SpanOrBuilder sot=new SpanOrBuilder(sqof);
sqof.addBuilder("SpanOr",sot);
queryFactory.addBuilder("SpanOr",sot);
SpanOrTermsBuilder sots=new SpanOrTermsBuilder(analyzer);
sqof.addBuilder("SpanOrTerms",sots);
queryFactory.addBuilder("SpanOrTerms",sots);
SpanFirstBuilder sft=new SpanFirstBuilder(sqof);
sqof.addBuilder("SpanFirst",sft);