Our books:

error

Parse Failure [Failed to parse source [_na_]]
	at org.elasticsearch.search.SearchService.parseSource(SearchService.java:416)
	at org.elasticsearch.search.SearchService.createContext(SearchService.java:331)
	at org.elasticsearch.search.SearchService.executeQueryPhase(SearchService.java:165)
	at org.elasticsearch.search.action.SearchServiceTransportAction.sendExecuteQuery(SearchServiceTransportAction.java:132)
	at org.elasticsearch.action.search.type.TransportSearchQueryThenFetchAction$AsyncAction.sendExecuteFirstPhase(TransportSearchQueryThenFetchAction.java:76)
	at org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction.performFirstPhase(TransportSearchTypeAction.java:191)
	at org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction.access$000(TransportSearchTypeAction.java:75)
	at org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction$2.run(TransportSearchTypeAction.java:168)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:680)
Caused by: java.util.regex.PatternSyntaxException: Dangling meta character '*' near index 0
*_0_*

gistfile3.js

$ curl -XPUT 'http://localhost:9200/books/book -d '{
  "name" : "a"  
  "linie" : ["_0_Religion", "_1_Religion_Jews", "_0_Historic", "_1_Historic_Old"]
  "no_delivery": "pakistan"
}'

$ curl -XPUT 'http://localhost:9200/books/book -d '{
  "name" : "b"  
  "linie" : ["_0_Religion", "_1_Religion_Jews", "_0_Historic", "_1_Historic_Old"]
  "no_delivery": null
}'

$ curl -XPUT 'http://localhost:9200/books/book -d '{
  "name" : "c"  
  "linie" : ["_0_Religion", "_1_Religion_Christian", "_0_Historic", "_1_Historic_New"]
  "no_delivery": "pakistan"
}'

gistfile4.java

SearchRequestBuilder builder = client.prepareSearch("books");
        XContentQueryBuilder qb = QueryBuilders.queryString("*")
                .defaultOperator(QueryStringQueryBuilder.Operator.OR)
                .field("name")
                .field("linie")
                .field("no_delivery")
                .allowLeadingWildcard(true).useDisMax(true);

builder.setQuery(qb);
builder.addFacet(
FacetBuilders.termsFacet("linie").field("linie").regex("_0_*")
);

Java query for level 0

SearchRequestBuilder builder = client.prepareSearch("books");
        XContentQueryBuilder qb = QueryBuilders.queryString("*")
                .defaultOperator(QueryStringQueryBuilder.Operator.OR)
                .field("name")
                .field("linie")
                .field("no_delivery")
                .allowLeadingWildcard(true).useDisMax(true);

builder.setQuery(qb);
builder.addFacet(
FacetBuilders.termsFacet("linie").field("linie").facetFilter(new TermsFilterBuilder("linie", "_0_*")
);