View Javadoc
1   ////////////////////////////////////////////////////////////////////////////////
2   // checkstyle: Checks Java source code for adherence to a set of rules.
3   // Copyright (C) 2001-2017 the original author or authors.
4   //
5   // This library is free software; you can redistribute it and/or
6   // modify it under the terms of the GNU Lesser General Public
7   // License as published by the Free Software Foundation; either
8   // version 2.1 of the License, or (at your option) any later version.
9   //
10  // This library is distributed in the hope that it will be useful,
11  // but WITHOUT ANY WARRANTY; without even the implied warranty of
12  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13  // Lesser General Public License for more details.
14  //
15  // You should have received a copy of the GNU Lesser General Public
16  // License along with this library; if not, write to the Free Software
17  // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
18  ////////////////////////////////////////////////////////////////////////////////
19  
20  package com.puppycrawl.tools.checkstyle.filters;
21  
22  import java.util.Objects;
23  
24  /**
25   * This filter accepts an Integer in a range.
26   * @author Rick Giles
27   */
28  class IntRangeFilter implements IntFilter {
29      /** Lower bound of the range. */
30      private final Integer lowerBound;
31  
32      /** Upper bound of the range. */
33      private final Integer upperBound;
34  
35      /**
36       * Constructs a {@code IntRangeFilter} with a
37       * lower bound and an upper bound for the range.
38       * @param lowerBound the lower bound of the range.
39       * @param upperBound the upper bound of the range.
40       */
41      IntRangeFilter(int lowerBound, int upperBound) {
42          this.lowerBound = lowerBound;
43          this.upperBound = upperBound;
44      }
45  
46      @Override
47      public boolean accept(int intValue) {
48          return lowerBound.compareTo(intValue) <= 0
49              && upperBound.compareTo(intValue) >= 0;
50      }
51  
52      @Override
53      public int hashCode() {
54          return Objects.hash(lowerBound, upperBound);
55      }
56  
57      @Override
58      public boolean equals(Object other) {
59          if (this == other) {
60              return true;
61          }
62          if (other == null || getClass() != other.getClass()) {
63              return false;
64          }
65          final IntRangeFilter intRangeFilter = (IntRangeFilter) other;
66          return Objects.equals(lowerBound, intRangeFilter.lowerBound)
67                  && Objects.equals(upperBound, intRangeFilter.upperBound);
68      }
69  }