/*
* DBObject.java
* Base object template for Database
* objects. This object defines the basic
* functions for connecting to the database
* that all the other object classes use.
*/
package base;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
public class DBObject {
//Database Variables all these
//are set and used in the getConn()
//function.
private Connection con;
private String url;
private String user;
private String pass;
protected Statement stmt;
protected boolean DBWrite;
protected int id;
public DBObject(){
//Connection url for test DB on Localhost
url = "jdbc:mysql://localhost:3306/test";
//Set username and Password
user = "sheller";
pass = "apassword!";
//Default behavior is to write to database
DBWrite = true;
}
public void getConn(){
//Register MySQL Driver
try {Class.forName("com.mysql.jdbc.Driver");}
catch (Exception e){ e.printStackTrace(); }
//Connect to Database
try { con = DriverManager.getConnection(url, user, pass);}
catch(Exception e){ e.printStackTrace(); }
//Create a statement object for use
try { stmt = con.createStatement(); }
catch(Exception e){e.printStackTrace(); }
}
//Query function to create new
//database entries, this returns the
//ID of the created object
protected int create(String q){
int id = 0;
try {
//execute the statement
stmt.execute(q);
//get the id of the created object
stmt.execute("SELECT LAST_INSERT_ID()");
//get the result set
ResultSet f = stmt.getResultSet();
//get the ID
while(f.next()){id = f.getInt(1);}
return(id);
}
catch(Exception e){
e.printStackTrace();
return(id);
}
}
//General purpose query function
//returns a ResultSet object with
//the data returned
protected ResultSet query(String q){
ResultSet f = null;
try {
//execute the statement
stmt.execute(q);
//get the result set and return it
f = stmt.getResultSet();
return(f);
}
catch(Exception e){
e.printStackTrace();
return(f);
}
}
//Function to set the DBWrite Boolean. This
//is used to determine whether or not the
//database gets written.
public boolean Write(boolean b){
DBWrite = b;
return DBWrite;
}
//Function to return the status of
//the DBWrite boolean
public boolean Write(){
return DBWrite;
}
//******NOT YET WRITTEN********//
//Function to write all current
//active data to the database. Used
//when changes are made with DBWrite
//set to false.
public boolean SaveDB(){
if (true){ return true; }
else { return false; }
}
public int getID(){
return id;
}
}
syntax highlighted by Code2HTML, v. 0.93pm6