Re: Test or NullPointerException catch
GuyBrush Treepwood wrote:
I'm developing a webapplication in Java. If I fetch a lot
of objects from the session or request, and they all
could be null, should I test them all separate with if
statements, or should I just try what I want to do with
them en catch a NullPointerException ?
What are the error handling/reporting requirements for these
operations?
For example, if you need to generate an error message that
depends on which variable was null, it may be easier to do a
separate null test and report for each variable.
On the other hand, if you plan to abandon the whole
transaction for any null, and only intend to say what
transaction failed, your code could be simpler with a single
try-catch than with separate tests.
In general, pick your intended user interface for the error
reporting, and design your code to implement it.
Patricia
.
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