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How should equals and hashcode be implemented when using JPA and Hibernate
...be detaching / attaching its instances. The latter is not that common. The former is usually best handled via:
Basing equals() / hashCode() on a business key - e.g. a unique combination of attributes that is not going to change during object (or, at least, session) lifetime.
If the above is imposs...
Twitter Bootstrap: Text in navbar
... it's worth, I had to use <p class="nav navbar-text"> to get correct formatting.
– eaj
Jan 21 '13 at 20:33
Thank...
How to execute ipdb.set_trace() at will while running pytest tests
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How would I extract a single file (or changes to a file) from a git stash?
...nation above is the commit at which changes were stashed away. We use this form of "git diff" (with two commits) because stash@{0} / refs/stash is a merge commit, and we have to tell git which parent we want to diff against. More cryptic:
$ git diff stash@{0}^! -- <filename>
should also wor...
ORA-12514 TNS:listener does not currently know of service requested in connect descriptor
...irectory it uses) - in my case, listener.ora in that directory contained information pertaining to an old database instance that i had uninstalled - quick and dirty way was to copy the entire contents of listener.ora from my current installation of Oracle Express, to that other directory that listen...
Force Java timezone as GMT/UTC
...ving Date/Time/Timestamp objects from a database ResultSet, use the second form of the getXXX methods that takes a Calendar object:
Calendar tzCal = Calendar.getInstance(TimeZone.getTimeZone("GMT"));
ResultSet rs = ...;
while (rs.next()) {
Date dateValue = rs.getDate("DateColumn", tzCal);
/...
How can I make XSLT work in chrome?
...L document here that is served with a corresponding XSL file . The transformation is left to be executed client-side, without JavaScript.
...
Checkout remote branch using git svn
...ut -b waldo-svn remotes/waldo
The -svn suffix is to avoid warnings of the form
warning: refname 'waldo' is ambiguous.
To update the git branch waldo-svn, run
git checkout waldo-svn
git svn rebase
Starting from a trunk-only checkout
To add a Subversion branch to a trunk-only clone, modify you...
what is the difference between XSD and WSDL
...velop an application in C# and when these two companies decided to share information then XML comes into picture. It helps to store and transport data between two different applications that are developed using different technologies. Note: It is not limited to a programming language, please do rese...
Unpivot with column name
...by a subquery with SELECT ... UNION ... SELECT ... Wondering about the performance of that CROSS JOIN though...
– Cristi S.
Oct 16 '18 at 20:39
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