| /* |
| * Copyright 2004 The Apache Software Foundation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package sessions; |
| |
| import javax.servlet.http.*; |
| import java.util.Vector; |
| import java.util.Enumeration; |
| |
| public class DummyCart { |
| Vector v = new Vector(); |
| String submit = null; |
| String item = null; |
| |
| private void addItem(String name) { |
| v.addElement(name); |
| } |
| |
| private void removeItem(String name) { |
| v.removeElement(name); |
| } |
| |
| public void setItem(String name) { |
| item = name; |
| } |
| |
| public void setSubmit(String s) { |
| submit = s; |
| } |
| |
| public String[] getItems() { |
| String[] s = new String[v.size()]; |
| v.copyInto(s); |
| return s; |
| } |
| |
| public void processRequest(HttpServletRequest request) { |
| // null value for submit - user hit enter instead of clicking on |
| // "add" or "remove" |
| if (submit == null) |
| addItem(item); |
| |
| if (submit.equals("add")) |
| addItem(item); |
| else if (submit.equals("remove")) |
| removeItem(item); |
| |
| // reset at the end of the request |
| reset(); |
| } |
| |
| // reset |
| private void reset() { |
| submit = null; |
| item = null; |
| } |
| } |