private String resolveSnippetField(IBindingSet bs){
  String snippetFieldStr=resolveAsString(snippetField,bs);
  if (snippetFieldStr == null || snippetFieldStr.isEmpty()) {
    snippetFieldStr=defaults.getDefaultSnippetField();
  }
  return snippetFieldStr == null || snippetFieldStr.isEmpty() ? FTS.Options.DEFAULT_SNIPPET_FIELD : snippetFieldStr;
}

private String resolveSnippetField ( IBindingSet bs ) { String snippetFieldStr = resolveAsString ( snippetField , bs ) ; if ( snippetFieldStr == null || snippetFieldStr . isEmpty ( ) ) { snippetFieldStr = defaults . getDefaultSnippetField ( ) ; } return snippetFieldStr == null || snippetFieldStr . isEmpty ( ) ? FTS . Options . DEFAULT_SNIPPET_FIELD : snippetFieldStr ; }
resolves the search field , which is either a constant or a variable to be looked up in the binding set .
