Package com.j3d.engine.scene.nodes.geometry.base

Interface HasParents<T>

Type Parameters:
T - The type of the parent objects.
All Known Implementing Classes:
GLine, GPoint
public interface HasParents<T>
An interface for objects that can be part of a composite structure, allowing them to maintain references to their parent or owner objects.

This is particularly useful in a scene graph or a composite geometry system where child objects (e.g., a GPoint) need to notify their parent objects (e.g., a GLine or GTri) of changes. By implementing this interface, an object can track multiple parents that depend on its state.

Author:
Lehlogonolo Poole

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    addParent(T parent)
    Adds a parent to this object's set of parents.
    default void
    addParents(T... parents)
    A convenience method to add multiple parent objects at once.
    default void
    clearParents()
     
    HashSet<T>
    getParents()
    Retrieves the set of all parent objects that this object belongs to.
    default boolean
    hasParent()
    Checks if this object has at least one parent.
    void
    removeParent(T parent)
    Removes a parent from this object's set of parents.

  • Method Details

    • getParents

      HashSet<T> getParents()
      Retrieves the set of all parent objects that this object belongs to.
      Returns:
      A HashSet containing all parent objects. Using a Set ensures that a parent can only be added once.

    • addParent

      void addParent(T parent)
      Adds a parent to this object's set of parents.
      Parameters:
      parent - The parent object to add.

    • removeParent

      void removeParent(T parent)
      Removes a parent from this object's set of parents.
      Parameters:
      parent - The parent object to remove.

    • addParents

      default void addParents(T... parents)
      A convenience method to add multiple parent objects at once.
      Parameters:
      parents - A varargs array of parent objects to add.

    • hasParent

      default boolean hasParent()
      Checks if this object has at least one parent.
      Returns:
      true if the set of parents is not empty, false otherwise.

    • clearParents

      default void clearParents()