microfolie/src/db/table/EcoleTable.java

package db.table;

import java.util.List;
import java.util.Optional;

import db.Table;
import db.annotation.DbTable;
import entity.Ecole;

@DbTable(name = "Ecole", entity = Ecole.class)
public class EcoleTable extends Table<Ecole> {
	
	private static EcoleTable instance;
	private static VilleTable vt = VilleTable.getInstance();
	private static NiveauTable nt = NiveauTable.getInstance();
	
	private EcoleTable() {
		// Private constructor for singleton
	}

	@Override
	public Ecole getById(long id) {
		return link(super.getById(id));
	}

	@Override
	public List<Ecole> getByField(String fieldname, Object value) {
		return link(super.getByField(fieldname, value));
	}

	@Override
	public List<Ecole> getWhere(List<String> where, List<Object> params) {
		return link(super.getWhere(where, params));
	}

	@Override
	public List<Ecole> getAll() {
		return link(super.getAll());
	}

	@Override
	public void save(Ecole obj) {
		vt.save(obj.ville);
		nt.save(obj.niveau);
		obj.villeId = obj.ville.id;
		obj.niveauId = obj.niveau.id;
		super.save(obj);
	}

	private Ecole link(Ecole obj) {
		if(obj == null) {
			return null;
		}
		obj.ville = vt.getById(obj.villeId);
		obj.niveau = nt.getById(obj.niveauId);
		return obj;
	}
	
	private List<Ecole> link(List<Ecole> list) {
		if(list.isEmpty()) {
			return list;
		}
		list.forEach(elt -> link(elt));
		return list;
	}
	
	public static EcoleTable getInstance() {
		if(instance == null) {
			instance = new EcoleTable();
		}
		return instance;
	}

}