sparql.convert

Class SelectConverter

java.lang.Object

sparql.convert.Converter

sparql.convert.SelectConverter

Direct Known Subclasses:

AnalyticConverter, ConstructConverter, PathConevrter

public class SelectConverter
extends Converter

Utility class to convert Select queries.

Constructor Summary

Constructors

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

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.String	cc()
java.lang.String	convert() Method to convert the SPARQL query.
java.sql.ResultSet	execute() Execute the converted query.
Node	findNode(java.lang.String label) Find nodes in root nodes.
Edge	getEdgeByPredicate(Node predicate)
void	SetAggregate(sparql.convert.Aggregate obj) Set aggregate object if query has aggregate clause.
void	setFromApply() Set true if the select query is inner another apply query.
void	setTriple(java.lang.String s, java.lang.String p, java.lang.String o)
java.lang.String	visualize() Method to visualize the result of query.

Methods inherited from class sparql.convert.Converter

createCsvFile, getConverTime, getInstance, getScanner

Methods inherited from class java.lang.Object

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

Constructor Detail

SelectConverter

public SelectConverter(Scanner scannerObj)

Constructor to initiate scanner object.

Parameters:

scannerObj -

Method Detail

SetAggregate

public void SetAggregate(sparql.convert.Aggregate obj)

Set aggregate object if query has aggregate clause.

Parameters:

obj - Object of aggregate class.

setFromApply

public void setFromApply()

Set true if the select query is inner another apply query.

convert

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

Description copied from class: Converter

Method to convert the SPARQL query.

Specified by:

convert in class Converter

Returns:

String contain SQL query.

Throws:

java.sql.SQLException

cc

public java.lang.String cc()
                    throws java.sql.SQLException

Throws:

java.sql.SQLException

setTriple

public void setTriple(java.lang.String s,
             java.lang.String p,
             java.lang.String o)

findNode

public Node findNode(java.lang.String label)

Find nodes in root nodes.

Parameters:

label - Label of node.

Returns:

visualize

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

Description copied from class: Converter

Method to visualize the result of query.

Specified by:

visualize in class Converter

Returns:

JASON or XML data of visualizer.

Throws:

java.sql.SQLException

execute

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

Description copied from class: Converter

Execute the converted query.

Specified by:

execute in class Converter

Returns:

Resultset contains rows of result.

Throws:

java.sql.SQLException

getEdgeByPredicate

public Edge getEdgeByPredicate(Node predicate)