1   /*
2    * %W% %E%
3    *
4    * Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved.
5    * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
6    */
7   
8   package java.util.spi;
9   
10  import java.util.Currency;
11  import java.util.Locale;
12  
13  /**
14   * An abstract class for service providers that
15   * provide localized currency symbols for the 
16   * {@link java.util.Currency Currency} class.
17   * Note that currency symbols are considered names when determining 
18   * behaviors described in the 
19   * {@link java.util.spi.LocaleServiceProvider LocaleServiceProvider} 
20   * specification.
21   *
22   * @since        1.6
23   * @version      %W% %E%
24   */
25  public abstract class CurrencyNameProvider extends LocaleServiceProvider {
26  
27      /**
28       * Sole constructor.  (For invocation by subclass constructors, typically
29       * implicit.)
30       */
31      protected CurrencyNameProvider() {
32      }
33  
34      /**
35       * Gets the symbol of the given currency code for the specified locale.
36       * For example, for "USD" (US Dollar), the symbol is "$" if the specified
37       * locale is the US, while for other locales it may be "US$". If no
38       * symbol can be determined, null should be returned.
39       *
40       * @param currencyCode the ISO 4217 currency code, which
41       *     consists of three upper-case letters between 'A' (U+0041) and 
42       *     'Z' (U+005A)
43       * @param locale the desired locale
44       * @return the symbol of the given currency code for the specified locale, or null if
45       *     the symbol is not available for the locale
46       * @exception NullPointerException if <code>currencyCode</code> or 
47       *     <code>locale</code> is null
48       * @exception IllegalArgumentException if <code>currencyCode</code> is not in 
49       *     the form of three upper-case letters, or <code>locale</code> isn't
50       *     one of the locales returned from 
51       *     {@link java.util.spi.LocaleServiceProvider#getAvailableLocales() 
52       *     getAvailableLocales()}.
53       * @see java.util.Currency#getSymbol(java.util.Locale)
54       */
55      public abstract String getSymbol(String currencyCode, Locale locale);
56  }
57