JavaFX 2.0 :: Manipulate Selection Of Rows In A Table

I have a little problem in my Java FX application. in a tableview, I add records whatever... And i have a button that delete the selected record in the tableview, This button delete too the related record in a database.
 
When I select a row in this table , I store the ID of that record in a global variable to have it available . Thus, when I click on the delete button, delete the record from the database based on the ID that I stored in the global variable.
 
The problem is that tableview has a curious property. If I select the last row and I click on the delete button ( removing the last record of the tableview ) , the next higher row is automatically selected ; and causes the ID value stored change .
 
The row is deleted in the tableview is correct but apparently , when it comes to the method deletes the record from the database, the global variable ID is already updated and delete another record.
 
I would like to disable that property of the table so that the row can be selected only by the mouse ... or some other solution . 

...
@Override
public void initialize(URL url, ResourceBundle rb){
     table.getSelectionModel().setSelectionMode(SelectionMode.SINGLE);
     table.getSelectionModel().selectedItemProperty().addListener(new ChangeListener<Object>(){

[Code] .....