StringArrayPropertyEditor


1   /*
2    * Copyright 2002-2006 the original author or authors.
3    * 
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    * 
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    * 
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  
17  package org.springframework.beans.propertyeditors;
18  
19  import java.beans.PropertyEditorSupport  ;
20  
21  import org.springframework.util.StringUtils;
22  
23  /**
24   * Custom {@link java.beans.PropertyEditor} for {@link String String[]} arrays.
25   * 
26   * <p>Strings must be in CSV format, with a customizable separator.
27   *
28   * @author Rod Johnson
29   * @author Juergen Hoeller
30   * @see org.springframework.util.StringUtils#delimitedListToStringArray
31   * @see org.springframework.util.StringUtils#arrayToDelimitedString
32   */
33  public class StringArrayPropertyEditor extends PropertyEditorSupport   {
34  
35      /**
36       * Default separator for splitting a String: a comma (",")
37       */
38      public static final String   DEFAULT_SEPARATOR = ",";
39  
40      private final String   separator;
41  
42  
43      /**
44       * Creates a new instance of the {@link StringArrayPropertyEditor} with the
45       * {@link #DEFAULT_SEPARATOR}.
46       */
47      public StringArrayPropertyEditor() {
48          this.separator = DEFAULT_SEPARATOR;
49      }
50  
51      /**
52       * Creates a new instance of the {@link StringArrayPropertyEditor} with
53       * the given separator.
54       * @param separator the separator to use for splitting a {@link String}
55       */
56      public StringArrayPropertyEditor(String   separator) {
57          this.separator = separator;
58      }
59  
60  
61      public void setAsText(String   text) throws IllegalArgumentException   {
62          String  [] array = StringUtils.delimitedListToStringArray(text, this.separator);
63          setValue(array);
64      }
65  
66      public String   getAsText() {
67          String  [] array = (String  []) this.getValue();
68          return StringUtils.arrayToDelimitedString(array, this.separator);
69      }
70  
71  }
72
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