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How to synchronize a static variable among threads running different instances of a class in Java?
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194
There are several ways to synchronize access to a static variable.
Use a synchronized static...
How to order results with findBy() in Doctrine
...eBinBundle:Marks')
->findBy(
array('type'=> 'C12'),
array('id' => 'ASC')
);
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Mongo: find items that don't have a certain field
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171
Yeah, it's possible using $exists:
db.things.find( { a : { $exists : false } } ); // return i...
Turning Sonar off for certain code
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edited Aug 22 '19 at 22:01
Rich Dougherty
3,1091818 silver badges2323 bronze badges
answered ...
How to switch a user per task or set of tasks?
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With Ansible 1.9 or later
Ansible uses the become, become_user, and become_method directives to achieve privilege escalation. You can apply them to an entire play or playbook, set them in an included playbook, or set them for a particula...
Formatting “yesterday's” date in python
...ort date, timedelta
>>> yesterday = date.today() - timedelta(days=1)
>>> yesterday.strftime('%m%d%y')
'110909'
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Aligning rotated xticklabels with their respective xticks
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xlabels = ['Ticklabel %i' % i for i in range(n)]
fig, axs = plt.subplots(1,3, figsize=(12,3))
ha = ['right', 'center', 'left']
for n, ax in enumerate(axs):
ax.plot(x,y, 'o-')
ax.set_title(ha[n])
ax.set_xticks(x)
ax.set_xticklabels(xlabels, rotation=40, ha=ha[n])
...
mongodb/mongoose findMany - find all documents with IDs listed in array
...ind({
'_id': { $in: [
mongoose.Types.ObjectId('4ed3ede8844f0f351100000c'),
mongoose.Types.ObjectId('4ed3f117a844e0471100000d'),
mongoose.Types.ObjectId('4ed3f18132f50c491100000e')
]}
}, function(err, docs){
console.log(docs);
});
This method will work well eve...
Using git to get just the latest revision
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Use git clone with the --depth option set to 1 to create a shallow clone with a history truncated to the latest commit.
For example:
git clone --depth 1 https://github.com/user/repo.git
To also initialize and update any nested submodules, also pass --recurse-submodules...