spo.src.Generator
Class Relation

java.lang.Object
  |
  +--spo.src.Generator.Relation

public class Relation

extends java.lang.Object

A class that generates SPO relations for the SPO data management system Overall Constraints: # of random variables: 200 # of elements in context: <= 6 # of elements in conditional: <= 3 random variables: CS100 ~ CS299 context elements: year, semester, major, college, instructor, comments

Field Summary

(package private) char	CHAR_START
(package private) int	cond
(package private) int	cont
(package private) int	CONTEXT_LEN
(package private) int	m
(package private) int	n
(package private) static float	PERCENT
(package private) int	size
(package private) static char	TYPE
(package private) int	VAR_LEN
(package private) int	VAR_RATIO
(package private) int	VAR_START
(package private) int	YEAR_START

Constructor Summary

Relation(int m, int n, int size, int cont, int cond)
Initialize an instance for the class

Method Summary

java.lang.String	getConditional() Generate the conditional element for the SPOs in XML format random variables: CS100 ~ CS149
java.lang.String	getContext() Generate the context element for the SPO in XML format context elements: year, semester, major, college, instructor, comments year: 1976 ~ 2001 semester: "AA" ~ "ZZ" major: "AA" ~ "ZZ" college: "AA" ~ "ZZ" instructor: "AA" ~ "ZZ" comments: "AA" ~ "ZZ"
java.lang.String[]	getJVariables()
java.lang.String[]	getOVariables()
java.lang.String	getOXJConditional()
float[]	getProbabilities() Generate the probability for each row in the table element of the SPO
java.lang.String	getSPOs() Generate SPOs in XML format for testing
java.lang.String	getTable() Generate the table element for the SPO in XML format
char[]	getValues(int k) Generate value set of the participating random variables for the SPO
java.lang.String[]	getVariables() Generate participating random variable set for the SPO
java.lang.String[]	getXVariables()

Methods inherited from class java.lang.Object

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

Field Detail

m

int m

n

int n

size

int size

cont

int cont

cond

int cond

YEAR_START

final int YEAR_START

See Also:

Constant Field Values

CHAR_START

final char CHAR_START

See Also:

Constant Field Values

CONTEXT_LEN

final int CONTEXT_LEN

See Also:

Constant Field Values

VAR_START

final int VAR_START

See Also:

Constant Field Values

VAR_LEN

final int VAR_LEN

See Also:

Constant Field Values

VAR_RATIO

final int VAR_RATIO

See Also:

Constant Field Values

TYPE

static char TYPE

PERCENT

static float PERCENT

Constructor Detail

Relation

public Relation(int m,
                int n,
                int size,
                int cont,
                int cond)

Initialize an instance for the class

Parameters:

m - number of SPO in the relation

n - number of participating variables in each SPO

size - size of domain for participating variables

cont - max number of elements in context element

cond - max number of elements in conditional element

Method Detail

getSPOs

public java.lang.String getSPOs()

Generate SPOs in XML format for testing

getContext

public java.lang.String getContext()

Generate the context element for the SPO in XML format context elements: year, semester, major, college, instructor, comments year: 1976 ~ 2001 semester: "AA" ~ "ZZ" major: "AA" ~ "ZZ" college: "AA" ~ "ZZ" instructor: "AA" ~ "ZZ" comments: "AA" ~ "ZZ"

getTable

public java.lang.String getTable()

Generate the table element for the SPO in XML format

getConditional

public java.lang.String getConditional()

Generate the conditional element for the SPOs in XML format random variables: CS100 ~ CS149

getOXJConditional

public java.lang.String getOXJConditional()

getVariables

public java.lang.String[] getVariables()

Generate participating random variable set for the SPO

getOVariables

public java.lang.String[] getOVariables()

getXVariables

public java.lang.String[] getXVariables()

getJVariables

public java.lang.String[] getJVariables()

getValues

public char[] getValues(int k)

Generate value set of the participating random variables for the SPO

Parameters:

k - the kth row of the table element

getProbabilities

public float[] getProbabilities()

Generate the probability for each row in the table element of the SPO