View Javadoc

1   /* TextType
2    *
3    * $Id: TextField.java 3799 2005-09-01 18:13:23Z stack-sf $
4    *
5    * Created on Mar 26, 2004
6    *
7    * Copyright (C) 2004 Internet Archive.
8    *
9    * This file is part of the Heritrix web crawler (crawler.archive.org).
10   *
11   * Heritrix is free software; you can redistribute it and/or modify
12   * it under the terms of the GNU Lesser Public License as published by
13   * the Free Software Foundation; either version 2.1 of the License, or
14   * any later version.
15   *
16   * Heritrix is distributed in the hope that it will be useful,
17   * but WITHOUT ANY WARRANTY; without even the implied warranty of
18   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19   * GNU Lesser Public License for more details.
20   *
21   * You should have received a copy of the GNU Lesser Public License
22   * along with Heritrix; if not, write to the Free Software
23   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
24   */
25  package org.archive.crawler.settings;
26  
27  import java.io.Serializable;
28  
29  import org.archive.util.TextUtils;
30  
31  /*** Class to hold values for text fields.
32   *
33   * Objects of this class could be used instead of {@link java.lang.String} to
34   * hold text strings with newlines in it. SimpleTypes with values wrapped in
35   * objects of this class will show up in the UI as multiline text areas.
36   *
37   * @author John Erik Halse
38   *
39   */
40  public class TextField implements CharSequence, Serializable {
41      private static final long serialVersionUID = -2853908867414076703L;
42      private String value;
43  
44      /*** Constructs a new TextField object.
45       *
46       * @param value the string represented by this TextField.
47       */
48      public TextField(String value) {
49          this.value = TextUtils.replaceAll("\r\n", value, "\n").trim();
50      }
51  
52      /* (non-Javadoc)
53       * @see java.lang.CharSequence#length()
54       */
55      public int length() {
56          return value.length();
57      }
58  
59      /* (non-Javadoc)
60       * @see java.lang.CharSequence#charAt(int)
61       */
62      public char charAt(int index) {
63          return value.charAt(index);
64      }
65  
66      /* (non-Javadoc)
67       * @see java.lang.CharSequence#subSequence(int, int)
68       */
69      public CharSequence subSequence(int start, int end) {
70          return value.subSequence(start, end);
71      }
72  
73      public boolean equals(Object obj) {
74          return obj instanceof TextField && value.equals(obj);
75      }
76  
77      /* (non-Javadoc)
78       * @see java.lang.Object#hashCode()
79       */
80      public int hashCode() {
81          return value.hashCode();
82      }
83  
84      /* (non-Javadoc)
85       * @see java.lang.Object#toString()
86       */
87      public String toString() {
88          return value;
89      }
90  }