(HibernateSearch) MultiFieldQueryParser 每个字段不同的分析器

发布于 2024-10-11 17:52:17 字数 129 浏览 2 评论 0原文

我的一些索引字段使用希腊语分析器，我想对其他一些字段使用英语分析器。我的问题是：搜索结果时（当前使用 MultiFieldQueryParser），如何为每个字段使用不同的分析器，以便希腊语分析器用于希腊语索引字段，英语分析器用于英语索引字段？

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嗫嚅 2024-10-18 17:52:17

这是我找到的解决方案。请评论。

transaction.begin();

PerFieldAnalyzerWrapper wrapper = new PerFieldAnalyzerWrapper(new StandardAnalyzer(Version.LUCENE_30));

wrapper.addAnalyzer("greekTitle", new GreekAnalyzer(Version.LUCENE_30));
wrapper.addAnalyzer("greekDescription", new GreekAnalyzer(Version.LUCENE_30));

String[] fields = {"greekTitle", "greekDescription", "englishTitle", "englishDescription"};

QueryParser queryParser = new MultiFieldQueryParser(Version.LUCENE_30, fields, wrapper);
queryParser.setDefaultOperator(QueryParser.AND_OPERATOR);
org.apache.lucene.search.Query query = queryParser.parse(QueryParser.escape(queryString));

javax.persistence.Query persistenceQuery = 
fullTextEntityManager.createFullTextQuery(query, Item.class);

@SuppressWarnings("unchecked")
List<Item> result = persistenceQuery.getResultList();

transaction.commit();

return result;

Here is the solution I found. Please comment.

transaction.begin();

PerFieldAnalyzerWrapper wrapper = new PerFieldAnalyzerWrapper(new StandardAnalyzer(Version.LUCENE_30));

wrapper.addAnalyzer("greekTitle", new GreekAnalyzer(Version.LUCENE_30));
wrapper.addAnalyzer("greekDescription", new GreekAnalyzer(Version.LUCENE_30));

String[] fields = {"greekTitle", "greekDescription", "englishTitle", "englishDescription"};

QueryParser queryParser = new MultiFieldQueryParser(Version.LUCENE_30, fields, wrapper);
queryParser.setDefaultOperator(QueryParser.AND_OPERATOR);
org.apache.lucene.search.Query query = queryParser.parse(QueryParser.escape(queryString));

javax.persistence.Query persistenceQuery = 
fullTextEntityManager.createFullTextQuery(query, Item.class);

@SuppressWarnings("unchecked")
List<Item> result = persistenceQuery.getResultList();

transaction.commit();

return result;

回复收藏 0 原文

羁绊已千年 2024-10-18 17:52:17

您可以像这样构建查询解析器：

Analyzer analyzer = fullTextSession.getSearchFactory().getAnalyzer(Item.class);
QueryParser parser = new MultiFieldQueryParser(Version.LUCENE_31, fields, analyzer);

它将使用正确的分析器，如 Item 类的注释中所定义：

@Field(name = "greekTitle" analyzer = @Analyzer(impl = GreekAnalyzer.class))
public void getGreekTitle(){
 //...
}

@Field(name = "englishTitle" analyzer = @Analyzer(impl = StandardAnalyzer.class))
public void getEnglishTitle(){
 //...
}

You could build your query parser like this:

Analyzer analyzer = fullTextSession.getSearchFactory().getAnalyzer(Item.class);
QueryParser parser = new MultiFieldQueryParser(Version.LUCENE_31, fields, analyzer);

which would use the proper analyzer, as defined in the annotations of your Item class:

@Field(name = "greekTitle" analyzer = @Analyzer(impl = GreekAnalyzer.class))
public void getGreekTitle(){
 //...
}

@Field(name = "englishTitle" analyzer = @Analyzer(impl = StandardAnalyzer.class))
public void getEnglishTitle(){
 //...
}

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