Erik, thanks.
U r right. Once excuting the search action, I will check whether this
IndexReader still works on a current version of the index by
IndexSearcher#isCurrent(). If not I will open a new IndexSearcher.
And now it works well.
But I want to know that if index update action offen happens, the
IndexSearcher also need create many times, what influence well be caused
on my blog system. Have u know something about it.
Best regards.
>After indexing, you have to open a new IndexSearcher to in order to see new
> documents.
>
> Erik
>
>
>On Apr 9, 2007, at 5:25 AM, anson wrote:
>
>>
>> I have build a blog project under tomcat5.5 with Lucene2.0.
>> And I want to search my blog by full text, but there is somthing wrong:
>>
>> ----------------------------------------------
>> The project flow:
>>
>> (1) On tomcat start I wrote a listener to create a index file if the
>> index is never created.(It's works well)
>>
>>
>> (2) When I create/update/delete an article on the blog, I wrote a method
>> to update the index.(It's also works well)
>>
>> (3) Then I want to search the new/updated article in the front of my
>> blog page. But I can't get the new article. But when I restart the
>> tomcat, I can get the new one that I want. Why.
>>
>>
>> -----------------------------------------------
>> The index update flow:
>>
>> (1) Firsrt I delete the old document in index:
>>
>> IndexReader reader =
>> IndexReader.open($INDEX_DIRECTORY);
>>
>> Term term = new Term("INDEX_ID", $entryId);
>>
>> if (term != null) {
>> reader.deleteDocuments(term);
>> }
>>
>> //finally:
>> reader.close();
>>
>>
>> (2) Add the article to the index:
>> // Get the singleton IndexWriter instance
>> IndexWriter writer =
>> IndexManager.getInstance().getIndexWriter();
>>
>> // add document
>> // Document() is method of make Lucene document
>> writer.addDocument(Document($EntryBean));
>>
>> writer.optimize();
>>
>>
>> // finally:
>> writer.close();
>>
>>
>> Could anybody tell me anything can help me out. Or I made a wrong flow?
>>
>>
>> Best regards.
>>
>>
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