question: private boolean advanceApiUpTo ( TreeSet < AreaPanelInfo > sortedApiTree , AreaPanelInfo api , int time ) { AreaPanel ap = api . ap ( ) ; TimeTree rootTt = ap . getTimeTree ( ) ; TimeTree tt = rootTt . getEncompassigTimeTreeOrMaxTimeTreeBeforeTime ( time , true ) ; if ( tt == null || tt . id == api . currTtId ) return false ; sortedApiTree . remove ( api ) ; if ( api . setTt ( tt , Integer . MAX_VALUE ) ) sortedApiTree . add ( api ) ; return true ; }
target:  Moves api to the latest value before time.