@NotNull
public Instantiator<?> findInstantiator(@NotNull Type type, @NotNull NamedTypeList types) {
// First check if we have an immediate conversion registered. If so, we'll just use that.
if (types.size() == 1) {
TypeConversion conversion = findConversionFromDbValue(types.getType(0), type).orElse(null);
if (conversion != null) return args -> conversion.convert(args.getSingleValue());
}
Class<?> cl = rawType(type);
Instantiator<?> instantiator = findExplicitInstantiatorFor(cl, types).orElse(null);
if (instantiator != null) return instantiator;
if (!isPublic(cl.getModifiers()))
throw new InstantiationFailureException(
type
+ " can't be instantiated reflectively because it is not public or missing a @DalesbredConstructor-annotation");
return candidateConstructorsSortedByDescendingParameterCount(cl)
.map(ctor -> implicitInstantiatorFrom(ctor, types).orElse(null))
.filter(Objects::nonNull)
.findFirst()
.orElseThrow(
() ->
new InstantiationFailureException(
"could not find a way to instantiate " + type + " with parameters " + types));
}
@Nullable
public Object valueToDatabase(@Nullable Object value) {
if (value == null) return null;
TypeConversion conversion =
typeConversionRegistry.findConversionToDb(value.getClass()).orElse(null);
if (conversion != null) return conversion.convert(value);
else if (value instanceof Enum<?>) return dialect.valueToDatabase(((Enum<?>) value).name());
else return dialect.valueToDatabase(value);
}