com.atilika.kuromoji.trie

Class DoubleArrayTrie

java.lang.Object

com.atilika.kuromoji.trie.DoubleArrayTrie

public class DoubleArrayTrie
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	DOUBLE_ARRAY_TRIE_FILENAME
static char	TERMINATING_CHARACTER

Constructor Summary

Constructors

Constructor and Description
DoubleArrayTrie()
DoubleArrayTrie(boolean compactTries)

Method Summary

Modifier and Type	Method and Description
void	build(Trie trie) Construct double array trie which is equivalent to input trie
java.nio.IntBuffer	getBaseBuffer()
java.nio.IntBuffer	getCheckBuffer()
java.nio.CharBuffer	getTailBuffer()
int	lookup(java.lang.String key) Match input keyword.
int	lookup(java.lang.String key, int index, int j)
static DoubleArrayTrie	newInstance(ResourceResolver resolver)
static DoubleArrayTrie	read(java.io.InputStream input) Load Stored data
void	write(java.io.OutputStream output)

Methods inherited from class java.lang.Object

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

Field Detail

DOUBLE_ARRAY_TRIE_FILENAME

public static final java.lang.String DOUBLE_ARRAY_TRIE_FILENAME

TERMINATING_CHARACTER

public static final char TERMINATING_CHARACTER

See Also:

Constant Field Values

Constructor Detail

DoubleArrayTrie

public DoubleArrayTrie()

DoubleArrayTrie

public DoubleArrayTrie(boolean compactTries)

Method Detail

write

public void write(java.io.OutputStream output)
           throws java.io.IOException

Throws:

java.io.IOException

newInstance

public static DoubleArrayTrie newInstance(ResourceResolver resolver)
                                   throws java.io.IOException

Throws:

java.io.IOException

read

public static DoubleArrayTrie read(java.io.InputStream input)
                            throws java.io.IOException

Load Stored data

Parameters:

input - input stream to read the double array trie from

Returns:

double array trie, not null

Throws:

java.io.IOException - if an IO error occured during reading the double array trie

build

public void build(Trie trie)

Construct double array trie which is equivalent to input trie

Parameters:

trie - normal trie, which contains all dictionary words

lookup

public int lookup(java.lang.String key)

Match input keyword.

Parameters:

key - key to match

Returns:

index value of last character in baseBuffer(double array id) if it is complete match. Negative value if it doesn't match. 0 if it is prefix match.

lookup

public int lookup(java.lang.String key,
                  int index,
                  int j)

getBaseBuffer

public java.nio.IntBuffer getBaseBuffer()

getCheckBuffer

public java.nio.IntBuffer getCheckBuffer()

getTailBuffer

public java.nio.CharBuffer getTailBuffer()