org.sourceforge.xsparql.sql

Class SQLQuery

java.lang.Object

org.sourceforge.xsparql.sql.SQLQuery

public class SQLQuery
extends Object

Class used to perform SQL queries via JDBC.

Author:

Nuno Lopes

Constructor Summary

Constructors

Constructor and Description
SQLQuery(String driver, String dbServer, String dbPort, String database, String instance, String username, String password) Creates a new SQLQuery instance.

Method Summary

Modifier and Type	Method and Description
void	close() Closes the connection to the database
List<String>	getRelationAttributes(List<Pair<String,String>> relation) Used in the XSPARQLRewriter.g
String	getRelationInfoAsXMLString(List<String> relations) Returns an XML string containing the attributes of the specified relations.
List<String>	getRelations() Returns a list of String containing the relations present in the database
String	getRelationsAsXMLString() Returns an XML string containing the relations present in the database
ResultSet	getResults(String query) Evaluates an SQL query.
Document	getResultsAsDocument(String query) Evaluates a SQL query and return the XML format.
Document	getResultsAsXML(String query)
String	getResultsAsXMLString(String query) Evaluates a SQL query and return the XML format.

Methods inherited from class java.lang.Object

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

Constructor Detail

SQLQuery

public SQLQuery(String driver,
                String dbServer,
                String dbPort,
                String database,
                String instance,
                String username,
                String password)

Creates a new SQLQuery instance.

Method Detail

close

public void close()

Closes the connection to the database

getResults

public ResultSet getResults(String query)
                     throws ClassNotFoundException

Evaluates an SQL query.

Returns:

XML ResultSet with the results of the query

Throws:

ClassNotFoundException

getResultsAsXMLString

public String getResultsAsXMLString(String query)

Evaluates a SQL query and return the XML format.

Returns:

XML string with the results of the query

getResultsAsDocument

public Document getResultsAsDocument(String query)

Evaluates a SQL query and return the XML format.

Returns:

XML string with the results of the query

getResultsAsXML

public Document getResultsAsXML(String query)

getRelationAttributes

public List<String> getRelationAttributes(List<Pair<String,String>> relation)

Used in the XSPARQLRewriter.g

getRelationInfoAsXMLString

public String getRelationInfoAsXMLString(List<String> relations)

Returns an XML string containing the attributes of the specified relations.

Returns:

XML string

getRelations

public List<String> getRelations()

Returns a list of String containing the relations present in the database

Returns:

List of strings

getRelationsAsXMLString

public String getRelationsAsXMLString()

Returns an XML string containing the relations present in the database

Returns:

XML string