sparql.convert

Class PathHelper

java.lang.Object

sparql.convert.PathHelper

Direct Known Subclasses:

TemporalPathHelper

public class PathHelper
extends java.lang.Object

Utility class to convert regular expression of path queries.

Constructor Summary

Constructors

Constructor and Description
PathHelper() Default constructor.

Method Summary

Methods

Modifier and Type	Method and Description
java.util.ArrayList<java.util.List<java.lang.String>>	findPath() Generate path nodes.
Path	generatePath() Generate Path object.
void	setPathName(java.lang.String name) Set the path name.
void	setRegularExpression(java.util.List<java.lang.String> rgPattern) Set the Regular Expression.
void	setStartEndNodes(java.lang.String sqlQuery, java.util.LinkedList<Node> columns) Method to find and set candidates nodes to be start and end node of path based on regular expression.

Methods inherited from class java.lang.Object

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

Constructor Detail

PathHelper

public PathHelper()
           throws java.sql.SQLException,
                  java.lang.ClassNotFoundException

Default constructor.

Throws:

java.sql.SQLException

java.lang.ClassNotFoundException

Method Detail

setPathName

public void setPathName(java.lang.String name)

Set the path name.

Parameters:

name - String contains the name of path node.

setStartEndNodes

public void setStartEndNodes(java.lang.String sqlQuery,
                    java.util.LinkedList<Node> columns)
                      throws java.sql.SQLException

Method to find and set candidates nodes to be start and end node of path based on regular expression.

Parameters:

sqlQuery - String SQL query that indicates the start and end nodes of path node.

columns - Name of columns in view that contains start and end nodes.

Throws:

java.sql.SQLException

setRegularExpression

public void setRegularExpression(java.util.List<java.lang.String> rgPattern)

Set the Regular Expression.

Parameters:

rgPattern - list of string contains pattern.(separated by 'SPACE')

findPath

public java.util.ArrayList<java.util.List<java.lang.String>> findPath()
                                                               throws java.sql.SQLException

Generate path nodes.

Returns:

List of path nodes.

Throws:

java.sql.SQLException

generatePath

public Path generatePath()
                  throws java.lang.NumberFormatException,
                         java.sql.SQLException

Generate Path object.

Returns:

Path object contains path nodes.

Throws:

java.lang.NumberFormatException

java.sql.SQLException