org.problets.lib.comm.database
Class CommunicateDatabase

java.lang.Object
  org.problets.lib.comm.database.CommunicateDatabase

public class CommunicateDatabase
extends java.lang.Object

Lower class used to connect to database

Author:

Atanas Frengov

Constructor Summary

CommunicateDatabase(java.lang.String host, java.lang.String database, java.lang.String username, java.lang.String password)
constructor that connects to a database specified by the parameters

Method Summary

boolean	connect(java.lang.String host, java.lang.String database, java.lang.String username, java.lang.String password) Connect to the database based on the specified parameters
void	disconnect() Disconnect from the database
boolean	isConnected() Check if the client is still connected to the database
static void	main(java.lang.String[] args)
int	update(java.lang.String statementString) executes the statement string to update the database and returns the number of records were updated

Methods inherited from class java.lang.Object

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

Constructor Detail

CommunicateDatabase

public CommunicateDatabase(java.lang.String host,
                           java.lang.String database,
                           java.lang.String username,
                           java.lang.String password)

constructor that connects to a database specified by the parameters

Parameters:

host - the host of the connection. current is acharya.phobos.ramapo.edu

database - the database to be used

username - the username to be used

password - the password for the user to be used for the connection

Method Detail

isConnected

public boolean isConnected()

Check if the client is still connected to the database

Returns:

true if still connected, false if disconnected

connect

public boolean connect(java.lang.String host,
                       java.lang.String database,
                       java.lang.String username,
                       java.lang.String password)

Connect to the database based on the specified parameters

Parameters:

host - the host to be used

database - the database to be used

username - the username to be used for logging to the database

password - the password corresponding to the specified username

Returns:

true if the connection was succesful, false if the was an exception

disconnect

public void disconnect()

Disconnect from the database

update

public int update(java.lang.String statementString)

executes the statement string to update the database and returns the number of records were updated

Returns:

an integer representing the number of rows affected

main

public static void main(java.lang.String[] args)