org.apache.tajo.plan.logical

Class LogicalNode

java.lang.Object

org.apache.tajo.plan.logical.LogicalNode

All Implemented Interfaces:

Cloneable, GsonObject

Direct Known Subclasses:

AlterTableNode, AlterTablespaceNode, BinaryNode, CreateDatabaseNode, DropDatabaseNode, DropTableNode, EvalExprNode, RelationNode, SetSessionNode, TruncateTableNode, UnaryNode

public abstract class LogicalNode
extends Object
implements Cloneable, GsonObject

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	LogicalNode(int nodeId, NodeType type)

Method Summary

Methods

Modifier and Type	Method and Description
abstract int	childNum()
Object	clone()
boolean	deepEquals(Object o)
boolean	equals(Object obj)
abstract LogicalNode	getChild(int idx)
double	getCost()
Schema	getInSchema()
Schema	getOutSchema()
int	getPID()
abstract PlanString	getPlanString()
NodeType	getType()
abstract void	postOrder(LogicalNodeVisitor visitor)
abstract void	preOrder(LogicalNodeVisitor visitor)
void	setCost(double cost)
void	setInSchema(Schema inSchema)
void	setOutSchema(Schema outSchema)
void	setPID(int pid)
void	setType(NodeType type)
String	toJson()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

LogicalNode

protected LogicalNode(int nodeId,
           NodeType type)

Method Detail

getPID

public int getPID()

setPID

public void setPID(int pid)

getType

public NodeType getType()

setType

public void setType(NodeType type)

childNum

public abstract int childNum()

getChild

public abstract LogicalNode getChild(int idx)

getCost

public double getCost()

setCost

public void setCost(double cost)

setInSchema

public void setInSchema(Schema inSchema)

getInSchema

public Schema getInSchema()

setOutSchema

public void setOutSchema(Schema outSchema)

getOutSchema

public Schema getOutSchema()

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

deepEquals

public boolean deepEquals(Object o)

clone

public Object clone()
             throws CloneNotSupportedException

Overrides:

clone in class Object

Throws:

CloneNotSupportedException

toJson

public String toJson()

Specified by:

toJson in interface GsonObject

preOrder

public abstract void preOrder(LogicalNodeVisitor visitor)

postOrder

public abstract void postOrder(LogicalNodeVisitor visitor)

getPlanString

public abstract PlanString getPlanString()

toString

public String toString()

Overrides:

toString in class Object