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Can someone explain mappedBy in JPA and Hibernate?
...ing mapping of it at that. You're telling both models that they "own" the IDAIRLINE column. Really only one of them actually should! The 'normal' thing is to take the @JoinColumn off of the @OneToMany side entirely, and instead add mappedBy to the @OneToMany.
@OneToMany(cascade = CascadeType.ALL...
How to get the name of enumeration value in Swift?
...s on each case to return a string literal. In addition, this works automatically for any enum, even if no raw-value type is specified.
debugPrint(_:) & String(reflecting:) can be used for a fully-qualified name:
debugPrint(city)
// prints "App.City.Melbourne" (or similar, depending on the full...
How can I redirect HTTP requests made from an iPad?
...ound this limitation of the iPad is to use a HTTP proxy server, such as Squid running on another machine where you can edit the hosts file.
On the iPad Under Settings -> Network -> Wi-Fi -> (Your network) There is a HTTP Proxy setting which can be set to manual. Enter you proxy informatio...
Generate random numbers following a normal distribution in C/C++
...er transform combined with some uniform generators suffers from an anomaly called Neave Effect1.
For best precision, I suggest drawing uniforms and applying the inverse cumulative normal distribution to arrive at normally distributed variates. Here is a very good algorithm for inverse cumulative nor...
Avoiding instanceof in Java
.... in this case. Clearly this is not practical. Sometimes it isn't even logically the right place to put the code. He recommends the 'instanceof' approach as being the lesser of several evils.
As with all cases where you are forced to write smelly code, keep it buttoned up in one method (or at most ...
Is it safe to push_back an element from the same vector?
...gt The client is not obligated to maintain the precondition throughout the call; only to ensure that it is met at the initiation of the call.
– bames53
Sep 13 '13 at 15:08
6
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Ruby on Rails form_for select field with class
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Right on the money, thank you so much, that did the trick! I knew that it had to be something simple and of course it was.
– Patrick
Nov 2 '10 at 21:34
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How do I wait for an asynchronously dispatched block to finish?
...ing suites, we must ensure the test does not finish until the asynchronous call is done). This is one of those rare situations where the semaphore technique for blocking the main thread might be necessary.
So with my apologies to the author of this original question, for whom the semaphore techniq...
Set custom attribute using JavaScript
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Use the setAttribute method:
document.getElementById('item1').setAttribute('data', "icon: 'base2.gif', url: 'output.htm', target: 'AccessPage', output: '1'");
But you really should be using data followed with a dash and with its property, like:
<li ... data-icon="base....
What are the pros and cons of the leading Java HTML parsers? [closed]
... degree forgiving and lenient with non-wellformed HTML ("tagsoup"), like JTidy, NekoHTML, TagSoup and HtmlCleaner. You usually use this kind of HTML parsers to "tidy" the HTML source (e.g. replacing the HTML-valid <br> by a XML-valid <br />), so that you can traverse it "the usual way" u...