driver/io.github.octaviusframework.driver.converter/EnumResultConverter

EnumResultConverter

internal class EnumResultConverter<T : Enum<T>>(enumClass: KClass<T>, qualifiedName: QualifiedName, pgConvention: CaseConvention, kotlinConvention: CaseConvention) : ResultConverter<String, T>

Converts a PostgreSQL String representation back into a Kotlin Enum instance during result set deserialization.

Claims a value only when the column's own type is the PostgreSQL enum named by qualifiedName, so an unrelated text column carrying the same label is left to another converter.

Type Parameters

The type of the Kotlin enum.

Constructors

EnumResultConverter

constructor(enumClass: KClass<T>, qualifiedName: QualifiedName, pgConvention: CaseConvention, kotlinConvention: CaseConvention)

Properties

supportedSourceClass

open override val supportedSourceClass: KClass<String>

The decoded class this converter is indexed under. Use Any::class to be offered every value.

Functions

canConvert

open override fun canConvert(sourceClass: KClass<*>, expectedType: KType, sourceType: PgType, context: DeserializationContext): Boolean

Decides whether this converter handles the value at hand. Must return false unless convert can produce an instance of expectedType.

convert

open override fun convert(source: String, expectedType: KType, sourceType: PgType, context: DeserializationContext): T

Converts a value this converter has claimed.