The JEP states this: Restrictions on records Records cannot extend any other class, and cannot declare instance fields other than the private final fields which correspond to components of the state description. Any other fields which are declared must be static. These restrictions ensure that the state description alone defines the representation. The Java 17 … Read more
1718449215 is the decimal representation of the four character code for the kAudioFormatUnsupportedDataFormatError error. In general you can use something like this to get more information from the errors you receive: NSError *error = [NSError errorWithDomain:NSOSStatusErrorDomain code:my_error_code userInfo:nil]; NSLog(@”Error: %@”, [error description]);
I think that a simple way to do this would be using Soundflower and Soundflowerbed. I can’t see how to make the USB mics inputs to Soundflower and then pipe them into a Java. It sounds like you have Soundflower installed already. Soundflowerbed is found in the same disk image as Soundflower and is a … Read more
Per the C#9 record proposal, the following should compile, even if not very useful without actual implementations.. // No explicit IEquatable<R> – this is synthesized! public sealed record SimpleVo { // Not virtual, as SimpleVo (R) is sealed. // Accepts SimpleVo? (R?), and not SimpleVo (R), as argument. public bool Equals(SimpleVo? other) => throw new … Read more
You can use record patterns like this: data X = A | B {name :: String} | C {x::Int, y::Int, name::String} myfn :: X -> Int myfn A = 50 myfn B{} = 200 myfn C{} = 500 Record patterns allow you to give names to the fields of the constructors. you can also do … Read more
But what about cloning? var r4 = r with { }; performs a shallow clone on r. The clone method is public according to the specification above. But what is its name? The C# compiler has a fairly common trick where it gives generated members names which are illegal in C#, but legal in IL, … Read more
Encapsulate the query in a sub-query to transform “no row” to a null value. I tested and verified this with PostgreSQL, SQLite, SQL Server, and MySQL. SELECT (SELECT id FROM tbl WHERE id = 9823474) AS id; In Oracle you have to select from the dummy 1-row table DUAL: SELECT (SELECT id FROM tbl WHERE … Read more
you are implementing your validation logic incorrectly. The correct way to validate a Record field is to override def validations: List[ValidationFunction] where ValidationFunction is a type alias type ValidationFunction = ValueType => List[FieldError] and in your case ValueType == String. The next issue is your Domain trait. Because your call to validate is inlined into … Read more
Answer coming from : http://grokbase.com/t/gg/rogue-users/1367nscf80/how-to-update-a-record-with-mongocaseclassfield-when-case-class-contains-a-scala-enumeration#20130612woc3x7utvaoacu7tv7lzn4sr2q But more convenient directly here on StackOverFlow: Sorry, I should have chimed in here sooner. One of the long-standing problems with Rogue was that it was too easy to accidentally make a field that was not serializable as BSON, and have it fail at runtime (when you try to add … Read more