They do a pretty cool thing: force you to tell “the truth” — no matter how subjective this term is — as opposed to emasculated official style: what you really did (whatever it means to you); what opensource/published projects did you participate in; Top Stack questions you answered; your professional reading and (sic!) writing. Here [...]
I wonder why this was not in JDK/Groovy Collections. Just put together a Comparator for StackOverflow question – a Groovy Comparator that would sort class field names in the declaration order. Feel free to use: class PropComparator implements Comparator { private Class clazz PropComparator(Class clazz) { this.clazz = clazz } int compare(Object o1, Object o2) [...]
It hasn’t even been a ten years that DB2, one of the most, er, expensive DBMSes, got a feature needed by every other application – dataset paging. Before, you had to use window functions rownumber() and fetch first 40 rows only. When used by Hibernate, this resulted ugliness like: select * from ( select inner2_.*, [...]
Hibernate bug 1895 seems to be still there since 2006. If, for instance, in Grails, such a syntax won’t work for you (it won’t): def books = Book.findAll(“FROM Book AS b JOIN Chapter AS c WHERE c.active = :isActive”) with a NullPointerException in “HqlSqlWalker.createFromJoinElement” — just use alternative join syntax, via WHERE: def books = [...]
A friend asked me for it, so probably someone might need a jumpstart in unit tests. Here’s a short list of short (though very deep, if not best) intros. Except for JUnit cookbook (~2 pages) (which has a lot of “ports”, like CppUnit cookbook), I’d name: “Endo-Testing: Unit Testing with Mock Objects” at mockobjects.com (Tim [...]
