com.tangosol.util

Class AbstractSparseArray.Node<V>

java.lang.Object

com.tangosol.util.AbstractSparseArray.Node<V>

All Implemented Interfaces:

Serializable, Cloneable

Direct Known Subclasses:

PrimitiveSparseArray.PrimitiveNode, SparseArray.ObjectNode

Enclosing class:

AbstractSparseArray<V>

protected abstract static class AbstractSparseArray.Node<V>
extends Object
implements Cloneable, Serializable

An AVL tree node. This class is used only within the AbstractSparseArray class and its derivations.

Field Summary

Fields

Modifier and Type	Field	Description
protected int	balance	The AVL balance factor of the sub-tree.
protected long	key	The key of the node.
protected AbstractSparseArray.Node<V>	left	The left child of this node.
protected AbstractSparseArray.Node<V>	parent	The parent of this node.
protected AbstractSparseArray.Node<V>	right	The right child of this node.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	Node()

Method Summary

Modifier and Type	Method	Description
protected void	adopt(AbstractSparseArray.Node<V> child, boolean fLeft)	Adopt a child node
AbstractSparseArray.Node<V>	clone()	Make a shallow copy of the node and its sub-nodes.
abstract V	getValue()	Get the value associated with the node.
protected boolean	isLeaf()	Determine if this node is a part of a 2-3-4 leaf node (i.e. at least one null child).
protected boolean	isLinked()	Return true iff the node is linked to other nodes.
protected void	print()	Print the tree structure.
abstract V	setValue(V oValue)	Set the value associated with the node.
String	toString()	Provide a string representation of this node's value.
protected int	validate()	Validate the tree rooted at node is a proper AVL tree.

Methods inherited from class java.lang.Object

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

Field Detail

key

protected long key

The key of the node. The key, once set, is considered immutable.

parent

protected AbstractSparseArray.Node<V> parent

The parent of this node.

left

protected AbstractSparseArray.Node<V> left

The left child of this node.

right

protected AbstractSparseArray.Node<V> right

The right child of this node.

balance

protected int balance

The AVL balance factor of the sub-tree.

Constructor Detail

Node

protected Node()

Method Detail

adopt

protected void adopt(AbstractSparseArray.Node<V> child,
                     boolean fLeft)

Adopt a child node

Parameters:

child - the child to adopt

fLeft - the position of the child

getValue

public abstract V getValue()

Get the value associated with the node.

Returns:

the value associated with the node.

setValue

public abstract V setValue(V oValue)

Set the value associated with the node.

Parameters:

oValue - the value associated with the node

Returns:

the old value associated with the node

toString

public String toString()

Provide a string representation of this node's value.

Overrides:

toString in class Object

clone

public AbstractSparseArray.Node<V> clone()

Make a shallow copy of the node and its sub-nodes.

Overrides:

clone in class Object

isLeaf

protected boolean isLeaf()

Determine if this node is a part of a 2-3-4 leaf node (i.e. at least one null child).

Returns:

true if this node is a leaf

isLinked

protected boolean isLinked()

Return true iff the node is linked to other nodes.

Returns:

true iff the node has a parent or children

print

protected void print()

Print the tree structure.

validate

protected int validate()

Validate the tree rooted at node is a proper AVL tree.

Returns:

the height of the node within the tree