gr.uoa.di.madgik.hive.plan

Class OperatorNode

java.lang.Object

gr.uoa.di.madgik.hive.plan.PlanNode

gr.uoa.di.madgik.hive.plan.OperatorNode

public class OperatorNode
extends PlanNode

Represents an operator node of the plan that will be the input to the workflow layer

Author:

john.gerbesiotis - DI NKUA

Field Summary

Fields inherited from class gr.uoa.di.madgik.hive.plan.PlanNode

functionalArgs

Constructor Summary

Constructors

Constructor and Description
OperatorNode(Functionality functionality, HashMap<String,String> functionalArgs, ArrayList<PlanNode> children) Default Constructor
OperatorNode(OperatorNode node)

Method Summary

Modifier and Type	Method and Description
void	addChild(PlanNode child) adds a child in the children field
boolean	equals(Object obj)
ArrayList<PlanNode>	getChildren() getter for the children field, which defines the nodes that provide the data input to the operator.
Functionality	getFunctionality() getter for the functionality of this operation
int	hashCode()
void	setChildren(ArrayList<PlanNode> children) setter for the children field, which defines the nodes that provide the data input to the operator
void	setFunctionality(Functionality functionality) getter for the functionality of this operation
String	toString()

Methods inherited from class gr.uoa.di.madgik.hive.plan.PlanNode

getFunctionalArgs, getParent, setFunctionalArgs, setParent

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

OperatorNode

public OperatorNode(Functionality functionality,
                    HashMap<String,String> functionalArgs,
                    ArrayList<PlanNode> children)

Default Constructor

Parameters:

functionality - - the functionality of the operation

functionalArgs - - all the arguments needed from the corresponding operator(for determining the functional behavior) in order to execute this node of the plan.

children - - the nodes that provide the data input to the operator

OperatorNode

public OperatorNode(OperatorNode node)

Method Detail

setChildren

public void setChildren(ArrayList<PlanNode> children)

setter for the children field, which defines the nodes that provide the data input to the operator

Parameters:

children - the children

getChildren

public ArrayList<PlanNode> getChildren()

getter for the children field, which defines the nodes that provide the data input to the operator.

Returns:

the children

addChild

public void addChild(PlanNode child)

adds a child in the children field

Parameters:

child - the child to be added

getFunctionality

public Functionality getFunctionality()

getter for the functionality of this operation

Returns:

the functionality

setFunctionality

public void setFunctionality(Functionality functionality)

getter for the functionality of this operation

Parameters:

functionality - the functionality

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object