sparql.convert

Class Converter

java.lang.Object

sparql.convert.Converter

Direct Known Subclasses:

ApplyConverter, SelectConverter

public abstract class Converter
extends java.lang.Object

Main class of Converter.

Constructor Summary

Constructors

Constructor and Description
Converter(Scanner scannerObj) Constructor to initiate the scanner object.

Method Summary

Methods

Modifier and Type	Method and Description
abstract java.lang.String	convert() Method to convert the SPARQL query.
void	createCsvFile(java.lang.String fileName) Create CSV file from result of query.
abstract java.sql.ResultSet	execute() Execute the converted query.
long	getConverTime() Get the time of converting query.
static Converter	getInstance(java.lang.String query, boolean fromApply) Get an instance of converter based on type of input query.
Scanner	getScanner() Get the scanner object of converter.
abstract java.lang.String	visualize() Method to visualize the result of query.

Methods inherited from class java.lang.Object

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

Constructor Detail

Converter

public Converter(Scanner scannerObj)

Constructor to initiate the scanner object.

Parameters:

scannerObj -

Method Detail

getInstance

public static Converter getInstance(java.lang.String query,
                    boolean fromApply)

Get an instance of converter based on type of input query.

Parameters:

query - String of SPARQL query.

fromApply - True if the query is inner apply query.

Returns:

Converter object.

convert

public abstract java.lang.String convert()
                                  throws java.sql.SQLException

Method to convert the SPARQL query.

Returns:

String contain SQL query.

Throws:

java.sql.SQLException

visualize

public abstract java.lang.String visualize()
                                    throws java.sql.SQLException

Method to visualize the result of query.

Returns:

JASON or XML data of visualizer.

Throws:

java.sql.SQLException

execute

public abstract java.sql.ResultSet execute()
                                    throws java.sql.SQLException

Execute the converted query.

Returns:

Resultset contains rows of result.

Throws:

java.sql.SQLException

getConverTime

public long getConverTime()

Get the time of converting query.

Returns:

Time of convert in MS.

createCsvFile

public void createCsvFile(java.lang.String fileName)
                   throws java.sql.SQLException,
                          java.io.IOException

Create CSV file from result of query.

Parameters:

fileName - Path of file.

Throws:

java.sql.SQLException

java.io.IOException

getScanner

public Scanner getScanner()

Get the scanner object of converter.

Returns:

Scanner object.