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Java > Open Source Codes > com > google > gwt > util > tools > ArgHandlerString


1 /*
2  * Copyright 2006 Google Inc.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not
5  * use this file except in compliance with the License. You may obtain a copy of
6  * the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13  * License for the specific language governing permissions and limitations under
14  * the License.
15  */
16 package com.google.gwt.util.tools;
17
18 /**
19  * Argument handler for processing flags that take a string as their parameter.
20  */
21 public abstract class ArgHandlerString extends ArgHandler {
22
23   public String JavaDoc[] getDefaultArgs() {
24     return null;
25   }
26
27   public int handle(String JavaDoc[] args, int startIndex) {
28     if (startIndex + 1 < args.length) {
29       if (!setString(args[startIndex + 1])) {
30         return -1;
31       }
32       return 1;
33     }
34
35     System.err.println(getTag() + " must be followed by an argument for "
36       + getTagArgs()[0]);
37     return -1;
38   }
39
40   public abstract boolean setString(String JavaDoc str);
41
42 }
43
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