import java.sql.*;

public class ConnectionWrapper {
    private Connection con;
    private boolean inUse;
    private int id;
    private static int counter = 1;
    
    public ConnectionWrapper(Connection con) {
	this.con = con;
	inUse = false;
	id = counter++;
    }

    public int getId() {
	return id;
    }
    
    public boolean checkOut() {
	if (inUse) return false;
	inUse = true;
	return true;
    }

    public void checkIn() {
	inUse = false;
    }

    public Connection connection() {
	return con;
    }
}