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Setting default values for columns in JPA
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Actually it is possible in JPA, although a little bit of a hack using the columnDefinition property of the @Column annotation, for example:
@Column(name="Price", columnDefinition="Decimal(10,2) default '100.00'")
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How can I convert string to datetime with format specification in JavaScript?
...lease update the link. This doesn't help anymore.
– Tallerlei
Mar 24 at 8:43
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show 1 more comment
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How to detect idle time in JavaScript elegantly?
...ng a semicolon after the $(document).ready(function() body. Also, in the call to setInterval, it won't work with quotes around the function name and you don't need the parentheses after it. Just: setInterval(timerIncrement, 60000)
– Jesse Roper
Apr 5 '13 at ...
How to configure XAMPP to send mail from localhost?
...mail\sendmail.exe\" -t"
Now Open C:\xampp\sendmail\sendmail.ini. Replace all the existing code in sendmail.ini with following code
[sendmail]
smtp_server=smtp.gmail.com
smtp_port=587
error_logfile=error.log
debug_logfile=debug.log
auth_username=my-gmail-id@gmail.com
auth_password=my-gmail-passwo...
Take screenshots in the iOS simulator
... a screen shot. Or
Using Mac Keyboad: Press keys ⌥ Option + ⌘ + s all together.
It will show to a dialog with file storage options and also allows to set/change default path.
Tip 3: How to take a screen shot with Device Bezel?
Enable Show Device Bezel from Window menu.
Here is an op...
(413) Request Entity Too Large | uploadReadAheadSize
...cture.
As long as the file size of this picture is less then approx. 48KB, all goes well. But if I'm trying to upload a larger picture, the WCF service returns an error: (413) Request Entity Too Large.
So ofcourse I've spent 3 hours Googling the error message and every topic I've seen about this s...
Why use a ReentrantLock if one can use synchronized(this)?
...time-out. ReentrantLock also has support for configurable fairness policy, allowing more flexible thread scheduling.
The constructor for this class accepts an optional fairness parameter. When set true, under contention, locks favor granting access to the longest-waiting thread. Otherwise this lock...
Check if a key exists inside a json object
...ld, it will shadow the original func. Use Object.prototype.hasOwnProperty.call(thisSession, 'merchant_id')
– Zmey
Dec 25 '19 at 17:38
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What is the rationale behind having companion objects in Scala?
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The companion object basically provides a place where one can put "static-like" methods. Furthermore, a companion object, or companion module, has full access to the class members, including private ones.
Companion objects are great for encapsulating...
C++ equivalent of Java's toString?
...n case your operator<< wants to print out internals of class A and really needs access to its private and protected members you could also declare it as a friend function:
class A {
private:
friend std::ostream& operator<<(std::ostream&, const A&);
int j;
};
std::ostrea...