Package be.ugent.rml.access

Class RDBAccess

java.lang.Object

be.ugent.rml.access.RDBAccess

All Implemented Interfaces:

Access

public class RDBAccess
extends Object
implements Access

This class represents the access to a relational database.

Constructor Summary

Constructors

Constructor	Description
RDBAccess(String dsn, DatabaseType databaseType, String username, String password, String query, String contentType)	This constructor takes as arguments the dsn, database, username, password, query, and content type.

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
String	getContentType()	This method returns the content type.
DatabaseType	getDatabaseType()	This method returns the database type.
Map<String,String>	getDataTypes()	This method returns the datatypes used for the columns in the accessed database.
String	getDSN()	This method returns the DNS.
InputStream	getInputStream()	This method returns an InputStream of the results of the SQL query.
String	getPassword()	This method returns the password.
String	getQuery()	This method returns the SQL query.
String	getUsername()	This method returns the username.
int	hashCode()

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RDBAccess

public RDBAccess(String dsn,
                 DatabaseType databaseType,
                 String username,
                 String password,
                 String query,
                 String contentType)

This constructor takes as arguments the dsn, database, username, password, query, and content type.

Parameters:

dsn - the data source name.

databaseType - the database type.

username - the username of the user that executes the query.

password - the password of the above user.

query - the SQL query to use.

contentType - the content type of the results.

Method Detail

getInputStream

public InputStream getInputStream()
                           throws IOException,
                                  SQLException,
                                  ClassNotFoundException

This method returns an InputStream of the results of the SQL query.

Specified by:

getInputStream in interface Access

Returns:

an InputStream with the results.

Throws:

IOException

SQLException

ClassNotFoundException

getDataTypes

public Map<String,String> getDataTypes()

This method returns the datatypes used for the columns in the accessed database.

Specified by:

getDataTypes in interface Access

Returns:

a map of column names and their datatypes.

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

getDSN

public String getDSN()

This method returns the DNS.

Returns:

the DNS.

getDatabaseType

public DatabaseType getDatabaseType()

This method returns the database type.

Returns:

the database type.

getUsername

public String getUsername()

This method returns the username.

Returns:

the username.

getPassword

public String getPassword()

This method returns the password.

Returns:

the password.

getQuery

public String getQuery()

This method returns the SQL query.

Returns:

the SQL query.

getContentType

public String getContentType()

This method returns the content type.

Returns:

the content type.