57 lines
1.5 KiB
Java
57 lines
1.5 KiB
Java
package it.unisa.info13d.Utility;
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import it.unisa.info13d.Articoli.Global;
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import it.unisa.info13d.Login.Entry;
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import java.io.*;
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import java.util.ArrayList;
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/**
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* Created with xgiovio.macbookair.
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* User: xgiovio
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* Date: 18/12/13
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* Time: 00:41
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*/
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/**
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*
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* Classe che rappresenta il contatore generale dell'id di ogni articolo presente in catalogo
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*
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*/
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public class IdCounter {
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/**
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* Questo metodo salva il contatore dell'id sul disco.
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*
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* @throws FileNotFoundException
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* @throws IOException
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* @throws ClassNotFoundException
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*/
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public static void save_counter() throws FileNotFoundException,IOException,ClassNotFoundException{
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File f_data = new File("id_counter");
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Integer data = Integer.valueOf(Global.getGeneral_counter());
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ObjectOutputStream writer = new ObjectOutputStream(new FileOutputStream(f_data));
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writer.writeObject(data);
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writer.close();
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}
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/**
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* Questo metodo legge il valore del contatore e lo setta.
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*
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* @throws FileNotFoundException
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* @throws IOException
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* @throws ClassNotFoundException
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*/
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public static void restore_counter() throws FileNotFoundException,IOException,ClassNotFoundException{
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File f_data = new File("id_counter");
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if ( (f_data.exists())){
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ObjectInputStream reader = new ObjectInputStream(new FileInputStream(f_data));
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Integer data = (Integer) reader.readObject();
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Global.setGeneral_counter(data.intValue());
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}else{
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Global.setGeneral_counter(0);
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}
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}
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}
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