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When to use AtomicReference in Java?
....e. thread-safe, non-trivial) operations on a reference, for which monitor-based synchronization is not appropriate. Suppose you want to check to see if a specific field only if the state of the object remains as you last checked:
AtomicReference<Object> cache = new AtomicReference<Object&...
Show pop-ups the most elegant way
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Based on my experience with AngularJS modals so far I believe that the most elegant approach is a dedicated service to which we can provide a partial (HTML) template to be displayed in a modal.
When we think about it modals ...
What is the difference between concurrency, parallelism and asynchronous methods?
... application awaiting the response.
For example, getting data from a database could take time but we don't want to block our UI waiting for the data. The async call takes a call-back reference and returns execution back to your code as soon as the request has been placed with the remote system. Yo...
difference and when to use getApplication(), getApplicationContext(), getBaseContext() and someClass
... the difference between getApplication() , getApplicationContext( ), getBaseContext() , getContext() and someClass.this and especially when to use the these methods in the following code lines:
...
How to replace captured groups only?
... The parenthesis are used to create "groups", which then get assigned a base-1 index, accessible in a replace with a $, so the first word (\w+) is in a group, and becomes $1, the middle part (\d+) is the second group, (but gets ignored in the replace), and the third group is $3. So when you give ...
“git pull” or “git merge” between master and development branches
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Be careful with rebase. If you're sharing your develop branch with anybody, rebase can make a mess of things. Rebase is good only for your own local branches.
Rule of thumb, if you've pushed the branch to origin, don't use rebase. Instead, us...
Default implementation for Object.GetHashCode()
...these instances are stored in a hash set or a hash table.
[...] Reflection-based implementation is slow. Very slow.
[...] Both ValueType.Equals and ValueType.GetHashCode have a special optimization. If a type does not have "pointers" and is properly packed [...] then more optimal versions are used: ...
How do streaming resources fit within the RESTful paradigm?
...ources. This all works well when you're dealing with something like a database assets - but how does this translate to streaming data? (Or does it?) For instance, in the case of video, it seems silly to treat each frame as resource that I should query one at a time. Rather I would set up a socket...
Explaining Apache ZooKeeper
... server with a bounded but undefined delay.
In detail
The replicated database of ZooKeeper comprises a tree of znodes, which are entities roughly representing file system nodes (think of them as directories). Each znode may be enriched by a byte array, which stores data. Also, each znode may have ...
What's the difference between ngModel.$modelValue and ngModel.$viewValue
...ar sees this change and calls $formatters to create an updated $viewValue (based on the new $modelValue) to be sent to the DOM.
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