org.apache.tajo.plan.logical

Class SetSessionNode

java.lang.Object

org.apache.tajo.plan.logical.LogicalNode

org.apache.tajo.plan.logical.SetSessionNode

All Implemented Interfaces:

Cloneable, GsonObject

public class SetSessionNode
extends LogicalNode

Constructor Summary

Constructors

Constructor and Description
SetSessionNode(int pid)

Method Summary

Methods

Modifier and Type	Method and Description
int	childNum()
LogicalNode	getChild(int idx)
String	getName()
PlanString	getPlanString()
String	getValue()
boolean	hasValue()
void	init(String name, String value) If both name and value are given, it will set a session variable.
void	postOrder(LogicalNodeVisitor visitor)
void	preOrder(LogicalNodeVisitor visitor)

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

clone, deepEquals, equals, getCost, getInSchema, getOutSchema, getPID, getType, setCost, setInSchema, setOutSchema, setPID, setType, toJson, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

SetSessionNode

public SetSessionNode(int pid)

Method Detail

init

public void init(String name,
        String value)

If both name and value are given, it will set a session variable. If a name is only given, it will unset a session variable.

Parameters:

name - Session variable name

value - Session variable value

getName

public String getName()

hasValue

public boolean hasValue()

getValue

public String getValue()

childNum

public int childNum()

Specified by:

childNum in class LogicalNode

getChild

public LogicalNode getChild(int idx)

Specified by:

getChild in class LogicalNode

preOrder

public void preOrder(LogicalNodeVisitor visitor)

Specified by:

preOrder in class LogicalNode

postOrder

public void postOrder(LogicalNodeVisitor visitor)

Specified by:

postOrder in class LogicalNode

getPlanString

public PlanString getPlanString()

Specified by:

getPlanString in class LogicalNode