SpanOrTermsBuilder sots=new SpanOrTermsBuilder(analyzer);
sqof.addBuilder("SpanOrTerms",sots);
queryFactory.addBuilder("SpanOrTerms",sots);
SpanFirstBuilder sft=new SpanFirstBuilder(sqof);
sqof.addBuilder("SpanFirst",sft);
queryFactory.addBuilder("SpanFirst",sft);
SpanNotBuilder snot=new SpanNotBuilder(sqof);
sqof.addBuilder("SpanNot",snot);