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What is an EJB, and what does it do?
...on: other EJBs, or resources like a JPA entity manager, a JDBC datasource, etc. can be injected into the EJB.
concurrency: the container makes sure that only one thread at a time invokes a method of your EJB instance.
distribution: some EJBs can be called remotely, from another JVM.
failover and loa...
How to configure an app to run correctly on a machine with a high DPI setting (e.g. 150%)?
...oo. That of course leads to very blurry text (on all controls like buttons etc.).
5 Answers
...
Rolling median algorithm in C
... first idea partitions the data into two data structures (heaps, multisets etc) with O(ln N) per insert/delete does not allow the quantile to be changed dynamically without a large cost. I.e. we can have a rolling median, or a rolling 75% but not both at the same time.
Segment tree
The second idea...
Call An Asynchronous Javascript Function Synchronously
...n my case, are writing a glorified shell script with no callbacks, events, etc.), DO NOT DO THIS!
But here's how you can do this:
./calling-file.js
var createClient = require('sync-rpc');
var mySynchronousCall = createClient(require.resolve('./my-asynchronous-call'), 'init data');
var param1 = '...
How do I discover memory usage of my application in Android?
...f the device, since some of that RAM is needed for the radio, DMA buffers, etc).
MemFree is the amount of RAM that is not being used at all. The number you see here is very high; typically on an Android system this would be only a few MB, since we try to use available memory to keep processes runn...
Valid values for android:fontFamily and what they map to?
...ince you can limit the search to only the API's, blog posts, release notes etc.
– Ahmad
Oct 30 '13 at 22:50
8
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MySQL stored procedure vs function, which would I use when?
...)
Whereas
Stored procedures Can affect the state of database using commit etc.
refrence: J.1. Restrictions on Stored Routines and Triggers
Functions can't use FLUSH statements whereas Stored procedures can do.
Stored functions cannot be recursive Whereas Stored procedures can be.
Note: Recursive st...
When is JavaScript synchronous?
...at JavaScript can have are events (user interaction, Ajax request results, etc) and timers, basically actions that might happen at any time.
I would recommend you to give a look to the following article:
How JavaScript Timers Work
That article will help you to understand the single-threaded nat...
Pointers in C: when to use the ampersand and the asterisk?
...ument (just about any of the str* functions, *scanf and *printf functions, etc.).
In practice, you will probably never call a function with an array expression using the & operator, as in:
int arr[N];
...
foo(&arr);
void foo(int (*p)[N]) {...}
Such code is not very common; you have to...
Chrome Extension how to send data from content script to popup.html
... declaring unnecessary permissions, making superflous calls to API methods etc).
I did not test your code myself, but from a quick overview I believe that correcting the following could result in a working solution (although not very close to optimal):
In manifest.json: Change the order of the con...