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JavaTM 2 Platform Std. Ed. v1.6.0

java.util
Class ListResourceBundle

java.lang.Object
  extended by java.util.ResourceBundle
      extended by java.util.ListResourceBundle
Direct Known Subclasses:
AccessibleResourceBundle

public abstract class ListResourceBundle
extends ResourceBundle

ListResourceBundle is an abstract subclass of ResourceBundle that manages resources for a locale in a convenient and easy to use list. See ResourceBundle for more information about resource bundles in general.

Subclasses must override getContents and provide an array, where each item in the array is a pair of objects. The first element of each pair is the key, which must be a String, and the second element is the value associated with that key.

The following example shows two members of a resource bundle family with the base name "MyResources". "MyResources" is the default member of the bundle family, and "MyResources_fr" is the French member. These members are based on ListResourceBundle (a related example shows how you can add a bundle to this family that's based on a properties file). The keys in this example are of the form "s1" etc. The actual keys are entirely up to your choice, so long as they are the same as the keys you use in your program to retrieve the objects from the bundle. Keys are case-sensitive.

 
 public class MyResources extends ListResourceBundle {
     protected Object[][] getContents() {
         return new Object[][] = {
         // LOCALIZE THIS
             {"s1", "The disk \"{1}\" contains {0}."},  // MessageFormat pattern
             {"s2", "1"},                               // location of {0} in pattern
             {"s3", "My Disk"},                         // sample disk name
             {"s4", "no files"},                        // first ChoiceFormat choice
             {"s5", "one file"},                        // second ChoiceFormat choice
             {"s6", "{0,number} files"},                // third ChoiceFormat choice
             {"s7", "3 Mar 96"},                        // sample date
             {"s8", new Dimension(1,5)}                 // real object, not just string
         // END OF MATERIAL TO LOCALIZE
         };
     }
 }

 public class MyResources_fr extends ListResourceBundle {
     protected Object[][] getContents() {
         return new Object[][] = {
         // LOCALIZE THIS
             {"s1", "Le disque \"{1}\" {0}."},          // MessageFormat pattern
             {"s2", "1"},                               // location of {0} in pattern
             {"s3", "Mon disque"},                      // sample disk name
             {"s4", "ne contient pas de fichiers"},     // first ChoiceFormat choice
             {"s5", "contient un fichier"},             // second ChoiceFormat choice
             {"s6", "contient {0,number} fichiers"},    // third ChoiceFormat choice
             {"s7", "3 mars 1996"},                     // sample date
             {"s8", new Dimension(1,3)}                 // real object, not just string
         // END OF MATERIAL TO LOCALIZE
         };
     }
 }
 

Since:
JDK1.1
See Also:
ResourceBundle, PropertyResourceBundle

Nested Class Summary
 
Nested classes/interfaces inherited from class java.util.ResourceBundle
ResourceBundle.Control
 
Field Summary
 
Fields inherited from class java.util.ResourceBundle
parent
 
Constructor Summary
ListResourceBundle()
          Sole constructor.
 
Method Summary
protected abstract  Object[][] getContents()
          Returns an array in which each item is a pair of objects in an Object array.
 Enumeration<String> getKeys()
          Returns an Enumeration of the keys contained in this ResourceBundle and its parent bundles.
 Object handleGetObject(String key)
          Gets an object for the given key from this resource bundle.
protected  Set<String> handleKeySet()
          Returns a Set of the keys contained only in this ResourceBundle.
 
Methods inherited from class java.util.ResourceBundle
clearCache, clearCache, containsKey, getBundle, getBundle, getBundle, getBundle, getBundle, getBundle, getLocale, getObject, getString, getStringArray, keySet, setParent
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

ListResourceBundle

public ListResourceBundle()
Sole constructor. (For invocation by subclass constructors, typically implicit.)

Method Detail

handleGetObject

public final Object handleGetObject(String key)
Description copied from class: ResourceBundle
Gets an object for the given key from this resource bundle. Returns null if this resource bundle does not contain an object for the given key.

Specified by:
handleGetObject in class ResourceBundle
Parameters:
key - the key for the desired object
Returns:
the object for the given key, or null

getKeys

public Enumeration<String> getKeys()
Returns an Enumeration of the keys contained in this ResourceBundle and its parent bundles.

Specified by:
getKeys in class ResourceBundle
Returns:
an Enumeration of the keys contained in this ResourceBundle and its parent bundles.
See Also:
ResourceBundle.keySet()

handleKeySet

protected Set<String> handleKeySet()
Returns a Set of the keys contained only in this ResourceBundle.

Overrides:
handleKeySet in class ResourceBundle
Returns:
a Set of the keys contained only in this ResourceBundle
Since:
1.6
See Also:
ResourceBundle.keySet()

getContents

protected abstract Object[][] getContents()
Returns an array in which each item is a pair of objects in an Object array. The first element of each pair is the key, which must be a String, and the second element is the value associated with that key. See the class description for details.

Returns:
an array of an Object array representing a key-value pair.

Copyright 2003 Sun Microsystems, Inc. All rights reserved