Re: Help with Qualifier and NSKeyValueCoding.NullValue

Tue, 11 Apr 2006 12:29:07 -0700

On Apr 11, 2006, at 9:08 AM, Kieran Kelleher wrote:

When I include this qualifier in a qualifier constructed of other qualifiers ANDed and ORed, I get the stack trace shown below. If I leave it out of the qualifier construct, I have no problems. Any idea why this is wrong? endDate is an NSTimestamp mapped to DateTime column.

            EOQualifier endEqualsNullQualifier = new EOKeyValueQualifier( "endDate",
                                                                          EOQualifier.QualifierOperatorEqual,
                                                                          NSKeyValueCoding.NullValue );

Exception while processing scheduled tasks

java.lang.ClassCastException

Maybe the class cast exception occurs because endDate is a NSTimestamp, not a NSKeyValueCoding.Null.  I've never used NSKeyValueCoding.NullValue to signify null in a qualifier.  Have you tried "null" instead? 

Aloha,
Art

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