IErrorMessageSource (Wicket Parent 9.19.0-SNAPSHOT API)

```
public interface IErrorMessageSource
```
Interface representing a message source that stores messages by key and can perform variable substitution.

Since:

1.2.6

Author:

Igor Vaynberg (ivaynberg)

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`String`	`getMessage(String key, Map<String,Object> vars)`	Retrieves a message with the given `key`.

- Method Detail
  - getMessage
```
String getMessage(String key,
                  Map<String,Object> vars)
```
    Retrieves a message with the given key.
    
    Parameters:
    
    key - a message key
    
    vars - variables to substitute
    
    Returns:
    
    message or null if not found