Interface ConfigResolver


  • public interface ConfigResolver
    Implement this interface and provide an instance to ConfigResolveOptions.appendResolver() to provide custom behavior when unresolved substitutions are encountered during resolution.
    Since:
    1.3.2
    • Method Detail

      • lookup

        ConfigValue lookup​(java.lang.String path)
        Returns the value to substitute for the given unresolved path. To get the components of the path use ConfigUtil.splitPath(String). If a non-null value is returned that value will be substituted, otherwise resolution will continue to consider the substitution as still unresolved.
        Parameters:
        path - the unresolved path
        Returns:
        the value to use as a substitution or null
      • withFallback

        ConfigResolver withFallback​(ConfigResolver fallback)
        Returns a new resolver that falls back to the given resolver if this one doesn't provide a substitution itself. 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 - the previous includer for chaining
        Returns:
        a new resolver