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Spring DAO vs Spring ORM vs Spring JDBC
...er that this has limited usage for the following reasons:
Your should usually not catch persistence exceptions, as the provider may have rolled back the transaction (depending on the exact exception subtype), and thus you should not continue the execution with an alternative path.
The hierarchy of...
Android: How can I validate EditText input?
...ooks like exactly what I need. Hadn't heard of TextWatcher (new to the SDK/API), but I'll test it out and see if it behaves the way I think it will. Thanks for the info!
– Stefan
May 18 '10 at 12:30
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http HEAD vs GET performance
... would focus on designing the ideal REST interface. A clean REST API is usually more valuable in the long run than a kludgey API that may or may not be faster. I'm not discouraging the use of HEAD, just suggesting that you only use it if it's the "right" design.
If the information you need really i...
How to test Spring Data repositories?
...epositories reasonably for a simple reason: it's way to cumbersome to mock all the parts of the JPA API we invoke to bootstrap the repositories. Unit tests don't make too much sense here anyway, as you're usually not writing any implementation code yourself (see the below paragraph on custom impleme...
FirstOrDefault: Default value other than null
...FirstOrDefault().IfDefaultGiveMe(otherDefaultValue);
Again, this can't really tell if there was anything in your sequence, or if the first value was the default.
If you care about this, you could do something like
static class ExtensionsThatWillAppearOnIEnumerables
{
public static T FirstOr&...
Making TextView scrollable on Android
...
You don't need to use a ScrollView actually.
Just set the
android:scrollbars = "vertical"
properties of your TextView in your layout's xml file.
Then use:
yourTextView.setMovementMethod(new ScrollingMovementMethod());
in your code.
Bingo, it scrolls!
...
What's the difference between a word and byte?
I've done some research.
A byte is 8 bits and a word is the smallest unit that can be addressed on memory. The exact length of a word varies. What I don't understand is what's the point of having a byte? Why not say 8 bits?
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Setting background colour of Android layout element
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You can use simple color resources, specified usually inside res/values/colors.xml.
<color name="red">#ffff0000</color>
and use this via android:background="@color/red". This color can be used anywhere else too, e.g. as a text color. Reference it in XML the s...
What is the difference between service, directive and module?
...been reading a lot of docs, and I'm getting more and more confused.
I basically can't figure out the difference between a
...
public static const in TypeScript
...n the run time (unlike in the first example, where the change would not be allowed at all as demonstrated).
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