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Mediator Vs Observer Object-Oriented Design Patterns

...-to-many dependency between objects so that when one object changes state, all its dependents are notified and updated automatically. The Mediator pattern: Define an object that encapsulates how a set of objects interact. Mediator promotes loose coupling by keeping objects from referring to each o...
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Cleaner way to do a null check in C#? [duplicate]

... Is this really considered cleaner? – ClassicThunder Jul 16 '13 at 13:35 23 ...
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Naming convention for utility classes in Java

... you use it consistently. Like, if you have three utility classes and you call them CustomerUtil, ProductUtils, and StoreUtility, other people trying to use your classes are going to constantly get confused and type CustomerUtils by mistake, have to look it up, curse you a few times, etc. (I heard a...
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GitHub: Reopening a merged pull request

...l need to add commits to the branch and create a new pull request, copying all the details over and probably providing a link to the original pull request to manually save the history. Might be a nice feature request for future GitHub. ...
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Get the IP address of the remote host

... This solution also covers Web API self-hosted using Owin. Partially from here. You can create a private method in you ApiController that will return remote IP address no matter how you host your Web API: private const string HttpContext = "MS_HttpContext"; private const string Remote...
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What command means “do nothing” in a conditional in Bash?

... you say do nothing when X, then rephrase it as avoid a branch where X. Usually you can make the avoidance happen by simply negating X and applying it to all other conditions. So the OPs example with the rule applied may be restructured as: if [ "$a" -lt 10 ] && [ "$a" -le 5 ] then ech...
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How can I add an animation to the activity finish()

... I override pending transition just after calling finish(); In my case, I have done it to avoid transitions. finish(); Details.this.overridePendingTransition(R.anim.nothing,R.anim.nothing); Order is important :) ...
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Blank space at top of UITextView in iOS 10

...view is a scroll view. View controllers will add a content offset automatically to scroll views, as it is assumed they will want to scroll up behind the nav bar and status bar. To prevent this, set the following property on the view controller containing the text view: self.automaticallyAdjustsSc...
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Gem::LoadError for mysql2 gem, but it's already in Gemfile

...eptember 2015 so use the above line in your Gem file and run: bundle install You should be good to go share | improve this answer | follow | ...
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When to use AtomicReference in Java?

...ke the key to needing this is because you need to do a "compareAndSet". If all I needed to do was set I wouldn't need the AtomicObject at all because of reference updates themselves being atomic? – sMoZely Jan 20 '13 at 21:46 ...