Object Context

[entius]

Hi
i'll show you several codes, the first ones work but then not, i'd like to know how to make it works ...
(thanks to iza & globos, i need not to "call" directly the class, you'll see):
///////////////////
this is the code that don't change
///////////////////
list = new String[2];
list[0] = "SCENA";
list[1] = "QUERY";

DataObjectScena = new DataObjectScena();
DataObjectQuery = new DataObjectQuery();

classList = new Object[2];
classList[0] = DataObjectScena;
classList[1] = DataObjectQuery;

public void handle (Object item) {
// item is an object that is only useful
// to decide which object-listModel i
// have to call.

for (int i=0; i<list.length; i++) {
if ( item.toString().equals(list) ) {
///////////////////
and this is the key code
///////////////////
a_JList.setListData
(((DataObjectScena)classList[0]).methods));
}}
///////////////////
it works, but always the method of DataObjectScena
///////////////////
a_JList.setListData
(classList[0].methods);
}}
///////////////////
it doesn't works
///////////////////
a_JList.setListData
(((classList[0])classList[0]).methods);
}}
///////////////////
it doesn't works, neither
///////////////////
of course i could build if ... and use (DataObjectScena)
else if ... and use (DataObjectQuery), but what about if i have 50 kinds of classes???

 

[Tarwn]

Well, as you would have to add 50 lines to the array if you have 50 classes, instead of using an if, if else, etc. statement, you could just assign them all to a case statement, each new class would only need a single addition to that statement which would be as easy as adding to an array of names.