Package com.helger.commons.hierarchy

Interface IParentProvider<PARENTTYPE>

Type Parameters:
PARENTTYPE - The type of object to get a parent from
Functional Interface:
This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@FunctionalInterface public interface IParentProvider<PARENTTYPE>
This helper interface is required to build a generic tree. This is required because the used interfaces do not provide a base interface implementing a getParent method.
Author:
Philip Helger

  • Method Details

    • getParent

      @Nullable PARENTTYPE getParent(PARENTTYPE aCurrent)
      Get the parent of the passed object.
      Parameters:
      aCurrent - The object to determine the parent of. No null or non- null constraint possible.
      Returns:
      The parent object, or null if the object has no parent.

    • parentProviderHasParent

      @Nullable static <PARENTTYPE extends IHasParent<PARENTTYPE>> IParentProvider<PARENTTYPE> parentProviderHasParent()