question: @ Override public void reset ( ) { _clear ( ) ; bnodes = null ; bnodesTotalCount = 0 ; bnodesResolvedCount = 0 ; deferredStmts = null ; reifiedStmts = null ; if ( queue != null ) { final Future < Void > ft = this . ft ; if ( ft != null ) { ft . cancel ( true ) ; this . ft = null ; } queue . clear ( ) ; } }
target:  Clears all buffered data, including the canonicalizing mapping for blank nodes and deferred provenance statements.