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What are detached, persistent and transient objects in hibernate?
...stance will become a detached instance: it isn't attached to a Session anymore (but can still be modified and reattached to a new Session later though).
All this is clearly explained in the whole Chapter 10. Working with objects of the Hibernate documentation that I'm only paraphrasing above. Defin...
What is the difference between String.Empty and “” (empty string)?
...e difference between String.Empty and "" , and are they interchangable, or is there some underlying reference or Localization issues around equality that String.Empty will ensure are not a problem?
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How do I tell CPAN to install all dependencies?
...; $c->edit(build_requires_install_policy => "yes"); $c->commit'
Or combine it with local::lib module for non-privileged users:
perl -MCPAN -Mlocal::lib=~/perl5 -e 'my $c = "CPAN::HandleConfig"; $c->load(doit => 1, autoconfig => 1); $c->edit(prerequisites_policy => "follow"...
The key must be an application-specific resource id
...
i still don't get the pattern. i want to set two tags corresponding to say a first and last name. where do i define the integer IDs for these?
– Jeffrey Blattman
May 26 '11 at 1:04
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Why does scanf() need “%lf” for doubles, when printf() is okay with just “%f”?
... printf() can use " %f " regardless of whether its argument is a double or a float ?
5 Answers
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What does “error: option --single-version-externally-managed not recognized” indicate?
I seem to have suddenly started encounter the error error: option --single-version-externally-managed not recognized when pip install ing varions packages (including PyObjC and astropy ). I've never seen this error before, but it's now also showing up on travis-ci builds for which nothing has...
Archive the artifacts in Jenkins
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Your understanding is correct, an artifact in the Jenkins sense is the result of a build - the intended output of the build process.
A common convention is to put the result of a build into a build, target or bin directory.
The Jenkins archiver ...
Redefining NULL
I'm writing C code for a system where address 0x0000 is valid and contains port I/O. Therefore, any possible bugs that access a NULL pointer will remain undetected and at the same time cause dangerous behaviour.
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Least common multiple for 3 or more numbers
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You can compute the LCM of more than two numbers by iteratively computing the LCM of two numbers, i.e.
lcm(a,b,c) = lcm(a,lcm(b,c))
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Can we have functions inside functions in C++?
...(C++11, C++14, and C++17), you can have functions inside functions in the form of a lambda:
int main() {
// This declares a lambda, which can be called just like a function
auto print_message = [](std::string message)
{
std::cout << message << "\n";
};
//...