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| java.lang.Object
 bdd.search.spider.WordExtractor
All known Subclasses: bdd.search.spider.TextWordExtractor, bdd.search.spider.HTMLWordExtractor,
| WordExtractor | | public class WordExtractor (Code) | | Written by Tim Macinta 1997
Distributed under the GNU Public License
(a copy of which is enclosed with the source).
A WordExtractor should be able to extract the words from
a given file. This class should be subclassed by classes which
understand different document types.
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| Method Summary | |
| public void | addWord(String word)
Used internally to add a word to the list of words as they are found
in the document. | | public int | countOccurances(String word)
Returns a count of the number of times that "word" appears in the
the document. | | public int | countWords()
Returns the number of words in this document. | | public int | firstOccurance(String word)
Returns the index of "word". | | public Enumeration | getWords()
Returns an Enumeration that returns each word in the document in
no particular order. |
| current_index | | int current_index(Code) | | |
| WordExtractor | | public WordExtractor()(Code) | | |
| addWord | | public void addWord(String word)(Code) | | Used internally to add a word to the list of words as they are found
in the document.
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| countOccurances | | public int countOccurances(String word)(Code) | | Returns a count of the number of times that "word" appears in the
the document.
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| countWords | | public int countWords()(Code) | | Returns the number of words in this document.
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| firstOccurance | | public int firstOccurance(String word)(Code) | | Returns the index of "word". The index is determined by counting
the words in the document until the first occurance of "word" is
found. For instance, firstOccurance("the") would return 5 if the
document started like this "Once upon a time the giant tomato of...".
Returns -1 if the word is not in the document.
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| getWords | | public Enumeration getWords()(Code) | | Returns an Enumeration that returns each word in the document in
no particular order. A word is returned once at most regardless of
the number of times it appears in the document. The Enumeration
returns a String for each call to nextElement().
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