Barbara -
Jakarta Commons Collections has all kinds of neat classes and utilities
for this kind of thing. While unfortunately they don't support
generics, larvalabs has a product that does. The URL
http://collections.sourceforge.net redirects to
http://larvalabs.com/collections/. The download page is at
http://sourceforge.net/project/showfiles.php?group_id=139125. However,
the most recent version is 4.0 Beta 3 dated July 7, 2005.
The link to their javadoc is
http://mail-archives.apache.org/mod_mbox/jakarta-velocity-user/, and you
can find the class "UnmodifiableMap".
Regards,
Keith
Barbara Baughman wrote:
BTW, I never pass a HashMap to the context. I have created a class
called SecureHashMap that looks exactly like HashMap but overrides all
methods that would change the content so they do nothing. So in
actual practice, my last line would read:
ctx.put("map",new SecureHashMap<String, String>(hm));
Barbara Baughman
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