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

Class TimeJoinNode

java.lang.Object

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

org.apache.iotdb.db.mpp.plan.planner.plan.node.process.ProcessNode

org.apache.iotdb.db.mpp.plan.planner.plan.node.process.MultiChildNode

org.apache.iotdb.db.mpp.plan.planner.plan.node.process.TimeJoinNode

All Implemented Interfaces:

org.apache.iotdb.consensus.common.request.IConsensusRequest

public class TimeJoinNode
extends MultiChildNode

This node is responsible for join two or more TsBlock. The join algorithm is like outer join by timestamp column. It will join two or more TsBlock by Timestamp column. The output result of TimeJoinOperator is sorted by timestamp

Field Summary

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

children

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
TimeJoinNode(PlanNodeId id, Ordering mergeOrder)
TimeJoinNode(PlanNodeId id, Ordering mergeOrder, java.util.List<PlanNode> children)

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()
static TimeJoinNode	deserialize(java.nio.ByteBuffer byteBuffer)
boolean	equals(java.lang.Object o)
java.util.List<PlanNode>	getChildren()
Ordering	getMergeOrder()
java.util.List<java.lang.String>	getOutputColumnNames()
int	hashCode()
protected void	serializeAttributes(java.io.DataOutputStream stream)
protected void	serializeAttributes(java.nio.ByteBuffer byteBuffer)
java.lang.String	toString()

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

setChildren

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

TimeJoinNode

public TimeJoinNode(PlanNodeId id,
                    Ordering mergeOrder)

TimeJoinNode

public TimeJoinNode(PlanNodeId id,
                    Ordering mergeOrder,
                    java.util.List<PlanNode> children)

Method Detail

getMergeOrder

public Ordering getMergeOrder()

getChildren

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

Specified by:

getChildren in class PlanNode

addChild

public void addChild(PlanNode child)

Specified by:

addChild in class PlanNode

allowedChildCount

public int allowedChildCount()

Specified by:

allowedChildCount 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 TimeJoinNode 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 MultiChildNode

hashCode

public int hashCode()

Overrides:

hashCode in class MultiChildNode