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What is “the inverse side of the association” in a bidirectional JPA OneToMany/ManyToOne association
...rders (orders are a list in the customer object). There can't be an order without a customer. So the customer seems to be the owner of the orders.
But in the SQL world, one item will actually contain a pointer to the other. Since there is 1 customer for N orders, each order contains a foreign key t...
MySQL error 2006: mysql server has gone away
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It may be easier to check if the connection and re-establish it if needed.
See PHP:mysqli_ping for info on that.
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What is Shelving in TFS?
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Shelving has many uses. The main ones are:
Context Switching: Saving the work on your current task so you can switch to another high priority task. Say you're working on a new feature, minding your own business, when your boss runs in and says "Ahhh! Bug Bug Bug!" and you have...
Preloading CSS Images
I have a hidden contact form which is deployed clicking on a button. Its fields are set as CSS background images, and they always appears a bit later than the div that have been toggled.
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Why can't I overload constructors in PHP?
...ing several different combinations of parameters, use the factory pattern with a private constructor.
For example:
public MyClass {
private function __construct() {
...
}
public static function makeNewWithParameterA($paramA) {
$obj = new MyClass();
// other initi...
Javascript trick for 'paste as plain text` in execCommand
I have a basic editor based on execCommand following the sample introduced here. There are three ways to paste text within the execCommand area:
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Blurry text after using CSS transform: scale(); in Chrome
...have this problem a number of times and there seems to be 2 ways of fixing it (shown below). You can use either of these properties to fix the rendering, or both at the same time.
Backface visibility hidden fixes the problem as it simplifies the animation to just the front of the object, whereas th...
Change the URL in the browser without loading the new page using JavaScript
... current page but would also change the URL in the browser so if the user hits reload or bookmark, then the new URL is used?
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Class vs. static method in JavaScript
...ototypal language, rather than a class-based language1. Foo isn't a class, it's a function, which is an object. You can instantiate an object from that function using the new keyword which will allow you to create something similar to a class in a standard OOP language.
I'd suggest ignoring __proto...
Sleeping in a batch file
When writing a batch file to automate something on a Windows box, I've needed to pause its execution for several seconds (usually in a test/wait loop, waiting for a process to start). At the time, the best solution I could find uses ping (I kid you not) to achieve the desired effect. I've found a be...