org.apache.calcite.util

Class PartiallyOrderedSet.Node<E>

java.lang.Object

org.apache.calcite.util.PartiallyOrderedSet.Node<E>

Type Parameters:

E - Element type

Direct Known Subclasses:

PartiallyOrderedSet.TopBottomNode

Enclosing class:

PartiallyOrderedSet<E>

private static class PartiallyOrderedSet.Node<E>
extends Object

Holds a value, its parent nodes, and child nodes.

We deliberately do not override Object.hashCode() or Object.equals(Object). A canonizing map ensures that within a given PartiallyOrderedSet, two nodes are identical if and only if they contain the same value.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) List<PartiallyOrderedSet.Node<E>>	childList
(package private) E	e
(package private) List<PartiallyOrderedSet.Node<E>>	parentList

Constructor Summary

Constructors

Constructor and Description
Node(E e)

Method Summary

Modifier and Type	Method and Description
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

parentList

final List<PartiallyOrderedSet.Node<E>> parentList

childList

final List<PartiallyOrderedSet.Node<E>> childList

e

final E e

Constructor Detail

Node

Node(E e)

Method Detail

toString

public String toString()

Overrides:

toString in class Object