org.apache.tajo.plan.logical

Class JoinNode

java.lang.Object

org.apache.tajo.plan.logical.LogicalNode

org.apache.tajo.plan.logical.BinaryNode

org.apache.tajo.plan.logical.JoinNode

All Implemented Interfaces:

Cloneable, GsonObject, Projectable

public class JoinNode
extends BinaryNode
implements Projectable, Cloneable

Constructor Summary

Constructors

Constructor and Description
JoinNode(int pid)

Method Summary

Methods

Modifier and Type	Method and Description
Object	clone()
boolean	equals(Object obj)
List<LogicalNode>	getBroadcastCandidateTargets()
EvalNode	getJoinQual()
JoinType	getJoinType()
PlanString	getPlanString()
Target[]	getTargets() Get a list of targets
boolean	hasJoinQual()
boolean	hasTargets() check if this node has a target list
void	init(JoinType joinType, LogicalNode left, LogicalNode right)
boolean	isCandidateBroadcast()
void	setCandidateBroadcast(boolean candidateBroadcast)
void	setJoinQual(EvalNode joinQual)
void	setJoinType(JoinType joinType)
void	setTargets(Target[] targets) Set a target list
String	toString()

Methods inherited from class org.apache.tajo.plan.logical.BinaryNode

childNum, deepEquals, getChild, getLeftChild, getRightChild, postOrder, preOrder, setLeftChild, setRightChild

Methods inherited from class org.apache.tajo.plan.logical.LogicalNode

getCost, getInSchema, getOutSchema, getPID, getType, setCost, setInSchema, setOutSchema, setPID, setType, toJson

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.tajo.plan.logical.Projectable

getInSchema, getOutSchema, getPID

Methods inherited from interface org.apache.tajo.json.GsonObject

toJson

Constructor Detail

JoinNode

public JoinNode(int pid)

Method Detail

init

public void init(JoinType joinType,
        LogicalNode left,
        LogicalNode right)

isCandidateBroadcast

public boolean isCandidateBroadcast()

setCandidateBroadcast

public void setCandidateBroadcast(boolean candidateBroadcast)

getBroadcastCandidateTargets

public List<LogicalNode> getBroadcastCandidateTargets()

getJoinType

public JoinType getJoinType()

setJoinType

public void setJoinType(JoinType joinType)

setJoinQual

public void setJoinQual(EvalNode joinQual)

hasJoinQual

public boolean hasJoinQual()

getJoinQual

public EvalNode getJoinQual()

hasTargets

public boolean hasTargets()

Description copied from interface: Projectable

check if this node has a target list

Specified by:

hasTargets in interface Projectable

Returns:

TRUE if this node has a target list. Otherwise, FALSE.

getTargets

public Target[] getTargets()

Description copied from interface: Projectable

Get a list of targets

Specified by:

getTargets in interface Projectable

Returns:

The array of targets

setTargets

public void setTargets(Target[] targets)

Description copied from interface: Projectable

Set a target list

Specified by:

setTargets in interface Projectable

Parameters:

targets - The array of targets

getPlanString

public PlanString getPlanString()

Specified by:

getPlanString in class LogicalNode

equals

public boolean equals(Object obj)

Overrides:

equals in class LogicalNode

clone

public Object clone()
             throws CloneNotSupportedException

Overrides:

clone in class BinaryNode

Throws:

CloneNotSupportedException

toString

public String toString()

Overrides:

toString in class LogicalNode