inherited from class org.apache.iotdb.db.mpp.plan.planner.plan.node.PlanNode

cloneWithChildren, getPlanNodeId, serialize, serialize, serializeToByteBuffer, setPlanNodeId

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

SeriesScanNode

public SeriesScanNode(PlanNodeId id,
                      MeasurementPath seriesPath)

SeriesScanNode

public SeriesScanNode(PlanNodeId id,
                      MeasurementPath seriesPath,
                      Ordering scanOrder)

SeriesScanNode

public SeriesScanNode(PlanNodeId id,
                      MeasurementPath seriesPath,
                      Ordering scanOrder,
                      @Nullable
                      org.apache.iotdb.tsfile.read.filter.basic.Filter timeFilter,
                      @Nullable
                      org.apache.iotdb.tsfile.read.filter.basic.Filter valueFilter,
                      int limit,
                      int offset,
                      org.apache.iotdb.common.rpc.thrift.TRegionReplicaSet dataRegionReplicaSet)

Method Detail

close

public void close()
           throws java.lang.Exception

Throws:

java.lang.Exception

open

public void open()
          throws java.lang.Exception

Specified by:

open in class SourceNode

Throws:

java.lang.Exception

getRegionReplicaSet

public org.apache.iotdb.common.rpc.thrift.TRegionReplicaSet getRegionReplicaSet()

setRegionReplicaSet

public void setRegionReplicaSet(org.apache.iotdb.common.rpc.thrift.TRegionReplicaSet dataRegion)

Specified by:

setRegionReplicaSet in class SourceNode

getLimit

public int getLimit()

getOffset

public int getOffset()

setLimit

public void setLimit(int limit)

setOffset

public void setOffset(int offset)

getScanOrder

public Ordering getScanOrder()

setScanOrder

public void setScanOrder(Ordering scanOrder)

getSeriesPath

public MeasurementPath getSeriesPath()

getTimeFilter

@Nullable
public org.apache.iotdb.tsfile.read.filter.basic.Filter getTimeFilter()

setTimeFilter

public void setTimeFilter(@Nullable
                          org.apache.iotdb.tsfile.read.filter.basic.Filter timeFilter)

getValueFilter

@Nullable
public org.apache.iotdb.tsfile.read.filter.basic.Filter getValueFilter()

getChildren

public java.util.List<PlanNode> getChildren()

Specified by:

getChildren in class PlanNode

allowedChildCount

public int allowedChildCount()

Specified by:

allowedChildCount in class PlanNode

addChild

public void addChild(PlanNode child)

Specified by:

addChild in class PlanNode

clone

public PlanNode clone()

Specified by:

clone in class PlanNode

getOutputColumnNames

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

Specified by:

getOutputColumnNames in class PlanNode

accept

public <R,C> R accept(PlanVisitor<R,C> visitor,
                            C context)

Overrides:

accept in class PlanNode

serializeAttributes

protected void serializeAttributes(java.nio.ByteBuffer byteBuffer)

Specified by:

serializeAttributes in class PlanNode

serializeAttributes

protected void serializeAttributes(java.io.DataOutputStream stream)
                            throws java.io.IOException

Specified by:

serializeAttributes in class PlanNode

Throws:

java.io.IOException

deserialize

public static SeriesScanNode deserialize(java.nio.ByteBuffer byteBuffer)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class PlanNode

hashCode

public int hashCode()

Overrides:

hashCode in class PlanNode

getPartitionPath

public org.apache.iotdb.commons.path.PartialPath getPartitionPath()

Specified by:

getPartitionPath in class SeriesSourceNode

getPartitionTimeFilter

public org.apache.iotdb.tsfile.read.filter.basic.Filter getPartitionTimeFilter()

Specified by:

getPartitionTimeFilter in class SeriesSourceNode