com.typesafe.config

## Interface ConfigIncluder

    public interface ConfigIncluder

Implement this interface and provide an instance to `ConfigParseOptions.setIncluder()` to customize handling of `include` statements in config files. You may also want to implement `ConfigIncluderClasspath`, `ConfigIncluderFile`, and `ConfigIncluderURL`, or not.

### Method Summary

Methods
`ConfigObject` `include(ConfigIncludeContext context, java.lang.String what)` Parses another item to be included.
`ConfigIncluder` `withFallback(ConfigIncluder fallback)` Returns a new includer that falls back to the given includer.

### Method Detail

#### withFallback

    ConfigIncluder withFallback(ConfigIncluder fallback)

Returns a new includer that falls back to the given includer. This is how you can obtain the default includer; it will be provided as a fallback. It's up to your includer to chain to it if you want to. You might want to merge any files found by the fallback includer with any objects you load yourself. It's important to handle the case where you already have the fallback with a "return this", i.e. this method should not create a new object if the fallback is the same one you already have. The same fallback may be added repeatedly.

Parameters:
  `fallback` -
Returns:
  a new includer

#### include

    ConfigObject include(ConfigIncludeContext context,
                       java.lang.String what)

Parses another item to be included. The returned object typically would not have substitutions resolved. You can throw a ConfigException here to abort parsing, or return an empty object, but may not return null. This method is used for a "heuristic" include statement that does not specify file, URL, or classpath resource. If the include statement does specify, then the same class implementing `ConfigIncluder` must also implement `ConfigIncluderClasspath`, `ConfigIncluderFile`, or `ConfigIncluderURL` as needed, or a default includer will be used.

Parameters:
  `context` - some info about the include context
  `what` - the include statement's argument
Returns:
  a non-null ConfigObject