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How does autowiring work in Spring?
...s can be a startup listener.
Autowiring happens by placing an instance of one bean into the desired field in an instance of another bean. Both classes should be beans, i.e. they should be defined to live in the application context.
What is "living" in the application context? This means that the c...
Collapse sequences of white space into a single character and trim string
...icate predicateWithFormat:@"SELF != ''"];
NSArray *parts = [theString componentsSeparatedByCharactersInSet:whitespaces];
NSArray *filteredArray = [parts filteredArrayUsingPredicate:noEmptyStrings];
theString = [filteredArray componentsJoinedByString:@" "];
...
Apache2: 'AH01630: client denied by server configuration'
... hostname, IP address, and other
characteristics of client requests was done using the directives
Order, Allow, Deny, and Satisfy.
In 2.4, such access control is done in the same way as other
authorization checks, using the new module mod_authz_host.
The new directive is Require:
2.2 c...
How do I discover memory usage of my application in Android?
...ould be of little use, since the Java heap limit is there in part to avoid one app from being able to stress the system to this point.
Going lower-level, you can use the Debug API to get raw kernel-level information about memory usage: android.os.Debug.MemoryInfo
Note starting with 2.0 there is al...
FixedThreadPool vs CachedThreadPool: the lesser of two evils
...hould use for your situation as there are no negative consequence to using one for long running threads. The comment in the java doc about CachedThreadPools being suitable for short tasks merely suggest that they are particularly appropriate for such cases, not that they cannot or should not be use...
Using an HTML button to call a JavaScript function
...cification.
The 1st and 2nd methods are mutually exclusive, meaning using one (the 2nd) will override the other (the 1st). The 3rd method will allow you to attach as many functions as you like to the same event handler, even if the 1st or 2nd method has been used too.
Most likely, the problem lie...
Why is the C++ STL is so heavily based on templates? (and not on *interfaces*)
...over procedural languages back in the 70's when it was invented. But it's honestly not all it's cracked up to be. In many cases it is clumsy and verbose and it doesn't really promote reusable code or modularity.
That is why the C++ community is today far more interested in generic programming, and ...
React.js: Wrapping one component into another
...ld" statements, that allow to do some sort of inversion of control to wrap one template inside of another.
3 Answers
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AngularJS Directive Restrict A vs E
... attribute versus an element? Use an element when
you are creating a component that is in control of the template. The
common case for this is when you are creating a Domain-Specific
Language for parts of your template. Use an attribute when you are
decorating an existing element with new fu...
When should I use Inline vs. External Javascript?
...s definitely a reason to keep them external, but if the configuration is a one-liner (or in general shorter than the HTTP overhead you would get for making those files external) it's performance-wise better to keep them inline. Always remember, that each HTTP request generates some overhead in terms...