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MongoDB: Combine data from multiple collections into one..how?
How can I (in MongoDB) combine data from multiple collections into one collection?
11 Answers
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send/post xml file using curl command line
...send/post an xml file to a local server http://localhost:8080 using curl from the command line?
8 Answers
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Example: Communication between Activity and Service using Messaging
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startService(intent);
And after in service in onStartCommand() get data from intent.
For sending data or event from a service to an application (for one or more activities):
private void sendBroadcastMessage(String intentFilterName, int arg1, String extraKey) {
Intent intent = new Intent(in...
ImportError: No module named PIL
...rsions of) PIL.
You can get more information about how to use this module from the official tutorial.
PS: In fact, on some installs, import PIL does work, which adds to the confusion. This is confirmed by an example from the documentation, as @JanneKarila found out, and also by some more recent ve...
What is Data Transfer Object?
...Transfer Object is an object that is used to encapsulate data, and send it from one subsystem of an application to another.
DTOs are most commonly used by the Services layer in an N-Tier application to transfer data between itself and the UI layer. The main benefit here is that it reduces the amoun...
Pairs from single list
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My favorite way to do it:
from itertools import izip
def pairwise(t):
it = iter(t)
return izip(it,it)
# for "pairs" of any length
def chunkwise(t, size=2):
it = iter(t)
return izip(*[it]*size)
When you want to pair all elements you...
Conda: Installing / upgrading directly from github
Can I install/upgrade packages from GitHub using conda ?
4 Answers
4
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Difference between case object and object
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Case classes differ from regular classes in that they get:
pattern matching support
default implementations of equals and hashCode
default implementations of serialization
a prettier default implementation of toString, and
the small amount of...
Which @NotNull Java annotation should I use?
...we can do is to find a pragmatic solution and mine is as follows:
Syntax
From a purely stylistic standpoint I would like to avoid any reference to IDE, framework or any toolkit except Java itself.
This rules out:
android.support.annotation
edu.umd.cs.findbugs.annotations
org.eclipse.jdt.annotat...
Check whether user has a Chrome extension installed
... hmmm chrome.extension.connect only seems to work when executed from within the extension (or any extension). I need it to work from any random js script. Any ideas?
– user179169
Jun 9 '11 at 13:55
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