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Change private static final field using Java reflection
...{
static void setFinalStatic(Field field, Object newValue) throws Exception {
field.setAccessible(true);
Field modifiersField = Field.class.getDeclaredField("modifiers");
modifiersField.setAccessible(true);
modifiersField.setInt(field, field.getModifiers() & ~Modifier...
Physical vs. logical / soft delete of database record?
...a bunch of coders working on the project, doing reads on the database with mixed skill and attention to detail levels, you don't have to stay up nights hoping that one of them didn’t forget to not include deleted records (lol, Not Include Deleted Records = True), which results in things like overs...
How to multiply duration by integer?
...ation is a sensible NO-OP -- required only to satisfy language rules about mixing types, and it has no effect on the subsequent multiplication operation.
If you don't like the the casting for reasons of purity, bury it in a function call as I have shown above.
...
How to log request and response body with Retrofit-Android?
...n Retrofit 2
Retrofit 2 completely relies on OkHttp for any network operation. Since OkHttp is a peer dependency of Retrofit 2, you won’t need to add an additional dependency once Retrofit 2 is released as a stable release.
OkHttp 2.6.0 ships with a logging interceptor as an internal dependency ...
How do you effectively model inheritance in a database?
... the type of the child class (similar to the rowType field in the TPH), so mixing the TPT and TPH somehow.
Say we want to design a database that holds the following shape class diagram:
public class Shape {
int id;
Color color;
Thickness thickness;
//other fields
}
public class Rectangle : Shape...
XML schema or DTD for logback.xml?
I've seen several discussions on the net about how great it would be to have an XML schema or DTD for logback.xml file to have at least the very basic validation and auto-completion in IDEs like IDEA or Eclipse, but I never saw any solution.
...
How do I fix the Visual Studio compile error, “mismatch between processor architecture”?
...of sense for C# DLLs, they do work either way. But sure, not your C++/CLI mixed mode DLL, it contains unmanaged code that can only work well when the process runs in 32-bit mode. You can get the build system to generate warnings about that. Which is exactly what you got. Just warnings, it still ...
What is the difference between == and equals() in Java?
...id if you are talking about "static" or "non-static" members; you can also mix all the above...
Here is an example (you can run it):
public final class MyEqualityTest
{
public static void main( String args[] )
{
String s1 = new String( "Test" );
String s2 = new String( "Tes...
Show or hide element in React
...act circa 2020
In the onClick callback, call the state hook's setter function to update the state and re-render:
const Search = () => {
const [showResults, setShowResults] = React.useState(false)
const onClick = () => setShowResults(true)
return (
<div>
<inp...
How can prepared statements protect from SQL injection attacks?
...r separately.
That's all.
The root of the SQL injection problem is in the mixing of the code and the data.
In fact, our SQL query is a legitimate program.
And we are creating such a program dynamically, adding some data on the fly. Thus, the data may interfere with the program code and even al...