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1   /*
2    * Copyright 2008 the original author or authors.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of 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,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package net.sf.jdigg.arguments;
17  
18  /**
19   * Abstract base class for arguments with 'sort', 'count' and 'offset'.
20   * <p>Please read this before you use the API:
21   * <a href="http://apidoc.digg.com/BasicConcepts#BePolitePlease">Be Polite, Please!</a></p>
22   * @author Philip May
23   * @since 1.0 M1
24   */
25  public abstract class AbstractSortCountOffsetArguments extends AbstractArguments {
26  
27      private static final String SORT_ARGUMENT_NAME = "sort";
28  
29      private static final String COUNT_ARGUMENT_NAME = "count";
30  
31      private static final String OFFSET_ARGUMENT_NAME = "offset";
32  
33      public AbstractSortCountOffsetArguments(String appkey) {
34          super(appkey);
35      }
36  
37      /**
38       * How to sort the results.
39       */
40      public final void setSort(String sort) {
41          addArgument(SORT_ARGUMENT_NAME, sort);
42      }
43  
44      /**
45       * Number of results to retrieve.
46       * @param count Default: 10, Maximum: 100
47       */
48      public final void setCount(int count) {
49          // TODO: maybe check if > 0
50          // TODO: maybe check if <= 100
51          addArgument(COUNT_ARGUMENT_NAME, String.valueOf(count));
52      }
53  
54      /**
55       * Offset in complete results list.
56       * @param offset Default: 0
57       */
58      public final void setOffset(int offset) {
59          // TODO: maybe check if >= 0
60          addArgument(OFFSET_ARGUMENT_NAME, String.valueOf(offset));
61      }
62  
63  }