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

Class SortNode

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.SortNode

All Implemented Interfaces:

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

public class SortNode
extends ProcessNode

In general, the parameter in sortNode should be pushed down to the upstream operators. In our optimized logical query plan, the sortNode should not appear.

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
SortNode(PlanNodeId id, PlanNode child, Ordering sortOrder)
SortNode(PlanNodeId id, Ordering sortOrder)

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

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, toString, wait, wait, wait

Constructor Detail

SortNode

public SortNode(PlanNodeId id,
                Ordering sortOrder)

SortNode

public SortNode(PlanNodeId id,
                PlanNode child,
                Ordering sortOrder)

Method Detail

getSortOrder

public Ordering getSortOrder()

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 SortNode deserialize(java.nio.ByteBuffer byteBuffer)

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class PlanNode

hashCode

public int hashCode()

Overrides:

hashCode in class PlanNode