com.swabunga.spell.engine

Class SpellDictionaryDichoDisk

java.lang.Object

com.swabunga.spell.engine.SpellDictionaryASpell

com.swabunga.spell.engine.SpellDictionaryDichoDisk

All Implemented Interfaces:

SpellDictionary

Direct Known Subclasses:

SpellDictionaryCachedDichoDisk

public class SpellDictionaryDichoDisk
extends SpellDictionaryASpell

Another implementation of SpellDictionary that doesn't cache any words in memory. Avoids the huge footprint of SpellDictionaryHashMap at the cost of relatively minor latency. A future version of this class that implements some caching strategies might be a good idea in the future, if there's any demand for it. This implementation requires a special dictionary file, with "code*word" lines sorted by code. It's using a dichotomy algorithm to search for words in the dictionary

Version:

0.1

Author:

Damien Guillaume

Field Summary

Fields inherited from class com.swabunga.spell.engine.SpellDictionaryASpell

tf

Constructor Summary

Constructors

Constructor and Description
SpellDictionaryDichoDisk(java.io.File wordList) Dictionary convenience Constructor.
SpellDictionaryDichoDisk(java.io.File wordList, java.io.File phonetic) Dictionary constructor that uses an aspell phonetic file to build the transformation table.
SpellDictionaryDichoDisk(java.io.File wordList, java.io.File phonetic, java.lang.String encoding) Dictionary constructor that uses an aspell phonetic file to build the transformation table.
SpellDictionaryDichoDisk(java.io.File wordList, java.lang.String encoding) Dictionary convenience Constructor.

Method Summary

Modifier and Type	Method and Description
void	addWord(java.lang.String word) Add a word permanently to the dictionary (and the dictionary file).
java.util.List	getWords(java.lang.String code) Returns a list of strings (words) for the code.

Methods inherited from class com.swabunga.spell.engine.SpellDictionaryASpell

getCode, getSuggestions, getSuggestions, isCorrect

Methods inherited from class java.lang.Object

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

Constructor Detail

SpellDictionaryDichoDisk

public SpellDictionaryDichoDisk(java.io.File wordList)
                         throws java.io.FileNotFoundException,
                                java.io.IOException

Dictionary convenience Constructor.

Parameters:

wordList - The file containing the words list for the dictionary

Throws:

java.io.FileNotFoundException - indicates problems locating the words list file on the system

java.io.IOException - indicates problems reading the words list file

SpellDictionaryDichoDisk

public SpellDictionaryDichoDisk(java.io.File wordList,
                                java.lang.String encoding)
                         throws java.io.FileNotFoundException,
                                java.io.IOException

Dictionary convenience Constructor.

Parameters:

wordList - The file containing the words list for the dictionary

encoding - Uses the character set encoding specified

Throws:

java.io.FileNotFoundException - indicates problems locating the words list file on the system

java.io.IOException - indicates problems reading the words list file

SpellDictionaryDichoDisk

public SpellDictionaryDichoDisk(java.io.File wordList,
                                java.io.File phonetic)
                         throws java.io.FileNotFoundException,
                                java.io.IOException

Dictionary constructor that uses an aspell phonetic file to build the transformation table.

Parameters:

wordList - The file containing the words list for the dictionary

phonetic - The file to use for phonetic transformation of the wordlist.

Throws:

java.io.FileNotFoundException - indicates problems locating the file on the system

java.io.IOException - indicates problems reading the words list file

SpellDictionaryDichoDisk

public SpellDictionaryDichoDisk(java.io.File wordList,
                                java.io.File phonetic,
                                java.lang.String encoding)
                         throws java.io.FileNotFoundException,
                                java.io.IOException

Dictionary constructor that uses an aspell phonetic file to build the transformation table.

Parameters:

wordList - The file containing the words list for the dictionary

phonetic - The file to use for phonetic transformation of the wordlist.

encoding - Uses the character set encoding specified

Throws:

java.io.FileNotFoundException - indicates problems locating the file on the system

java.io.IOException - indicates problems reading the words list file

Method Detail

addWord

public void addWord(java.lang.String word)

Add a word permanently to the dictionary (and the dictionary file). not implemented !

Parameters:

word - The word to add.

getWords

public java.util.List getWords(java.lang.String code)

Returns a list of strings (words) for the code.

Specified by:

getWords in class SpellDictionaryASpell

Parameters:

code - The phonetic code common to the list of words

Returns:

A list of words having the same phonetic code