it.unimi.dsi.util

Class ImmutableBinaryTrie.Node

java.lang.Object

it.unimi.dsi.util.ImmutableBinaryTrie.Node

All Implemented Interfaces:

Serializable

Enclosing class:

ImmutableBinaryTrie<T>

protected static class ImmutableBinaryTrie.Node
extends Object
implements Serializable

A node in the trie.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
ImmutableBinaryTrie.Node	left
long[]	path An array containing the path compacted in this node (null if there is no compaction at this node).
int	pathLength The length of the path compacted in this node (0 if there is no compaction at this node).
ImmutableBinaryTrie.Node	right
int	word If nonnegative, this node represent the word-th word.

Constructor Summary

Constructors

Constructor and Description
ImmutableBinaryTrie.Node(BitVector path) Creates a node that does not represent a word.
ImmutableBinaryTrie.Node(BitVector path, int word) Creates a node representing a word.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	isLeaf() Returns true if this node is a leaf.
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

left

public ImmutableBinaryTrie.Node left

right

public ImmutableBinaryTrie.Node right

path

public final long[] path

An array containing the path compacted in this node (null if there is no compaction at this node).

pathLength

public final int pathLength

The length of the path compacted in this node (0 if there is no compaction at this node).

word

public final int word

If nonnegative, this node represent the word-th word.

Constructor Detail

ImmutableBinaryTrie.Node

public ImmutableBinaryTrie.Node(BitVector path,
                        int word)

Creates a node representing a word.

Note that the long array contained in path will be stored inside the node.

Parameters:

path - the path compacted in this node, or null for the empty path.

word - the index of the word represented by this node.

ImmutableBinaryTrie.Node

public ImmutableBinaryTrie.Node(BitVector path)

Creates a node that does not represent a word.

Parameters:

path - the path compacted in this node, or null for the empty path.

Method Detail

isLeaf

public boolean isLeaf()

Returns true if this node is a leaf.

Returns:

true if this node is a leaf.

toString

public String toString()

Overrides:

toString in class Object