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

Class LastQueryNode

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.last.LastQueryNode

All Implemented Interfaces:

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

public class LastQueryNode
extends MultiChildNode

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
LastQueryNode(PlanNodeId id, java.util.List<PlanNode> children, org.apache.iotdb.tsfile.read.filter.basic.Filter timeFilter, OrderByParameter mergeOrderParameter)
LastQueryNode(PlanNodeId id, org.apache.iotdb.tsfile.read.filter.basic.Filter timeFilter, OrderByParameter mergeOrderParameter)

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 LastQueryNode	deserialize(java.nio.ByteBuffer byteBuffer)
boolean	equals(java.lang.Object o)
java.util.List<PlanNode>	getChildren()
OrderByParameter	getMergeOrderParameter()
java.util.List<java.lang.String>	getOutputColumnNames()
org.apache.iotdb.tsfile.read.filter.basic.Filter	getTimeFilter()
int	hashCode()
protected void	serializeAttributes(java.io.DataOutputStream stream)
protected void	serializeAttributes(java.nio.ByteBuffer byteBuffer)
void	setChildren(java.util.List<PlanNode> children)
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

LastQueryNode

public LastQueryNode(PlanNodeId id,
                     org.apache.iotdb.tsfile.read.filter.basic.Filter timeFilter,
                     OrderByParameter mergeOrderParameter)

LastQueryNode

public LastQueryNode(PlanNodeId id,
                     java.util.List<PlanNode> children,
                     org.apache.iotdb.tsfile.read.filter.basic.Filter timeFilter,
                     OrderByParameter mergeOrderParameter)

Method Detail

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

clone

public PlanNode clone()

Specified by:

clone in class PlanNode

allowedChildCount

public int allowedChildCount()

Specified by:

allowedChildCount in class PlanNode

getOutputColumnNames

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

Specified by:

getOutputColumnNames in class PlanNode

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

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 LastQueryNode deserialize(java.nio.ByteBuffer byteBuffer)

setChildren

public void setChildren(java.util.List<PlanNode> children)

Overrides:

setChildren in class MultiChildNode

getTimeFilter

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

getMergeOrderParameter

public OrderByParameter getMergeOrderParameter()