Messages (Tapestry API - 5.7.2)

All Known Implementing Classes:

AbstractMessages, MapMessages, MessagesImpl
```
public interface Messages
```
Provides access to a messages catalog, a set of properties files that provide localized messages for a particular locale. The message catalog consists of keys and values and follows the semantics of a Java with some changes.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`key)`	Returns true if the bundle contains the named key.
	`key, ... args)`	Convenience for accessing a formatter and formatting a localized message with arguments.
	`key)`	Returns the localized message for the given key.
`MessageFormatter`	`key)`	Returns a formatter for the message, which can be used to substitute arguments (as per ).
`<>`	`getKeys()`	Returns a set of all the keys for which this instance may provide a value.

- Method Detail
  - contains
```
boolean  key)
```
    Returns true if the bundle contains the named key.
  - get
```
  key)
```
    Returns the localized message for the given key. If catalog does not contain such a key, then a modified version of the key is returned (converted to upper case and enclosed in brackets).
    
    Parameters:
    
    key -
    
    Returns:
    
    localized message for key, or placeholder
  - getFormatter
```
 key)
```
    Returns a formatter for the message, which can be used to substitute arguments (as per ).
    
    Parameters:
    
    key -
    
    Returns:
    
    formattable object
  - format
```
  key,
              ... args)
```
    Convenience for accessing a formatter and formatting a localized message with arguments.
  - getKeys
```
<> getKeys()
```
    Returns a set of all the keys for which this instance may provide a value.
    
    Returns:
    
    set of keys
    
    Since:
    
    5.4