/*
 * Fila.java
 *
 * Created on 20 de Abril de 2006, 09:08
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package business;

import java.beans.XMLEncoder;
import java.io.BufferedOutputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.util.Vector;

/**
 *
 * @author 008802
 */
public class Fila {
    private Vector<Paciente> elementos;

    /** Creates a new instance of Fila */
    public Fila() {
        elementos = new Vector<Paciente>();
    }
    
    public void insereElemento( Paciente elemento ){
        elementos.add(elemento);
    }
    
    public Paciente primeiro(){
        return elementos.firstElement();
    }
    
    public Paciente ultimo(){
        return elementos.lastElement();
    }
    
    public Paciente remove(){
        return elementos.remove(0);
    }
    
    public int getTamanho(){
        return elementos.size();
    }
    
    public Fila clone(){
        Fila f = new Fila();
        
        for( int i = 0; i < elementos.size(); i++ ){
            f.insereElemento( elementos.get(i) );
        }
        
        return f;
    }
    
    public boolean save(){
        XMLEncoder e = null;
        try {
            e = new XMLEncoder( new BufferedOutputStream( new FileOutputStream( "fila.xml" ) ) );
            e.writeObject( elementos );
            return true;
        } catch (FileNotFoundException ex) {
            return false;
        }
        finally{
            e.close();
        }
    }
}