MpConfigFilter (Helidon Project 2.6.9 API)

All Known Implementing Classes:

MpEncryptionFilter
```
public interface MpConfigFilter
```
Filtering support for MicroProfile config implementation. The current specification does not have a way to intercept values as they are delivered. As we want to support filtering capabilities (such as for configuration encryption), this is a temporary solution (or permanent if the MP spec does not add any similar feature).

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`String`	`apply(String propertyName, String value)`	Apply this filter on the provided value.
`default void`	`init(Config config)`	Initialize this filter from configuration.

- Method Detail
  - init
```
default void init(Config config)
```
    Initialize this filter from configuration. The config instance provided only has filters with higher priority than this filter.
    
    Parameters:
    
    config - configuration to set this filter up.
  - apply
```
String apply(String propertyName,
             String value)
```
    Apply this filter on the provided value.
    
    Parameters:
    
    propertyName - name of the property (its key)
    
    value - the current value of the property as retrieved from the config source, or from previous filters
    
    Returns:
    
    value as processed by this filter