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What's the difference between session.persist() and session.save() in Hibernate?
...also guarantees that it will
not execute an INSERT statement if it
is called outside of transaction
boundaries. This is useful in
long-running conversations with an
extended Session/persistence context.
A method like persist() is required.
save() does not guarantee the same, it...
How do I contribute to other's code in GitHub? [closed]
...
Ideally you:
Fork the project
Make one or more well commented and clean commits to the repository. You can make a new branch here if you are modifying more than one part or feature.
Perform a pull request in github's web inter...
What is SaaS, PaaS and IaaS? With examples
...ike virtual-machine disk image library, block and file-based storage, firewalls, load balancers, IP addresses, virtual local area networks etc.
Examples: Amazon EC2, Windows Azure, Rackspace, Google Compute Engine.
PaaS (Platform as a Service), as the name suggests, provides you computing platform...
Create RegExps on the fly using string variables
...
With string literals this is easy enough.
Not really! The example only replaces the first occurrence of string_to_replace. More commonly you want to replace all occurrences, in which case, you have to convert the string into a global (/.../g) RegExp. You can do this from a...
Get timezone from DateTime
...mezone information. It may know if it's UTC or local, but not what local really means.
DateTimeOffset is somewhat better - that's basically a UTC time and an offset. However, that's still not really enough to determine the timezone, as many different timezones can have the same offset at any one po...
Preventing scroll bars from being hidden for MacOS trackpad users in WebKit/Blink
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One thing to mention is that, in my testing and a really old comment by someone else it seems you can't have an always-on scrollbar AND the momentum-like scrolling that people are used to with iOS. Doing the momentum-scrolling CSS caused my custom scrollbars to disappear.
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Benefit of using Parcelable instead of serializing object
...our objects.
Also realize that Android provides two mechanisms that allow you to pass
data to another
process. The first is to pass a bundle to an activity using an intent,
and the second is to pass a
Parcelable to a service. These two mechanisms are not interchangeable and
...
Google fonts URL break HTML5 Validation on w3.org
... @PatrickMoore 2 things: a) your server upload/response speed vs your end-user download speed b) time to create another connection (server response time vs end-user response time), theoretically, if you are loading 2 "heavy" fonts and your page is otherwise loading fast, loading them se...
How many String objects will be created when using a plus sign?
...ther optimizations at runtime. I'm just going by what IL is produced.
Finally, as regards interning, constants and literals are interned, but the value which is interned is the resulting constant value in the IL, not the literal. This means that you might get even fewer string objects than you ex...
Create an index on a huge MySQL production table without table locking
...d or dropped. The CREATE INDEX or DROP INDEX statement only finishes after all transactions that are accessing the table are completed, so that the initial state of the index reflects the most recent contents of the table. Previously, modifying the table while an index is being created or dropped ty...