ValidatorUtil


1   package dinamica;
2   
3   import java.util.Date  ;
4   
5   /**
6    * Utility class to validate String values against data types
7    * in order to test if the value represents de data type (dates, numbers, etc.)
8    * <br>
9    * Creation date: 25/10/2003<br>
10   * Last Update: 25/10/2003<br>
11   * (c) 2003 Martin Cordova<br>
12   * This code is released under the LGPL license<br>
13   * @author Martin Cordova
14   */
15  public class ValidatorUtil
16  {
17  
18      /**
19       * Test a String value to check if it does represent
20       * a valid date according to a specific format
21       * @param dateValue Value to test
22       * @param dateFormat Date format used to represent a date in value
23       * @return NULL if value can't be converted
24       */
25      public static Date   testDate(String   dateValue, String   dateFormat)
26      {
27          
28          try
29          {
30              Date   d = StringUtil.getDateObject(dateValue, dateFormat);
31              return d;
32          }
33          catch (Throwable   e)
34          {
35              return null;
36          }
37  
38      }
39  
40      /**
41       * Test a String value to check if it does represent
42       * a valid double number
43       * @param doubleValue Value to test
44       * @return NULL if value can't be converted
45       */
46      public static Double   testDouble(String   doubleValue)
47      {
48  
49          try
50          {
51              double d = Double.parseDouble(doubleValue);
52              return new Double  (d);
53          }
54          catch (Throwable   e)
55          {
56              return null;
57          }
58  
59      }
60  
61      /**
62       * Test a String value to check if it does represent
63       * a valid integer number
64       * @param integerValue Value to test
65       * @return NULL if value can't be converted
66       */
67      public static Integer   testInteger(String   integerValue)
68      {
69  
70          try
71          {
72              int i = Integer.parseInt(integerValue);
73              return new Integer  (i);
74          }
75          catch (Throwable   e)
76          {
77              return null;
78          }
79  
80      }
81  
82  }
83
A to Z: JavaDoc & Examples Daily Java News & Articles Open Source Projects Open Source Codes Free Computer Books Remove Frame
Popular Tags