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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.maven.index;
20  
21  import java.util.List;
22  
23  import org.apache.lucene.search.Query;
24  import org.apache.maven.index.context.IndexingContext;
25  
26  /**
27   * Pageable search request. Adds "start" point, to skip wanted number of records, to implement paging. Use "count" of
28   * AbstractSearchRequest to set page size.
29   *
30   * @author cstamas
31   */
32  public class AbstractSearchPageableRequest extends AbstractSearchRequest {
33      /**
34       * The number of hit we want to skip from result set. Defaults to 0.
35       */
36      private int start;
37  
38      public AbstractSearchPageableRequest(Query query) {
39          super(query, null);
40  
41          this.start = 0;
42      }
43  
44      public AbstractSearchPageableRequest(Query query, List<IndexingContext> contexts) {
45          super(query, contexts);
46  
47          this.start = 0;
48      }
49  
50      /**
51       * Returns the "start" of wanted results calculated from result set window. Simply, the count of documents to skip.
52       *
53       * @return
54       */
55      public int getStart() {
56          return start;
57      }
58  
59      /**
60       * Sets the "start" of wanted results calculated from result set window. Simply, the count of documents to skip.
61       *
62       * @param start
63       */
64      public void setStart(int start) {
65          if (start < 0) {
66              throw new IllegalArgumentException("Start cannot be less than 0!");
67          }
68  
69          this.start = start;
70      }
71  }