uk.ac.open.crc.mdsc.engine

Class GenericSpellingDictionary

java.lang.Object

uk.ac.open.crc.mdsc.engine.ASpellSpellingDictionary

uk.ac.open.crc.mdsc.engine.GenericSpellingDictionary

All Implemented Interfaces:

SpellingDictionary

public class GenericSpellingDictionary
extends ASpellSpellingDictionary

The SpellDictionary class holds the instance of the dictionary.

This class is thread safe. Derived classes should ensure that this preserved.

There are many open source dictionary files. For just a few see: http://wordlist.sourceforge.net/

This dictionary class reads words one per line. Make sure that your word list is formatted in this way (most are).

Field Summary

Fields

Modifier and Type	Field and Description
protected java.util.HashMap<java.lang.String,java.util.LinkedList<java.lang.String>>	mainDictionary The hashmap that contains the word dictionary.

Fields inherited from class uk.ac.open.crc.mdsc.engine.ASpellSpellingDictionary

transformator

Constructor Summary

Constructors

Constructor and Description
GenericSpellingDictionary(java.io.File wordList) Dictionary constructor that uses the DoubleMetaphone class with the English alphabet.
GenericSpellingDictionary(java.io.File wordList, java.io.File phonetic) Dictionary constructor that uses an aspell phonetic file to build the transformation table.

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).
protected void	createDictionary(java.io.BufferedReader in) Constructs the dictionary from a word list file.
java.util.List<java.lang.String>	getWords(java.lang.String code) Returns a list of strings (words) for the code.
protected void	putWord(java.lang.String word) Stores a word in the dictionary.

Methods inherited from class uk.ac.open.crc.mdsc.engine.ASpellSpellingDictionary

getPhoneticCode, getSuggestions, getSuggestions, isCorrect

Methods inherited from class java.lang.Object

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

Field Detail

mainDictionary

protected java.util.HashMap<java.lang.String,java.util.LinkedList<java.lang.String>> mainDictionary

The hashmap that contains the word dictionary. The map is hashed on the doublemetaphone code. The map entry contains a LinkedList of words that have the same double metaphone code.

Constructor Detail

GenericSpellingDictionary

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

Dictionary constructor that uses the DoubleMetaphone class with the English alphabet.

Parameters:

wordList - The file containing dictionary as a words list.

Throws:

java.io.FileNotFoundException - when the words list file could not be located on the system.

java.io.IOException - when problems occurs while reading the words list file

GenericSpellingDictionary

public GenericSpellingDictionary(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. If phonetic is null, then DoubleMeta is used with the English alphabet

Parameters:

wordList - The file containing dictionary as a words list.

phonetic - The file containing the phonetic transformation information.

Throws:

java.io.FileNotFoundException - when the words list or phonetic file could not be located on the system

java.io.IOException - when problems occurs while reading the words list or phonetic file

Method Detail

addWord

public void addWord(java.lang.String word)

Add a word permanently to the dictionary (and the dictionary file).

This needs to be made thread safe (synchronized)

Parameters:

word - The word to add to the dictionary

createDictionary

protected final void createDictionary(java.io.BufferedReader in)
                               throws java.io.IOException

Constructs the dictionary from a word list file.

Each word in the reader should be on a separate line.

Parameters:

in - a buffered reader pointing to the word list file

Throws:

java.io.IOException - if a problem is encountered reading the file

putWord

protected void putWord(java.lang.String word)

Stores a word in the dictionary.

Parameters:

word - a word to be stored in the dictionary

getWords

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

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

Specified by:

getWords in class ASpellSpellingDictionary

Parameters:

code - The phonetic code we want to find words for

Returns:

the list of words having the same phonetic code