public interface Hierarchical<T>
| Modifier and Type | Method and Description | 
|---|---|
| void | addChild(T child) | 
| List<T> | getAncestors() | 
| List<T> | getChildren() | 
| T | getParent() | 
| boolean | hasChildren() | 
| boolean | isRootLevel() | 
| void | removeChild(T child) | 
| void | setChildren(List<T> children) | 
| void | setParent(T parent) | 
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