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OSGi: What are the differences between Apache Felix and Apache Karaf?
...just the OSGi core runtime. Karaf provides a "distribution" based on Felix by adding other features such as a console, an SSH remoting mechanism, a file deployer and more.
In this diagram of the Karaf architecture, Felix (or other OSGi implementation - currently Equinox is also supported) is the O...
What is the difference between sites-enabled and sites-available directory?
...nce is that virtual sites listed in the sites-enabled directory are served by apache. In the sites-available directory there are the virtual sites that exist on your server but people can't access them because they are not enabled yet.
sites-available: this directory has configuration files for ...
Free FTP Library [closed]
...: http://msdn.microsoft.com/en-us/library/ms229718.aspx?
EDIT: 2019 April by https://stackoverflow.com/users/1527/
This answer is no longer valid. Other answers are endorsed by Microsoft.
They were designed by Microsoft who no longer recommend that they should be used:
We don't recommend tha...
Programmatically set height on LayoutParams as density-independent pixels
...d-coded to only support a fixed number of densities. If you want to scale by the density scaling factor, just multiply by developer.android.com/reference/android/util/… which would also be the same as doing (size * metrics.densityDpi) / DisplayMetrics.DENSITY_DEFAULT.
– hack...
Best practices for circular shift (rotate) operations in C++
...viour seems to be John Regehr's implementation. I've adapted it to rotate by the width of the type (using fixed-width types like uint32_t).
#include <stdint.h> // for uint32_t
#include <limits.h> // for CHAR_BIT
// #define NDEBUG
#include <assert.h>
static inline uint32_t ro...
Spring - @Transactional - What happens in background?
...rs injected via the proxy mechanism.
Transactions in EJB work similarly, by the way.
As you observed, through, the proxy mechanism only works when calls come in from some external object. When you make an internal call within the object, you're really making a call through the "this" reference, w...
Detecting a redirect in ajax request?
...portunity to NOT follow the redirect but you may resolve a number of tasks by using responseUrl property.
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differences in application/json and application/x-www-form-urlencoded
...a long query string.The query string contains name-
value pairs separated by & character
e.g. field1=value1&field2=value2
It can be simple request called simple - don't trigger a preflight check
Simple request must have some properties. You can look here for more info. One of
them is th...
How do you count the number of occurrences of a certain substring in a SQL varchar?
...
The first way that comes to mind is to do it indirectly by replacing the comma with an empty string and comparing the lengths
Declare @string varchar(1000)
Set @string = 'a,b,c,d'
select len(@string) - len(replace(@string, ',', ''))
...
Android requires compiler compliance level 5.0 or 6.0. Found '1.7' instead. Please use Android Tools
...e best approach is to change Compiler compliance level for whole workspace by going to Tools -> Preferences -> Java Compiler and select 1.6 from dropdown.
– nikib3ro
Oct 16 '12 at 19:41
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