Tuesday May 23, 2006 Comparing Timestamp and Date
Ran into this interesting little bug the other day:
Exception in thread "main" java.lang.ClassCastException: java.util.Date
at java.sql.Timestamp.compareTo ...
Info can be found below:
http://bugs.sun.com/bugdatabase/view_bug.do;:YfiG?bug_id=6207898
Basically, with Java 1.5, you cannot always compare a Timestamp to a Date, even though a Timestamp is a Date.
Thus given
java.util.Date date = new java.util.Date();
java.sql.Timestamp timestamp = new java.sql.Timestamp()
The following may throw and exception:
timestamp.compareTo(date)
The workaround is to call the compareTo method on the the Date object instead.
date.compareTo(timestamp)
Of course the result will be the opposite of what you originally intented, but as long as you realize this you can work around it.
Posted by rickg ( May 23 2006, 01:35:34 AM PDT ) Permalink Comments [0]