RE: [Jython-users] How Does One "Cast" In Jython?

[nr n. <new...@ho...>]

Jeff,

Thanx for the note.  It's not so much that I have a current need for cast; 
it's more were I to need it sometime down the line, especially since I use 
jython to interact w/ java libraries, and java libraries often call for 
casting base classes/interfaces to more specialized versions.

A contrived (and workaround-able) example follows:

# The following creates a JTable, with data for 1 row
# The JTable constructor automatically constructs a DefaultTableModel

rowdata = [[1, 'apple']]
colnames = ['#', 'name']
table = JTable(rowdata, colnames)

At this point the only table-type model accessing method table exposes is 
getModel(), which returns a TableModel.  The way to access this as a 
DefaultTableModel, in java syntax, would be via a cast, as:

// The following cast is simply to make javac happy
DefaultTableModel dtm = (DefaultTableModel)table.getModel();

As I mentioned, the above is contrived.  One solution would be explicitly to 
create, to use and to save away a reference to a DefaultTableModel during 
table creation.

Still, other situations may not be as amenable to workarounds, and ergo my 
question about casts.

--A


----Original Message Follows----
From: Jeff Emanuel <JEm...@lg...>
To: "'nr nr '" <new...@ho...>
Subject: RE: [Jython-users] How Does One "Cast" In Jython?
Date: Fri, 18 Apr 2003 21:40:49 -0500

There is no cast in jython.  Can you describe
the situation that makes you want to cast?



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