[jboss-user] [JBoss Seam] - Re: Help!!! Seam with Hibernate Search problem

[ljp19820721]

Here is the source code.

/**
 *
 * @author lv.jianping
 */
@Stateful
@Name(value = "search")
public class SearchBean implements SearchLocal, Serializable {

    @PersistenceContext
    private EntityManager em;
    int pageSize = 15;
    int currentPage = 0;
    boolean hasMore = false;
    int resultsNumber = 0;
    String searchQuery;
    @DataModel
    List searchResults;
    @DataModelSelection
    @Out(required = false)
    Content selectedContent;

    public Content getSelectedContent() {
        return selectedContent;
    }

    public void getSearchResults() {
        doSearch();
    }


    public String getSearchQuery() {
        return searchQuery;
    }

    public void setSearchQuery(String searchQuery) {
        this.searchQuery = searchQuery;
    }

    public int getResultsNumber() {
        return resultsNumber;
    }

    public String doSearch() {
        currentPage = 0;
        updateResults();
        return "searchResults";
    }

    public void doIndex() {
        FullTextEntityManager ftEm = Search.createFullTextEntityManager(em);
        List contents = em.createQuery("select c from Content c where c.isdeleted='0' and c.contentstate='1' ").getResultList();
        
        for (Object object : contents){
            ftEm.index((Content)object);
        }
    }

    public void nextPage() {
        if (!isLastPage()) {
            currentPage++;
            updateResults();
        }
    }

    public void prePage() {
        if (!isFirstPage()) {
            currentPage--;
            updateResults();
        }
    }

    public boolean isLastPage() {
        return (searchResults != null) && !hasMore;
    }

    public boolean isFirstPage() {
        return (searchResults != null) && (currentPage == 0);
    }

    public int getPageSize() {
        return pageSize;
    }

    public void setPageSize(int pageSize) {
        this.pageSize = 10;
    }

    private javax.persistence.Query searchQuery(String searchQuery) throws ParseException {
        Map<String, Float> boostPerField = new HashMap<String, Float>();
        boostPerField.put("contenttitle", 4f);
        boostPerField.put("contentbody", 2f);
        boostPerField.put("contentbodysms", 2f);
        String[] contentFields = {"contenttitle", "contentbody", "contentbodysms"};
        QueryParser parser = new MultiFieldQueryParser(contentFields, new StandardAnalyzer(), boostPerField);
        parser.setAllowLeadingWildcard(true);
        org.apache.lucene.search.Query luceneQuery = parser.parse(searchQuery);
        FullTextEntityManager ftEm = Search.createFullTextEntityManager(em);

//********Here Exception is throwed out*************//
        javax.persistence.Query query = ftEm.createFullTextQuery(luceneQuery, Content.class);
        return query;
        
    }

    private void updateResults() {
        Query query;
        try {
            query = searchQuery(searchQuery);
        } catch (ParseException pe) {
            return;
        }

        @SuppressWarnings(value = "unchecked")
        List items = query.setMaxResults(pageSize + 1).setFirstResult(pageSize * currentPage).getResultList();
        resultsNumber = items.size();

        if (items.size() > pageSize) {
            searchResults = new ArrayList(items.subList(0, pageSize));
            hasMore = true;
        } else {
            searchResults = items;
            hasMore = false;
        }
    }

    
    @Destroy
    @Remove
    public void destroy() {
    }
}

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