MultipleChoiceInputRequest


1   /*
2    *  Licensed to the Apache Software Foundation (ASF) under one or more
3    *  contributor license agreements.  See the NOTICE file distributed with
4    *  this work for additional information regarding copyright ownership.
5    *  The ASF licenses this file to You under the Apache License, Version 2.0
6    *  (the "License"); you may not use this file except in compliance with
7    *  the License.  You may obtain a copy of the License at
8    *
9    *      http://www.apache.org/licenses/LICENSE-2.0
10   *
11   *  Unless required by applicable law or agreed to in writing, software
12   *  distributed under the License is distributed on an "AS IS" BASIS,
13   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   *  See the License for the specific language governing permissions and
15   *  limitations under the License.
16   *
17   */
18  
19  package org.apache.tools.ant.input;
20  
21  import java.util.Vector  ;
22  
23  /**
24   * Encapsulates an input request.
25   *
26   * @since Ant 1.5
27   */
28  public class MultipleChoiceInputRequest extends InputRequest {
29      private Vector   choices = new Vector  ();
30  
31      /**
32       * @param prompt The prompt to show to the user.  Must not be null.
33       * @param choices holds all input values that are allowed.
34       *                Must not be null.
35       */
36      public MultipleChoiceInputRequest(String   prompt, Vector   choices) {
37          super(prompt);
38          if (choices == null) {
39              throw new IllegalArgumentException  ("choices must not be null");
40          }
41          this.choices = choices;
42      }
43  
44      /**
45       * @return The possible values.
46       */
47      public Vector   getChoices() {
48          return choices;
49      }
50  
51      /**
52       * @return true if the input is one of the allowed values.
53       */
54      public boolean isInputValid() {
55          return choices.contains(getInput()) || ("".equals(getInput()) && getDefaultValue() != null);
56      }
57  }
58
A to Z: JavaDoc & Examples Daily Java News & Articles Open Source Projects Open Source Codes Free Computer Books Remove Frame
Popular Tags