ListResourceBundle

public abstract class ListResourceBundle
extends ResourceBundle

java.lang.Object
   ↳ java.util.ResourceBundle
     ↳ java.util.ListResourceBundle


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
         };
     }
 }
 

The implementation of a ListResourceBundle subclass must be thread-safe if it's simultaneously used by multiple threads. The default implementations of the methods in this class are thread-safe.

Summary

Inherited fields

protected ResourceBundle parent

The parent bundle of this bundle.

Public constructors

ListResourceBundle()

Sole constructor.

Public methods

Enumeration<String> getKeys()

Returns an Enumeration of the keys contained in this ResourceBundle and its parent bundles.

final Object handleGetObject(String key)

Gets an object for the given key from this resource bundle.

Protected methods

abstract Object[][] getContents()

Returns an array in which each item is a pair of objects in an Object array.

Set<String> handleKeySet()

Returns a Set of the keys contained only in this ResourceBundle.

Inherited methods

static final void clearCache(ClassLoader loader)

Removes all resource bundles from the cache that have been loaded by the given class loader.

static final void clearCache()

Removes all resource bundles from the cache that have been loaded using the caller's class loader.

boolean containsKey(String key)

Determines whether the given key is contained in this ResourceBundle or its parent bundles.

String getBaseBundleName()

Returns the base name of this bundle, if known, or null if unknown.

static final ResourceBundle getBundle(String baseName, Locale targetLocale, ResourceBundle.Control control)

Returns a resource bundle using the specified base name, target locale and control, and the caller's class loader.

static final ResourceBundle getBundle(String baseName, Locale locale)

Gets a resource bundle using the specified base name and locale, and the caller's class loader.

static final ResourceBundle getBundle(String baseName)

Gets a resource bundle using the specified base name, the default locale, and the caller's class loader.

static ResourceBundle getBundle(String baseName, Locale targetLocale, ClassLoader loader, ResourceBundle.Control control)

Returns a resource bundle using the specified base name, target locale, class loader and control.

static ResourceBundle getBundle(String baseName, Locale locale, ClassLoader loader)

Gets a resource bundle using the specified base name, locale, and class loader.

static final ResourceBundle getBundle(String baseName, ResourceBundle.Control control)

Returns a resource bundle using the specified base name, the default locale and the specified control.

abstract Enumeration<String> getKeys()

Returns an enumeration of the keys.

Locale getLocale()

Returns the locale of this resource bundle.

final Object getObject(String key)

Gets an object for the given key from this resource bundle or one of its parents.

final String getString(String key)

Gets a string for the given key from this resource bundle or one of its parents.

final String[] getStringArray(String key)

Gets a string array for the given key from this resource bundle or one of its parents.

abstract Object handleGetObject(String key)

Gets an object for the given key from this resource bundle.

Set<String> handleKeySet()

Returns a Set of the keys contained only in this ResourceBundle.

Set<String> keySet()

Returns a Set of all keys contained in this ResourceBundle and its parent bundles.

void setParent(ResourceBundle parent)

Sets the parent bundle of this bundle.

Object clone()

Creates and returns a copy of this object.

boolean equals(Object obj)

Indicates whether some other object is "equal to" this one.

void finalize()

Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.

final Class<?> getClass()

Returns the runtime class of this Object.

int hashCode()

Returns a hash code value for the object.

final void notify()

Wakes up a single thread that is waiting on this object's monitor.

final void notifyAll()

Wakes up all threads that are waiting on this object's monitor.

String toString()

Returns a string representation of the object.

final void wait(long timeoutMillis, int nanos)

Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

final void wait(long timeoutMillis)

Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

final void wait()

Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

Public constructors

ListResourceBundle

Added in API level 1
public ListResourceBundle ()

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

Public methods

getKeys

Added in API level 1
public Enumeration<String> getKeys ()

Returns an Enumeration of the keys contained in this ResourceBundle and its parent bundles.

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

handleGetObject

Added in API level 1
public final Object handleGetObject (String key)

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.

Parameters
key String: the key for the desired object

Returns
Object the object for the given key, or null

Protected methods

getContents

Added in API level 1
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
Object[][] an array of an Object array representing a key-value pair.

handleKeySet

Added in API level 9
protected Set<String> handleKeySet ()

Returns a Set of the keys contained only in this ResourceBundle.

Returns
Set<String> a Set of the keys contained only in this ResourceBundle