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What is Persistence Context?
...erence/en/html/architecture.html
In Java EE, a persistence context is normally accessed via an EntityManager.
http://docs.oracle.com/javaee/6/api/javax/persistence/EntityManager.html
The various states an entity can have and the transitions between these are described below:
http://docs.jboss.or...
Posting a File and Associated Data to a RESTful WebService preferably as JSON
...as JSON. Part of this application requires the client to upload a file (usually an image) as well as information about the image.
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Fatal error: Class 'ZipArchive' not found in
I have a problem that I install 'Archive_Zip 0.1.1' on Linux server, but when I try to run the script to create the zip file it gives the fatal error
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Should Github be used as a CDN for javascript libraries? [closed]
.... The last one means less total work for everybody, so it's clearly a win all around, and is more likely the more often we (developers) rely on the CDNs to serve our javascript.
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How to swap keys and values in a hash
...;:b, 3=>:c}
BUT...
If you have duplicate values, invert will discard all but the last occurrence of your values (because it will keep replacing new value for that key during iteration). Likewise, key will only return the first match:
{a: 1, b: 2, c: 2}.key(2)
=> :b
{a: 1, b: 2, c: 2}.inv...
Convert NSArray to NSString in Objective-C
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Won't this accomplish the same thing as calling [array description]?
– TechZen
Dec 1 '09 at 20:55
10
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nodeValue vs innerHTML and textContent. How to choose?
...t in firefox until FireFox 45 according to caniuse but is now supported in all major browsers.
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What C++ Smart Pointer Implementations are available?
...g limited garbage collection facilities. The first downside being that it calls delete upon destruction making them unacceptable for holding array allocated objects (new[]). It takes ownership of the pointer so two auto pointers shouldn't contain the same object. Assignment will transfer ownership a...
XPath to select multiple tags
...ve the original problem, but it results in a longer and more complex and challenging to understand XPath expression. The simpler expression in this answer, which uses the or operator produces the wanted node-set and can be specified in the "select" attribute of an <xsl:for-each> XSLT operation...
How can I write a regex which matches non greedy? [duplicate]
...eedy ? works perfectly fine. It's just that you need to select dot matches all option in the regex engines (regexpal, the engine you used, also has this option) you are testing with. This is because, regex engines generally don't match line breaks when you use .. You need to tell them explicitly tha...