How to iterate a tableView in Javafx or Scalafx? -

i quite new @ scala. use tableview has custom type "constraint", , need iterate row.

here have gotten far:

class constraintview(val stage : stage) {  var obs : observablebuffer[constraint]=observablebuffer()  var listconst : list[constrainttrait]=list()  val checkcolumn=new tablecolumn[constraint, java.lang.boolean] { text = "" cellvaluefactory=_.value.initialselection.delegate }  checkcolumn.setcellfactory(checkboxtablecell.fortablecolumn(checkcolumn))    stage.title="constraint table view" stage.scene=new scene {   val tab=new tableview[constraint](obs) {     editable=true     columns ++=list(checkcolumn,       new tablecolumn[constraint, string] {         text="constraint name"         cellvaluefactory=_.value.constraintnameprop        },       new tablecolumn[constraint, string] {         text = "result"         cellvaluefactory=_.value.resultprop       }      )   }    content=tab   } 

in java, do

for (constraint c : tab.getitems()) {     // c } 

or

tab.getitems().foreach(c -> {     // c }); 

i don't know scala, perhaps enough able translate.