Node Class Reference

Public Member Functions
	Node (Tree *, Segment *, NodeType)
Node *	getLeft ()
Node *	getRight ()
Segment *	getSegment ()
void	setLeft (Node *)
void	setRight (Node *)
void	setSegment (Segment *)
Tree *	getTree ()
int	getMatrixIndex ()
std::string	getMatrixLabel ()
void	setMatrixParams (int, std::string)
int	getValue ()
void	setValue (int)
NodeType	getNodeType ()
void	setNodeType (NodeType)
bool	getIsRight ()
void	setIsRight (bool)
void	addPathLabel (std::string)
std::vector< std::string >	getPathLabels ()
void	evaluateNode (Encryptor &, PrivPointUtil *, helib::Ctxt, int, int)
helib::Ctxt	getNodeResult ()

Member Function Documentation

addPathLabel()

void Node::addPathLabel

(

std::string

s

)

Takes a std::string and accumulates to the path label This is a helper function when constructing the adjacency matrix.

Parameters

std::string

Returns

void

evaluateNode()

void Node::evaluateNode	(	Encryptor &	encryptor,
		PrivPointUtil *	privUtil,
		helib::Ctxt	pointCtxt,
		int	maxBits,
		int	nSlots
	)

Evaluate this node. This is the function called in parallel for parallel-processing of all Y and X nodes. Stores the temporary result in a helib::Ctxt, and this object has a pointer to that Ctxt as a parameter. It takes in encryptor and privPointUtil objects in order to make use of the functions It takes in the ctxt encoding & encrypting the user's point It takes two integers representing the bitlength and the number of slots (indices) in the ciphertext (underlying vector).

Parameters

Encryptor

& encryptor, PrivPointUtil *, helib::Ctxt, int, int

Returns

void

getIsRight()

bool Node::getIsRight

(

)

Gets the boolean variable isRight, which is true or false based upon if the Node is the right (true) or left (false) child of another node. This is a helper function when constructing the adjacency matrix.

Parameters

void

Returns

bool

getLeft()

Node * Node::getLeft

(

)

returns a pointer to the left child of this node

Parameters

void

Returns

Node *

getMatrixIndex()

int Node::getMatrixIndex

(

)

Returns the index of this node in the adjacency matrix

Parameters

void

Returns

int

getMatrixLabel()

std::string Node::getMatrixLabel

(

)

Returns the label of this node in the adjacency matrix

Parameters

void

Returns

std::string

getNodeResult()

helib::Ctxt Node::getNodeResult

(

)

This function is for when the paths are being evaluated. Assuming the node has already been evaluated, this returns the helib::Ctxt object which contains the evaluation result.

Parameters

void

Returns

helib::Ctxt

getNodeType()

NodeType Node::getNodeType

(

)

Returns the NodeType value for this node. The enum NodeType has three possible values: x, y, or leaf. The node is set based upon its type in the DAG

Parameters

void

Returns

NodeType

getPathLabels()

std::vector< std::string > Node::getPathLabels

(

)

Returns the path labels. Only used for leaf nodes. Returns a vector of strings in the case there are multiple paths to the leaf.

Parameters

void

Returns

std::vector<std::string>

getRight()

Node * Node::getRight

(

)

returns a pointer to the right child of this node

Parameters

void

Returns

Node *

getSegment()

Segment * Node::getSegment

(

)

returns a pointer to the Segment object which this Node references.

Parameters

void

Returns

Segment *

getTree()

Tree * Node::getTree

(

)

Return the pointer to the tree which contains this Node

Parameters

void

Returns

Tree *

getValue()

int Node::getValue

(

)

Returns the 'value' parameter for this node. For a X-node, this is the x-value. For a Y-Node or Leaf-Node, this is the ID.

Parameters

void

Returns

int

setIsRight()

void Node::setIsRight

(

bool

b

)

Sets the boolean variable isRight, which is true or false based upon if the Node is the right (true) or left (false) child of another node. This is a helper function when constructing the adjacency matrix.

Parameters

bool

Returns

void

setLeft()

void Node::setLeft

(

Node *

node

)

Sets a the left child of the current node. Used during the DAG/Tree construction

Parameters

Node

*

Returns

void

setMatrixParams()

void Node::setMatrixParams	(	int	v,
		std::string	s
	)

Sets this Node's parameters for use in the adjacency matrix

Parameters

int,std::string

Returns

void

setNodeType()

void Node::setNodeType

(

NodeType

t

)

Sets the NodeType value for this node. The enum NodeType has three possible values: x, y, or leaf. The node is set based upon its type in the DAG

Parameters

NodeType

Returns

void

setRight()

void Node::setRight

(

Node *

node

)

Sets a the right child of the current node. Used during the DAG/Tree construction

Parameters

Node

*

Returns

void

setSegment()

void Node::setSegment

(

Segment *

)

Sets a the Segment object of the current node. Used during the DAG/Tree construction

Parameters

Node

*

Returns

void

setValue()

void Node::setValue

(

int

v

)

Sets the 'value' parameter for this node. For a X-node, this is the x-value. For a Y-Node or Leaf-Node, this is the ID.

Parameters

int

Returns

void

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The documentation for this class was generated from the following files:

• include/Node.h
• src/Node.cpp