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How to store a list in a column of a database table
...st in a column is a bad idea, but you fail to mention why. Since I'm just starting out with SQL, a little bit of the "why" would be very helpful indeed. For instance, you say that I'm "fighting an uphill battle and violating one of the most basic principles of relational database design for no goo...
The difference between the 'Local System' account and the 'Network Service' account?
...the service runs under the 'Network Service' account, the external process starts up but it fails to create the COM object. The error returned from the COM object creation is not a standard COM error (I think it's specific to the COM object being created).
...
PHP: exceptions vs errors?
...'error_to_exception' );
function global_exception_handler( $ex )
{
ob_start();
dump_exception( $ex );
$dump = ob_get_clean();
// send email of dump to administrator?...
// if we are in debug mode we are allowed to dump exceptions to the browser.
if ( defined( 'DEBUG' ) &...
Create a custom event in Java
...o look into the observer pattern.
Here's some sample code to get yourself started:
import java.util.*;
// An interface to be implemented by everyone interested in "Hello" events
interface HelloListener {
void someoneSaidHello();
}
// Someone who says "Hello"
class Initiater {
private Lis...
Gson custom seralizer for one variable (of many) in an object using TypeAdapter
...tes something that should be easy but actually requires a lot of code.
To start off, write an abstract TypeAdapterFactory that gives you hooks to modify the outgoing data. This example uses a new API in Gson 2.2 called getDelegateAdapter() that allows you to look up the adapter that Gson would use ...
call a static method inside a class?
...n way of calling a static method:
self::staticMethod();
Now, before you start thinking that the :: is the static call operator, let me give you another example:
self::bar();
This will print baz = 1, which means that $this->bar() and self::bar() do exactly the same thing; that's because :: i...
CursorLoader usage without ContentProvider
Android SDK documentation says that startManagingCursor() method is depracated:
5 Answers
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How to implement the activity stream in a social network
...ling your own, you could look to a third party service used via an API. I started one called Collabinate (http://www.collabinate.com) that has a graph database backend and some fairly sophisticated algorithms for handling large amounts of data in a highly concurrent, high performance manner. While...
Why is the Java main method static?
...ming Language Concepts - Section 2.17 Execution:
The Java virtual machine starts execution by invoking the method main of some specified class and passing it a single argument, which is an array of strings. This causes the specified class to be loaded (§2.17.2), linked (§2.17.3) to other types th...
How to use unicode characters in Windows command line?
...ppresses the output "Active code page: 65001" you would get every time you start a new command line windows.
A full list of all available number you can get from Code Page Identifiers
Note, the settings will apply only for the current user. If you like to set it for all users, replace line SET ROO...