1 /**
2 * Investor, the open-source investment library
3 *
4 * (C) Copyright 2008, by individual contributors as indicated by the @author tag.
5 *
6 * This library is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU Lesser General Public License as
8 * published by the Free Software Foundation; either version 2.1 of
9 * the License, or (at your option) any later version.
10 *
11 * This software is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this software; if not, write to the Free
18 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
19 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
20 */
21 package com.nickokiss.investor.fin.element.creator;
22
23 import java.math.BigDecimal;
24
25 import com.nickokiss.investor.fin.element.CashFlowStream;
26 import com.nickokiss.investor.fin.element.StreamElement;
27
28
29 /**
30 * Adds value to the value of the latest stream element
31 *
32 * @author Tomasz Koscinski <tomasz.koscinski@nickokiss.com>
33 */
34 public class AddingElementCreator implements StreamElementCreator {
35
36 private BigDecimal distance;
37 private BigDecimal addend;
38
39 public AddingElementCreator(BigDecimal distance, BigDecimal addend) {
40 this.distance = distance;
41 this.addend = addend;
42 }
43
44 @Override
45 public StreamElement create(CashFlowStream stream) {
46 BigDecimal lenght = stream.length();
47 BigDecimal lastValue = stream.getLastValue();
48 BigDecimal value = lastValue.add(addend);
49 BigDecimal time = lenght.add(distance);
50 return new StreamElement(value, time);
51 }
52 }