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HQL ERROR: Path expected for join
...
select u from UserGroup ug inner join ug.user u
where ug.group_id = :groupId
order by u.lastname
As a named query:
@NamedQuery(
name = "User.findByGroupId",
query =
"SELECT u FROM UserGroup ug " +
"INNER JOIN ug.user u WHERE ug.group_id = :groupId ORDER BY u.lastname"
)
...
How to get a Fragment to remove itself, i.e. its equivalent of finish()?
...er {
// onCreate etc
@Override
public void onFragmentSuicide(String tag) {
// Check tag if you do this with more than one fragmen, then:
getSupportFragmentManager().popBackStack();
}
}
public interface SuicidalFragmentListener {
void onFragmentSuicide(String ta...
How do I get the height and width of the Android Navigation Bar programmatically?
...navigation bar on the bottom of the screen is not easily removable in Android. It has been part of Android since 3.0 as a replacement for hardware buttons. Here is a picture:
...
How to change root logging level programmatically for logback
...gged is correct
assertThat(loggingEvent.getFormattedMessage(), containsString("hello world"));
}
}
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How to know if an object has an attribute in Python
... be working for checking for functions in namespace as well, e.g.: import string hasattr(string, "lower")
– riviera
Apr 8 '11 at 12:54
...
How do I include inline JavaScript in Haml?
...
Haml did not add CDATA for me, nor did %script work for me if there were any irregular indentations in the js.
– agmin
Oct 24 '13 at 20:46
...
How to find where a method is defined at runtime?
...ou're on Ruby 1.9+, you can use source_location
require 'csv'
p CSV.new('string').method(:flock)
# => #<Method: CSV#flock>
CSV.new('string').method(:flock).source_location
# => ["/path/to/ruby/1.9.2-p290/lib/ruby/1.9.1/forwardable.rb", 180]
Note that this won't work on everything, l...
What does this thread join code mean?
...e = bad practice
static int sharedVar = 0;
public static void main(String[] args) throws Exception {
Thread threadB = new Thread(() -> {sharedVar = 1;});
threadB.start();
threadB.join();
while (true)
System.out.print(sharedVar);
}
}
Alwa...
Best Practices: Salting & peppering passwords?
...sult in a far weaker hash than bcrypt(pw, salt) if hash() returns a binary string.
Working Against Design
The way bcrypt (and other password hashing algorithms) were designed is to work with a salt. The concept of a pepper was never introduced. This may seem like a triviality, but it's not. The rea...
Connecting to TCP Socket from browser using javascript
... features are only available for extensions and, although documented, are hidden for the moment. Having said that, some developers are already creating interesting projects using it, such as this IRC client.
To access this API, you’ll need to enable the experimental flag in your extension’s man...