Class ClassUtils

java.lang.Object

org.springframework.integration.util.ClassUtils

public abstract class ClassUtils
extends Object

Since:

2.0

Author:

Mark Fisher, Artem Bilan

Field Summary

Fields

Modifier and Type	Field	Description
static final Method	FUNCTION_APPLY_METHOD	The Function.apply(Object) method object.
static final Method	HANDLER_HANDLE_METHOD	The org.springframework.integration.core.GenericHandler#handle(Object, Map) method object.
static final @Nullable Class<?>	KOTLIN_FUNCTION_0_CLASS	The kotlin.jvm.functions.Function0 class object.
static final @Nullable Method	KOTLIN_FUNCTION_0_INVOKE_METHOD	The kotlin.jvm.functions.Function0#invoke method object.
static final @Nullable Class<?>	KOTLIN_FUNCTION_1_CLASS	The kotlin.jvm.functions.Function1 class object.
static final Method	SELECTOR_ACCEPT_METHOD	The org.springframework.integration.core.GenericSelector#accept(Object) method object.
static final Method	SUPPLIER_GET_METHOD	The Supplier.get() method object.
static final Method	TRANSFORMER_TRANSFORM_METHOD	The org.springframework.integration.core.GenericTransformer#transform(Object) method object.

Constructor Summary

Constructors

Constructor	Description
ClassUtils()

Method Summary

Modifier and Type	Method	Description
static @Nullable Class<?>	findClosestMatch(Class<?> type, Set<Class<?>> candidates, boolean failOnTie)
static boolean	isKotlinFunction0(Class<?> aClass)	Check if class is kotlin.jvm.functions.Function0.
static boolean	isKotlinFunction1(Class<?> aClass)	Check if class is kotlin.jvm.functions.Function1.
static boolean	isKotlinUnit(Class<?> aClass)	Check if class is kotlin.Unit.
static boolean	isLambda(Class<?> aClass)	Check if class is Java or Kotlin lambda.
static boolean	isLambda(Object candidate)	Check if object is Java, Kotlin or Groovy lambda.
static @Nullable Class<?>	resolvePrimitiveType(Class<?> clazz)	Resolve the given class if it is a primitive wrapper class, returning the corresponding primitive type instead.

Methods inherited from class java.lang.Object

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

Field Details

FUNCTION_APPLY_METHOD

public static final Method FUNCTION_APPLY_METHOD

The Function.apply(Object) method object.

SUPPLIER_GET_METHOD

public static final Method SUPPLIER_GET_METHOD

The Supplier.get() method object.

SELECTOR_ACCEPT_METHOD

public static final Method SELECTOR_ACCEPT_METHOD

The org.springframework.integration.core.GenericSelector#accept(Object) method object.

TRANSFORMER_TRANSFORM_METHOD

public static final Method TRANSFORMER_TRANSFORM_METHOD

The org.springframework.integration.core.GenericTransformer#transform(Object) method object.

HANDLER_HANDLE_METHOD

public static final Method HANDLER_HANDLE_METHOD

The org.springframework.integration.core.GenericHandler#handle(Object, Map) method object.

KOTLIN_FUNCTION_0_CLASS

public static final @Nullable Class<?> KOTLIN_FUNCTION_0_CLASS

The kotlin.jvm.functions.Function0 class object.

KOTLIN_FUNCTION_0_INVOKE_METHOD

public static final @Nullable Method KOTLIN_FUNCTION_0_INVOKE_METHOD

The kotlin.jvm.functions.Function0#invoke method object.

KOTLIN_FUNCTION_1_CLASS

public static final @Nullable Class<?> KOTLIN_FUNCTION_1_CLASS

The kotlin.jvm.functions.Function1 class object.

Constructor Details

ClassUtils

public ClassUtils()

Method Details

findClosestMatch

public static @Nullable Class<?> findClosestMatch(Class<?> type,
 Set<Class<?>> candidates,
 boolean failOnTie)

resolvePrimitiveType

public static @Nullable Class<?> resolvePrimitiveType(Class<?> clazz)

Resolve the given class if it is a primitive wrapper class, returning the corresponding primitive type instead.

Parameters:

clazz - the wrapper class to check

Returns:

the corresponding primitive if the clazz is a wrapper, otherwise null

isLambda

public static boolean isLambda(Object candidate)

Check if object is Java, Kotlin or Groovy lambda.

Parameters:

candidate - the Object to check.

Returns:

true if object is a Java, Kotlin or Groovy lambda.

Since:

6.2

isLambda

public static boolean isLambda(Class<?> aClass)

Check if class is Java or Kotlin lambda.

Parameters:

aClass - the Class to check.

Returns:

true if class is a Java or Kotlin lambda.

Since:

5.2

isKotlinFunction0

public static boolean isKotlinFunction0(Class<?> aClass)

Check if class is kotlin.jvm.functions.Function0.

Parameters:

aClass - the Class to check.

Returns:

true if class is a kotlin.jvm.functions.Function0 implementation.

Since:

5.5.14

isKotlinFunction1

public static boolean isKotlinFunction1(Class<?> aClass)

Check if class is kotlin.jvm.functions.Function1.

Parameters:

aClass - the Class to check.

Returns:

true if class is a kotlin.jvm.functions.Function1 implementation.

Since:

5.5.14

isKotlinUnit

public static boolean isKotlinUnit(Class<?> aClass)

Check if class is kotlin.Unit.

Parameters:

aClass - the Class to check.

Returns:

true if class is a kotlin.Unit implementation.

Since:

5.3.2