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From "DZISIAK Jean-Paul" <jp.dzis...@skynet.be>
Subject RE : How to implement AJAX search~Lucene Search part?
Date Fri, 08 Jun 2007 17:07:44 GMT
Hello,

I have implemented with success a keyword-based search feature with MyFaces
/ Tomahawk. Tomahawk has an Ajax-based component:

JSF page:

<t:div styleClass="menuLevelFloatDiv">
        <t:panelGrid columns="3">
            <s:inputSuggestAjax styleClass="menuLevelItem" charset="utf-8"
                                autoComplete="false"
 
suggestedItemsMethod="#{searchKeywordBean.getSuggestedKeywords}"
                                style="width=130px;"
                                maxSuggestedItems="10"
value="#{searchKeywordBean.userKeyword}"/>
            <t:commandButton styleClass="menuLevelItem"
value="#{msg.searchButton}"
                             onclick="dojoWaitDialogKeyWord.show()"
                             action="#{searchKeywordBean.lookup}"/>
            <t:commandButton styleClass="menuLevelItem"
value="#{msg.queryButton}" action="query"/>
        </t:panelGrid>
</t:div>

<%-- wait dialog box --%>
<s:modalDialog dialogId="dojoWaitDialogIDKeyWord"
dialogVar="dojoWaitDialogKeyWord"
               dialogAttr="bgColor='white' bgOpacity='0.5' toggle='fade'
toggleDuration='250'"
               styleClass="dojoWaitDialog" hiderIds="okID">
    <h:graphicImage styleClass="waitImage" value="images/wait.gif"/>
</s:modalDialog>

Backing Bean:

  /**
     * Suggested keywords for Ajax listbox
     */
    public List<String> getSuggestedKeywords(String userPrefix, Integer
maxSize) {
        List<String> foundKeywords = new ArrayList<String>();
        String userPrefixUC = userPrefix.toUpperCase();
..............................................
..............................................

And I do call a Lucene index here.


Best,


-----Message d'origine-----
De : Erick Erickson [mailto:erickerickson@gmail.com] 
Envoyé : vendredi 8 juin 2007 16:10
À : java-user@lucene.apache.org
Objet : Re: How to implement AJAX search~Lucene Search part?

You can get the information pretty quickly by using a
WildcardTermEnum (NOT query). Especially if you
terminate after some number of characters....

Erick

On 6/7/07, Chris Lu <chris.lu@gmail.com> wrote:
>
> Hi,
>
> I would like to implement an AJAX search. Basically when user types in
> several characters,  I will try to search the Lucene index and found
> all possible matching items.
>
> Seems I need to use wildcard query like "test*" to matching anything.
> Is this the only way to do it? It doesn't seems quite efficient,
> especially when you just typed in the first character.
>
> I guess the "good" way is to go through the terms, and return as soon
> as, for example, 10 terms are found.
>
> I am wondering is there anything like this already built?
>
> --
> Chris Lu
> -------------------------
> Instant Scalable Full-Text Search On Any Database/Application
> site: http://www.dbsight.net
> demo: http://search.dbsight.com
> Lucene Database Search in 3 minutes:
>
>
http://wiki.dbsight.com/index.php?title=Create_Lucene_Database_Search_in_3_m
inutes
>
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