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JPA EntityManager: Why use persist() over merge()?
... }
// Set 3 to value
attachedEntity.setValue(3);
// Really, now both are the same object. Prints 3
System.out.println(newEntity.getValue());
// Modify the un attached object has no effect to the entity manager
// nor to the other objects
nonAttachedEntity.setValue(42)...
Namespace for [DataContract]
... reference to project.
On .Net Tab, Search System.Runtime.Serialization.
Now, you can use using System.Runtime.Serialization. And the error will not be shown.
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How do I change the color of radio buttons?
...
I believe so. No browser that I know of presents a way to configure the look of radio buttons, you will have to use a JS library to accomplish this.
– Fred
Aug 6 '14 at 6:21
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Restart/undo conflict resolution in a single file
...instead of the two merge points being named "head" and {REVISION}, they're now called "ours" and "theirs".
– TGP1994
Jun 13 '16 at 20:26
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Best way to define private methods for a class in Objective-C
...follow (and have seen elsewhere, I think it's an Apple convention as Xcode now gives automatic support for it) is to name such a file after its class and category with a + separating them, so @interface GLObject (PrivateMethods) can be found in GLObject+PrivateMethods.h. The reason for providing the...
Can I change the name of `nohup.out`?
...$ nohup something&
$ mv nohup.out nohup2.out
$ nohup something2&
Now something adds lines to nohup2.out and something2 to nohup.out.
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Easy idiomatic way to define Ordering for a simple case class
...d: Int) extends Ordered[A] {
// Required as of Scala 2.11 for reasons unknown - the companion to Ordered
// should already be in implicit scope
import scala.math.Ordered.orderingToOrdered
def compare(that: A): Int = (this.tag, this.load) compare (that.tag, that.load)
}
This works because ...
sql primary key and index
...ate your own alternate index on that column, then drop the default index.
Now for the fun part--when do you NOT want a unique primary key index? You don't want one, and can't tolerate one, when your table acquires enough data (rows) to make the maintenance of the index too expensive. This varies ...
How do I target only Internet Explorer 10 for certain situations like Internet Explorer-specific CSS
...ng a repaint, again IE5/6/7-level stuff
A few strains of WebKit have been known to outright lie about support for certain features, meaning they actually defeat feature detection mechanisms, of all things
If you do have a legitimate reason to be targeting certain browsers, by all means sniff them ...
Git rebase: conflicts keep blocking progress
... just skip the commit and the rebase succeed.
$ git rebase --skip
HEAD is now at 7313eb3 master
Word of caution: Please note that git rebase --skip will completely drop the commit that git tried to rebase. In our case, this should be okay since git is complaining this is an empty commit. If you...