Package org.assertj.core.util.introspection

Class ClassUtils

java.lang.Object

org.assertj.core.util.introspection.ClassUtils

public class ClassUtils
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
private static final List<Class<?>>	OPTIONAL_TYPES
private static final List<Class<?>>	PRIMITIVE_WRAPPER_TYPES	Lists primitive wrapper Classes.

Constructor Summary

Constructors

Constructor	Description
ClassUtils()

Method Summary

Modifier and Type	Method	Description
static List<Class<?>>	getAllInterfaces(Class<?> cls)	Gets a List of all interfaces implemented by the given class and its superclasses.
(package private) static void	getAllInterfaces(Class<?> cls, HashSet<Class<?>> interfacesFound)	Get the interfaces for the specified class.
static List<Class<?>>	getAllSuperclasses(Class<?> cls)	Gets a List of superclasses for the given class.
static boolean	isOptionalOrPrimitiveOptional(Class<?> type)	Returns whether the given type is a primitive or primitive wrapper (Optional, OptionalInt, OptionalLong, OptionalDouble).
static boolean	isPrimitiveOrWrapper(Class<?> type)	Returns whether the given type is a primitive or primitive wrapper (Boolean, Byte, Character, Short, Integer, Long, Double, Float, Void).

Methods inherited from class java.lang.Object

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

Field Details

PRIMITIVE_WRAPPER_TYPES

private static final List<Class<?>> PRIMITIVE_WRAPPER_TYPES

Lists primitive wrapper Classes.

OPTIONAL_TYPES

private static final List<Class<?>> OPTIONAL_TYPES

Constructor Details

ClassUtils

public ClassUtils()

Method Details

getAllSuperclasses

public static List<Class<?>> getAllSuperclasses(Class<?> cls)

Gets a List of superclasses for the given class.

Parameters:

cls - the class to look up, may be null

Returns:

the List of superclasses in order going up from this one null if null input

getAllInterfaces

public static List<Class<?>> getAllInterfaces(Class<?> cls)

Gets a List of all interfaces implemented by the given class and its superclasses.

The order is determined by looking through each interface in turn as declared in the source file and following its hierarchy up. Then each superclass is considered in the same way. Later duplicates are ignored, so the order is maintained.

Parameters:

cls - the class to look up, may be null

Returns:

the List of interfaces in order, null if null input

getAllInterfaces

static void getAllInterfaces(Class<?> cls,
 HashSet<Class<?>> interfacesFound)

Get the interfaces for the specified class.

Parameters:

cls - the class to look up, may be null

interfacesFound - the Set of interfaces for the class

isPrimitiveOrWrapper

public static boolean isPrimitiveOrWrapper(Class<?> type)

Returns whether the given type is a primitive or primitive wrapper (Boolean, Byte, Character, Short, Integer, Long, Double, Float, Void).

Returns false if passed null since the method can't evaluate the class.

Inspired from apache commons-lang ClassUtils

Parameters:

type - The class to query or null.

Returns:

true if the given type is a primitive or primitive wrapper (Boolean, Byte, Character, Short, Integer, Long, Double, Float, Void).

Since:

3.24.0

isOptionalOrPrimitiveOptional

public static boolean isOptionalOrPrimitiveOptional(Class<?> type)

Returns whether the given type is a primitive or primitive wrapper (Optional, OptionalInt, OptionalLong, OptionalDouble).

Returns false if passed null since the method can't evaluate the class.

Parameters:

type - The class to query or null.

Returns:

true if the given type is a primitive or primitive wrapper (Optional, OptionalInt, OptionalLong, OptionalDouble).

Since:

3.24.0