returns the total number of documents that have at least one term for this field . concode_field_sep String field concode_elem_sep long maxDoc concode_elem_sep long docCount concode_elem_sep long sumTotalTermFreq concode_elem_sep long sumDocFreq concode_field_sep String field concode_elem_sep long maxDoc concode_elem_sep long sumTotalTermFreq concode_elem_sep long sumDocFreq
long function ( ) { return docCount ; }