NodeConfigSource (Helidon Project 2.6.9 API)

All Superinterfaces:

ConfigSource, Source, Supplier<ConfigSource>

All Known Implementing Classes:

ConfigSources.SystemPropertiesConfigSource, DirectoryConfigSource, MapConfigSource, PrefixedConfigSource
```
public interface NodeConfigSource
extends ConfigSource
```
An eager source that can read all data from the underlying origin as a configuration node.

- Nested Class Summary
  - Nested classes/interfaces inherited from interface io.helidon.config.spi.Source
    Source.Builder<B extends Source.Builder<B>>
- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  Optional<ConfigContent.NodeContent> load()
  Loads the underlying source data.
  - Methods inherited from interface io.helidon.config.spi.ConfigSource
    get, init
  - Methods inherited from interface io.helidon.config.spi.Source
    description, exists, optional, retryPolicy

- Method Detail
  - load
```
Optional<ConfigContent.NodeContent> load()
                                  throws ConfigException
```
    Loads the underlying source data. This method is only called when the source Source.exists().
    The method can be invoked repeatedly, for example during retries.
    
    Returns:
    
    An instance of T as read from the underlying origin of the data (if it exists)
    
    Throws:
    
    ConfigException - in case of errors loading from the underlying origin