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Jackson and generic type reference
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Couple of notes: code can be simplified a lot by noting that all exceptions are subtypes of IOException (need just one catch), and that the default annotation introspector is already JacksonAnnotationIntrospector -- so no need to do anything to ObjectMapper, just constru...
What does Connect.js methodOverride do?
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Global and local variables in R
...ment.
When you're inside a function R creates a new environment for you. By default it includes everything from the environment in which it was created so you can use those variables as well but anything new you create will not get written to the global environment.
In most cases <<- will a...
How do I sort a Set to a List in Java?
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The answer provided by the OP is not the best. It is inefficient, as it creates a new List and an unnecessary new array. Also, it raises "unchecked" warnings because of the type safety issues around generic arrays.
Instead, use something like t...
Determine if ActiveRecord Object is New
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Using {} in a case statement. Why?
...zation:
It is possible to transfer into a block, but not in a way that bypasses declarations with initialization. A program that jumps87 from a point where a variable with automatic storage duration is not in scope to a point where it is in scope is ill-formed unless the variable has scalar type...
Hidden features of Windows batch files
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PUSHD path
Takes you to the directory specified by path.
POPD
Takes you back to the directory you "pushed" from.
share
edited Apr 6 '11 at 12:49
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How to initialize static variables
...rse non-trivial expressions in initializers.
I prefer to work around this by adding code right after definition of the class:
class Foo {
static $bar;
}
Foo::$bar = array(…);
or
class Foo {
private static $bar;
static function init()
{
self::$bar = array(…);
}
}
Foo::init();
...
Does Android support near real time push notification?
...solution:
The Android client must maintain a persistent TCP connection by waking up periodically
to send a heartbeat to the XMPP server.
This clearly imposes a cost in terms of power usage. An estimate of this cost is
provided below:
Using a 1400mAh battery (as supplied in the Nexu...
Xcode “The private key for is not installed on this mac - distributing”
...rom the iOS developer website.
Generate a new iOS Distribution Certificate by going to XCode Preferences->Accounts->View Details and then clicking the + underneath the list of signing identities.
Go back to the developer website and make sure all your provisioning profiles are configured with ...