CustomDataSource


1   /*
2    * ============================================================================
3    * GNU Lesser General Public License
4    * ============================================================================
5    *
6    * JasperReports - Free Java report-generating library.
7    * Copyright (C) 2001-2006 JasperSoft Corporation http://www.jaspersoft.com
8    * 
9    * This library is free software; you can redistribute it and/or
10   * modify it under the terms of the GNU Lesser General Public
11   * License as published by the Free Software Foundation; either
12   * version 2.1 of the License, or (at your option) any later version.
13   * 
14   * This library is distributed in the hope that it will be useful,
15   * but WITHOUT ANY WARRANTY; without even the implied warranty of
16   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17   * Lesser General Public License for more details.
18   * 
19   * You should have received a copy of the GNU Lesser General Public
20   * License along with this library; if not, write to the Free Software
21   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA.
22   * 
23   * JasperSoft Corporation
24   * 303 Second Street, Suite 450 North
25   * San Francisco, CA 94107
26   * http://www.jaspersoft.com
27   */
28  
29  import net.sf.jasperreports.engine.JRDataSource;
30  import net.sf.jasperreports.engine.JRException;
31  import net.sf.jasperreports.engine.JRField;
32  
33  
34  /**
35   * @author Teodor Danciu (teodord@users.sourceforge.net)
36   * @version $Id: CustomDataSource.java 1229 2006-04-19 13:27:35 +0300 (Wed, 19 Apr 2006) teodord $
37   */
38  public class CustomDataSource implements JRDataSource
39  {
40  
41  
42      /**
43       *
44       */
45      private Object  [][] data =
46          {
47              {"Berne", new Integer  (22), "Bill Ott", "250 - 20th Ave."},
48              {"Berne", new Integer  (9), "James Schneider", "277 Seventh Av."},
49              {"Boston", new Integer  (32), "Michael Ott", "339 College Av."},
50              {"Boston", new Integer  (23), "Julia Heiniger", "358 College Av."},
51              {"Chicago", new Integer  (39), "Mary Karsen", "202 College Av."},
52              {"Chicago", new Integer  (35), "George Karsen", "412 College Av."},
53              {"Chicago", new Integer  (11), "Julia White", "412 Upland Pl."},
54              {"Dallas", new Integer  (47), "Janet Fuller", "445 Upland Pl."},
55              {"Dallas", new Integer  (43), "Susanne Smith", "2 Upland Pl."},
56              {"Dallas", new Integer  (40), "Susanne Miller", "440 - 20th Ave."},
57              {"Dallas", new Integer  (36), "John Steel", "276 Upland Pl."},
58              {"Dallas", new Integer  (37), "Michael Clancy", "19 Seventh Av."},
59              {"Dallas", new Integer  (19), "Susanne Heiniger", "86 - 20th Ave."},
60              {"Dallas", new Integer  (10), "Anne Fuller", "135 Upland Pl."},
61              {"Dallas", new Integer  (4), "Sylvia Ringer", "365 College Av."},
62              {"Dallas", new Integer  (0), "Laura Steel", "429 Seventh Av."},
63              {"Lyon", new Integer  (38), "Andrew Heiniger", "347 College Av."},
64              {"Lyon", new Integer  (28), "Susanne White", "74 - 20th Ave."},
65              {"Lyon", new Integer  (17), "Laura Ott", "443 Seventh Av."},
66              {"Lyon", new Integer  (2), "Anne Miller", "20 Upland Pl."},
67              {"New York", new Integer  (46), "Andrew May", "172 Seventh Av."},
68              {"New York", new Integer  (44), "Sylvia Ott", "361 College Av."},
69              {"New York", new Integer  (41), "Bill King", "546 College Av."},
70              {"Oslo", new Integer  (45), "Janet May", "396 Seventh Av."},
71              {"Oslo", new Integer  (42), "Robert Ott", "503 Seventh Av."},
72              {"Paris", new Integer  (25), "Sylvia Steel", "269 College Av."},
73              {"Paris", new Integer  (18), "Sylvia Fuller", "158 - 20th Ave."},
74              {"Paris", new Integer  (5), "Laura Miller", "294 Seventh Av."},
75              {"San Francisco", new Integer  (48), "Robert White", "549 Seventh Av."},
76              {"San Francisco", new Integer  (7), "James Peterson", "231 Upland Pl."}
77          };
78  
79      private int index = -1;
80      
81  
82      /**
83       *
84       */
85      public CustomDataSource()
86      {
87      }
88  
89  
90      /**
91       *
92       */
93      public boolean next() throws JRException
94      {
95          index++;
96  
97          return (index < data.length);
98      }
99  
100 
101     /**
102      *
103      */
104     public Object   getFieldValue(JRField field) throws JRException
105     {
106         Object   value = null;
107         
108         String   fieldName = field.getName();
109         
110         if ("the_city".equals(fieldName))
111         {
112             value = data[index][0];
113         }
114         else if ("id".equals(fieldName))
115         {
116             value = data[index][1];
117         }
118         else if ("name".equals(fieldName))
119         {
120             value = data[index][2];
121         }
122         else if ("street".equals(fieldName))
123         {
124             value = data[index][3];
125         }
126         
127         return value;
128     }
129 
130 
131 }
132
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