java.lang.Object
- java.util.ResourceBundle
- - org.springframework.context.support.MessageSourceResourceBundle

```
public class MessageSourceResourceBundle
extends ResourceBundle
```
Helper class that allows for accessing a Spring MessageSource as a ResourceBundle. Used for example to expose a Spring MessageSource to JSTL web views.
Since:
27.02.2003
Author:
Juergen Hoeller
See Also:
MessageSource, ResourceBundle, JstlUtils.exposeLocalizationContext(javax.servlet.http.HttpServletRequest, org.springframework.context.MessageSource)

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

Constructors
Constructor	Description
`MessageSourceResourceBundle(MessageSource source, Locale locale)`	Create a new MessageSourceResourceBundle for the given MessageSource and Locale.
`MessageSourceResourceBundle(MessageSource source, Locale locale, ResourceBundle parent)`	Create a new MessageSourceResourceBundle for the given MessageSource and Locale.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`containsKey(String key)`	This implementation checks whether the target MessageSource can resolve a message for the given key, translating `NoSuchMessageException` accordingly.
`Enumeration<String>`	`getKeys()`	This implementation throws `UnsupportedOperationException`, as a MessageSource does not allow for enumerating the defined message codes.
`Locale`	`getLocale()`	This implementation exposes the specified Locale for introspection through the standard `ResourceBundle.getLocale()` method.
`protected Object`	`handleGetObject(String key)`	This implementation resolves the code in the MessageSource.

Methods inherited from class java.util.ResourceBundle
clearCache, clearCache, getBaseBundleName, getBundle, getBundle, getBundle, getBundle, getBundle, getBundle, getBundle, getBundle, getObject, getString, getStringArray, handleKeySet, keySet, setParent

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - MessageSourceResourceBundle
```
public MessageSourceResourceBundle(MessageSource source,
                                   Locale locale)
```
    Create a new MessageSourceResourceBundle for the given MessageSource and Locale.
    Parameters:
    source - the MessageSource to retrieve messages from
    locale - the Locale to retrieve messages for
  - MessageSourceResourceBundle
```
public MessageSourceResourceBundle(MessageSource source,
                                   Locale locale,
                                   ResourceBundle parent)
```
    Create a new MessageSourceResourceBundle for the given MessageSource and Locale.
    Parameters:
    source - the MessageSource to retrieve messages from
    locale - the Locale to retrieve messages for
    parent - the parent ResourceBundle to delegate to if no local message found
- Method Detail
  - handleGetObject
```
protected Object handleGetObject(String key)
```
    This implementation resolves the code in the MessageSource. Returns null if the message could not be resolved.
    Specified by:
    handleGetObject in class ResourceBundle
  - containsKey
```
public boolean containsKey(String key)
```
    This implementation checks whether the target MessageSource can resolve a message for the given key, translating NoSuchMessageException accordingly. In contrast to ResourceBundle's default implementation in JDK 1.6, this does not rely on the capability to enumerate message keys.
    Overrides:
    containsKey in class ResourceBundle
  - getKeys
```
public Enumeration<String> getKeys()
```
    This implementation throws UnsupportedOperationException, as a MessageSource does not allow for enumerating the defined message codes.
    Specified by:
    getKeys in class ResourceBundle
  - getLocale
```
public Locale getLocale()
```
    This implementation exposes the specified Locale for introspection through the standard ResourceBundle.getLocale() method.
    Overrides:
    getLocale in class ResourceBundle

Class MessageSourceResourceBundle

Nested Class Summary

Nested classes/interfaces inherited from class java.util.ResourceBundle

Field Summary

Fields inherited from class java.util.ResourceBundle

Constructor Summary

Method Summary

Methods inherited from class java.util.ResourceBundle

Methods inherited from class java.lang.Object

Constructor Detail

MessageSourceResourceBundle

MessageSourceResourceBundle

Method Detail

handleGetObject

containsKey

getKeys

getLocale