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Avoid the need to specify Supplier in Kotlin bean registration API

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Based on an idea from Mario Arias, we can avoid requiring specifying
explicitly Supplier lambda type in Kotlin API by declaring the supplier
parameter as "crossinline supplier: () -> T" instead of
"supplier: Supplier<T>".

Issue: SPR-15118
This commit is contained in:
Sebastien Deleuze
2017-01-09 20:13:23 +01:00
parent b503e4679c
commit 715274e327
2 changed files with 7 additions and 8 deletions
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10
spring-context/src/main/kotlin/org/springframework/context/support/GenericApplicationContextExtension.kt
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@@ -33,16 +33,16 @@ object GenericApplicationContextExtension {
/**
* @see GenericApplicationContext.registerBean(Class<T>, Supplier<T>, BeanDefinitionCustomizer...)
*/
inline fun <reified T : Any> GenericApplicationContext.registerBean(supplier: Supplier<T>,
vararg customizers: BeanDefinitionCustomizer) {
registerBean(T::class.java, supplier, *customizers)
inline fun <reified T : Any> GenericApplicationContext.registerBean(
crossinline supplier: () -> T, vararg customizers: BeanDefinitionCustomizer) {
registerBean(T::class.java, Supplier { supplier.invoke() }, *customizers)
}
/**
* @see GenericApplicationContext.registerBean(String, Class<T>, Supplier<T>, BeanDefinitionCustomizer...)
*/
inline fun <reified T : Any> GenericApplicationContext.registerBean(name: String,
supplier: Supplier<T>, vararg customizers: BeanDefinitionCustomizer) {
registerBean(name, T::class.java, supplier, *customizers)
crossinline supplier: () -> T, vararg customizers: BeanDefinitionCustomizer) {
registerBean(name, T::class.java, Supplier { supplier.invoke() }, *customizers)
}
}