Re: Beginnerquestion about if (personName==null || personName.equals(""))
Re: Beginnerquestion about if (personName==null || personName.equals(""))
- Subject: Re: Beginnerquestion about if (personName==null || personName.equals(""))
- From: Cornelius Jaeger <email@hidden>
- Date: Fri, 7 Sep 2007 23:27:00 +0200
More precisely
def z = null
z?.doIt()
does not throw a nullpointer, just returns null.
don't know if this is what you got for objective-c but it's still
pretty nice.
regards
cornelius
On 07.09.2007, at 22:57, Cornelius Jaeger wrote:
Or use WOGroovy and do it the groovy way:
Groovy has a safe dereference operator ?.
http://groovy.codehaus.org/Null+Object+Pattern
many regards
Cornelius
On 07.09.2007, at 22:00, Kieran Kelleher wrote:
And if you want to save yourself the PITA, just throw in apache
commons lang jar into your own foundation framework and use the
many useful standardized utilities that are in there:
http://commons.apache.org/lang/
For example check out StringUtilis.isBlank(...) and
StringUtils.isEmpty(...) at
http://commons.apache.org/lang/api-release/index.html
regards, Kieran
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