GenericStatementSet.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2011 Lluis Turró Cutiller <http://www.turro.org/>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.turro.financials.register;
 
import java.util.Iterator;
import java.util.List;
import java.util.TreeSet;
import org.turro.financials.account.logic.StatementEntry;
import org.turro.financials.db.FinancialsPU;
import org.turro.financials.entity.RegisterEntry;
import org.turro.jpa.Dao;
 
public abstract class GenericStatementSet extends TreeSet<StatementEntry> {
 
  public GenericStatementSet() {
  }
 
  public void loadData() {
    clear();
    Dao dao = new FinancialsPU();
    addEntries(dao);
    checkBalance();
  }
 
  public abstract List<RegisterEntry> getEntries(Dao dao);
 
  private void checkBalance() {
    Iterator<StatementEntry> it = iterator();
    double balance = 0;
    while(it.hasNext()) {
      StatementEntry se = it.next();
      se.setInheritedBalance(balance);
      balance = se.getBalance();
    }
  }
 
  private void addEntries(Dao dao) {
    for(RegisterEntry re : getEntries(dao)) {
      add(new StatementEntry(re));
    }
  }
 
}