com.huguesjohnson.jail.jdt
Class DecisionTreeNode

java.lang.Object
  |
  +--com.huguesjohnson.jail.jdt.DecisionTreeNode

All Implemented Interfaces:

java.lang.Cloneable, java.io.Serializable

public class DecisionTreeNode

extends java.lang.Object

implements java.lang.Cloneable, java.io.Serializable

JdtDecisionTreeNode, representation for tree node

See Also:

Serialized Form

Field Summary

static int	CHILD_LEFT left child index
static int	CHILD_RIGHT right child index
static int	OP_EQUAL not used in current project, but could be used for a more advanced project
static int	OP_GREATER_THAN only operation used at present time
static int	OP_LESS_THAN not used in current project, but could be used for a more advanced project

Constructor Summary

DecisionTreeNode()
constructor, creates a node with no parent

DecisionTreeNode(DecisionTreeNode parent)
constructor, creates node with a parent

Method Summary

java.lang.Object	clone() clone
int	getAttributeIndex() retrieves attribute index for current node
DecisionTreeNode	getChildNode(int direction) retrieves a child node
java.lang.String	getClassification() retreives classification of node
int	getCompareOperator() retrieves comparision operator for current node
double	getCompareValue() retrieves compare value for current node
DecisionTreeNode	getParentNode() retrieves the parent node
boolean	isLeaf() determines if node is a leaf node
boolean	isRoot() determines if node is a root node
void	setAttributeIndex(int attributeIndex) sets attribute index for node
void	setChildNode(int direction, DecisionTreeNode node) appends a child to the current node
void	setClassification(java.lang.String classification) sets classification for node
void	setCompareOperator(int operator) sets comparision operator for node
void	setCompareValue(double compareValue) sets compare value for node
java.lang.String	toString() returns a string representation of the node

Methods inherited from class java.lang.Object

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

Field Detail

CHILD_LEFT

public static final int CHILD_LEFT

left child index

CHILD_RIGHT

public static final int CHILD_RIGHT

right child index

OP_EQUAL

public static final int OP_EQUAL

not used in current project, but could be used for a more advanced project

OP_GREATER_THAN

public static final int OP_GREATER_THAN

only operation used at present time

OP_LESS_THAN

public static final int OP_LESS_THAN

not used in current project, but could be used for a more advanced project

Constructor Detail

DecisionTreeNode

public DecisionTreeNode()

constructor, creates a node with no parent

DecisionTreeNode

public DecisionTreeNode(DecisionTreeNode parent)

constructor, creates node with a parent

Parameters:

parent - parent node

Method Detail

clone

public java.lang.Object clone()

clone

Overrides:

clone in class java.lang.Object

Returns:

clone of object

isRoot

public boolean isRoot()

determines if node is a root node

Returns:

true if node is a root node (no parent)

isLeaf

public boolean isLeaf()

determines if node is a leaf node

Returns:

true if node is a leaf node (no no children)

setChildNode

public void setChildNode(int direction,
                         DecisionTreeNode node)

appends a child to the current node

Parameters:

direction - CHILD_LEFT or CHILD_RIGHT

node - the node to attach

getParentNode

public DecisionTreeNode getParentNode()

retrieves the parent node

Returns:

parent node

getChildNode

public DecisionTreeNode getChildNode(int direction)

retrieves a child node

Parameters:

direction - which child to retrieve

Returns:

tree node or null if no child exists

setClassification

public void setClassification(java.lang.String classification)

sets classification for node

Parameters:

classification - new classification for node

getClassification

public java.lang.String getClassification()

retreives classification of node

Returns:

classification of node

setAttributeIndex

public void setAttributeIndex(int attributeIndex)

sets attribute index for node

Parameters:

attributeIndex - new attribute index for node

getAttributeIndex

public int getAttributeIndex()

retrieves attribute index for current node

Returns:

attribute index

setCompareValue

public void setCompareValue(double compareValue)

sets compare value for node

Parameters:

compareValue - new compare value for node

getCompareValue

public double getCompareValue()

retrieves compare value for current node

Returns:

compare value

setCompareOperator

public void setCompareOperator(int operator)

sets comparision operator for node

Parameters:

operator - new comparision operator for node

getCompareOperator

public int getCompareOperator()

retrieves comparision operator for current node

Returns:

compare operator

toString

public java.lang.String toString()

returns a string representation of the node

Overrides:

toString in class java.lang.Object

Returns:

representation of node