Hi together,
I've got a component which must listen to different eventLists.
It is not possible to implement the ListEventListener typed via generics interface more than once.
Therefore I added just one method (without generics), ask the event for the eventListSource, compare it to the different eventLists and call specific methods which handle the specific events.
If my if-clause says that the eventListSource is the eventList A than I call handleAEvent(...) method. In this method I try to retrieve the object either via event.getOldObject or via getIndex and get(index). My problem is, that sometimes i get objects of other lists...
Is my problem described clearly? Can anyone help me?
Here a code snipped...
dataManager.getFsrs().addListEventListener(this);
dataManager.getFsrFunctions().addListEventListener(this);
dataManager.getElements().addListEventListener(this);
...
public void listChanged(ListEvent event) {
//Iterate through all list changes
while (event.hasNext()) {
event.next(); //get the next change event
if (event.getSourceList().equals(dataManager.getListA())){
handleFsrListEvent(event);
}else if (event.getSource().equals(dataManager.getListB())){
handleFsrFunctionListEvent(event);
}else if (event.getSource().equals(dataManager.getListC())){
handleElementListEvent(event);
}
}
}
...
private void handleFunctionListEvent(ListEvent<Function> event) {
if (event.getType() == ListEvent.INSERT){
Function function = event.getSourceList().get(event.getIndex());
ElementRow<Function> functionRow = new ElementRow<Function>(function);
ElementRow parentRow = findRow(function.getElement());
addRow(parentRow, functionRow);
} else if (event.getType() == ListEvent.DELETE){
Function function = event.getOldValue();
//SOMETIMES HERE I GOT OTHER VALUES THAN FUNCTIONS...
Row row = findRow(function);
removeRow(row);
}
}
