Java 类org.hibernate.search.filter.impl.CachingWrapperFilter 实例源码

/**
 * When a @FullTextFilterDef annotation associates this factory class with a given name, and a "FullTextQuery.enableFullTextFilter()" is 
 * called with that name as its input parameter, then this method is used to return a Filter with the actual filtering logic.  It is 
 * the @Factory annotation that designates this method as having that responsibility for this factory class. 
 */
@Factory
public Filter getFilter() {
    StringTokenizer tokenzier = new StringTokenizer(deviceName.toLowerCase());
    PhraseQuery query = new PhraseQuery();
    while(tokenzier.hasMoreTokens()) {
        // By default, field values were converted to lower-case when indexed by Lucene.  So be sure to 
        // convert search terms to lower-case in order to make them match.
        Term term = new Term("supportedDevices.name", tokenzier.nextToken().toLowerCase());
        query.add(term);
    }
    Filter filter = new QueryWrapperFilter(query);
    return new CachingWrapperFilter(filter);
}

/**
 * When a @FullTextFilterDef annotation associates this factory class with a given name, and a "FullTextQuery.enableFullTextFilter()" is 
 * called with that name as its input parameter, then this method is used to return a Filter with the actual filtering logic.  It is 
 * the @Factory annotation that designates this method as having that responsibility for this factory class. 
 */
@Factory
public Filter getFilter() {
    StringTokenizer tokenzier = new StringTokenizer(deviceName.toLowerCase());
    PhraseQuery query = new PhraseQuery();
    while(tokenzier.hasMoreTokens()) {
        // By default, field values were converted to lower-case when indexed by Lucene.  So be sure to 
        // convert search terms to lower-case in order to make them match.
        Term term = new Term("supportedDevices.name", tokenzier.nextToken().toLowerCase());
        query.add(term);
    }
    Filter filter = new QueryWrapperFilter(query);
    return new CachingWrapperFilter(filter);
}

/**
 * When a @FullTextFilterDef annotation associates this factory class with a given name, and a "FullTextQuery.enableFullTextFilter()" is 
 * called with that name as its input parameter, then this method is used to return a Filter with the actual filtering logic.  It is 
 * the @Factory annotation that designates this method as having that responsibility for this factory class. 
 */
@Factory
public Filter getFilter() {
    StringTokenizer tokenzier = new StringTokenizer(deviceName.toLowerCase());
    PhraseQuery query = new PhraseQuery();
    while(tokenzier.hasMoreTokens()) {
        // By default, field values were converted to lower-case when indexed by Lucene.  So be sure to 
        // convert search terms to lower-case in order to make them match.
        Term term = new Term("supportedDevices.name", tokenzier.nextToken().toLowerCase());
        query.add(term);
    }
    Filter filter = new QueryWrapperFilter(query);
    return new CachingWrapperFilter(filter);
}

/**
 * 全文检索
 * @param page 分页对象
 * @param query 关键字查询对象
 * @param queryFilter 查询过滤对象
 * @param sort 排序对象
 * @return 分页对象
 */
@SuppressWarnings("unchecked")
public Page<T> search(Page<T> page, BooleanQuery query, BooleanQuery queryFilter, Sort sort){

    // 按关键字查询
    FullTextQuery fullTextQuery = getFullTextSession().createFullTextQuery(query, entityClass);


    // 过滤无效的内容
    if(queryFilter != null){
        fullTextQuery.setFilter(new CachingWrapperFilter(new QueryWrapperFilter(queryFilter)));
    }


       // 按时间排序
    if(sort != null){
        fullTextQuery.setSort(sort);
    }

    // 定义分页
    page.setCount(fullTextQuery.getResultSize());
    fullTextQuery.setFirstResult(page.getFirstResult());
    fullTextQuery.setMaxResults(page.getMaxResults()); 

    // 先从持久化上下文中查找对象，如果没有再从二级缓存中查找
       fullTextQuery.initializeObjectsWith(ObjectLookupMethod.SECOND_LEVEL_CACHE, DatabaseRetrievalMethod.QUERY); 

    // 返回结果
    page.setList(fullTextQuery.list());

    return page;
}

@Factory
public Filter getFilter() {
    Query query = new TermQuery( new Term("level", level.toString() ) );
    return new CachingWrapperFilter( new QueryWrapperFilter(query) );
}