zyfan created LUCENE-4626:
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Summary: lucene totalGroupCount always 0
Key: LUCENE-4626
URL: https://issues.apache.org/jira/browse/LUCENE-4626
Project: Lucene - Core
Issue Type: Bug
Components: modules/grouping
Affects Versions: 4.0
Environment: win7 + JDK6.0
Reporter: zyfan
i want group in lucene ,i find group demo for lucene 4.0 API,
this is my code:
Analyzer analyzer=new WhitespaceAnalyzer(Version.LUCENE_40);
DirectoryReader indexReader=DirectoryReader.open(FSDirectory.open(new
File(indexDir)));
IndexSearcher isearcher = new IndexSearcher(indexReader);
GroupingSearch groupingSearch = new GroupingSearch("CsCode");
groupingSearch.setGroupSort(Sort.INDEXORDER);
groupingSearch.setFillSortFields(true);
if (true) {
// Sets cache in MB
groupingSearch.setCachingInMB(100.0, true);
}
if (true) {
groupingSearch.setAllGroups(true);
}
QueryParser parser = new QueryParser(Version.LUCENE_40, "OneBestText1",
analyzer);
Query query = parser.parse("你好");
TopGroups<String> result = groupingSearch.search(isearcher, query, 0, 5000);
// Render groupsResult...
if (true) {
int totalGroupCount = result.totalGroupCount;
System.out.println(totalGroupCount);
}
the totalGroupCount always 0 but result.groups.length is 590.
i donot know why ,please help
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