Package org.springframework.data.util

Class KotlinReflectionUtils

java.lang.Object

org.springframework.data.util.KotlinReflectionUtils

public final class KotlinReflectionUtils
extends Object

Reflection utility methods specific to Kotlin reflection. Requires Kotlin classes to be present to avoid linkage errors.

Since:

2.3

Author:

Mark Paluch, Christoph Strobl, Johannes Englmeier

See Also:

• KotlinDetector.isKotlinReflectPresent()

Method Summary

Modifier and Type	Method	Description
static kotlin.reflect.KFunction<?>	findKotlinFunction(Method method)	Returns a KFunction instance corresponding to the given Java Method instance, or null if this method cannot be represented by a Kotlin function.
static Class<?>	getReturnType(Method method)	Returns the return type of a Kotlin Method.
static boolean	isDataClass(Class<?> type)	Return true if the specified class is a Kotlin data class.
static boolean	isSupportedKotlinClass(Class<?> type)	Return true if the specified class is a supported Kotlin class.
static boolean	isSuspend(Method method)	Returns whether the Method is declared as suspend (Kotlin Coroutine).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

isSupportedKotlinClass

public static boolean isSupportedKotlinClass(Class<?> type)

Return true if the specified class is a supported Kotlin class. Currently supported are only regular Kotlin classes. Other class types (synthetic, SAM, lambdas) are not supported via reflection.

Returns:

true if type is a supported Kotlin class.

isDataClass

public static boolean isDataClass(Class<?> type)

Return true if the specified class is a Kotlin data class.

Returns:

true if type is a Kotlin data class.

Since:

2.5.1

findKotlinFunction

@Nullable
public static kotlin.reflect.KFunction<?> findKotlinFunction(Method method)

Returns a KFunction instance corresponding to the given Java Method instance, or null if this method cannot be represented by a Kotlin function.

Parameters:

method - the method to look up.

Returns:

the KFunction or null if the method cannot be looked up.

isSuspend

public static boolean isSuspend(Method method)

Returns whether the Method is declared as suspend (Kotlin Coroutine).

Parameters:

method - the method to inspect.

Returns:

true if the method is declared as suspend.

See Also:

• KFunction.isSuspend()

getReturnType

public static Class<?> getReturnType(Method method)

Returns the return type of a Kotlin Method. Supports regular and suspended methods.

Parameters:

method - the method to inspect, typically any synthetic JVM Method.

Returns:

return type of the method.