net.jqwik.engine.support

Class JqwikReflectionSupport

java.lang.Object

net.jqwik.engine.support.JqwikReflectionSupport

public class JqwikReflectionSupport
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
JqwikReflectionSupport()

Method Summary

Modifier and Type	Method and Description
static java.util.Optional<java.lang.reflect.Method>	findGeneratorMethod(java.lang.String generatorToFind, java.lang.Class<?> containerClass, java.lang.Class<? extends java.lang.annotation.Annotation> requiredGeneratorAnnotation, java.util.function.Function<java.lang.reflect.Method,java.lang.String> generatorNameSupplier, net.jqwik.api.providers.TypeUsage targetType)
static java.util.List<java.lang.reflect.Method>	findMethodsPotentiallyOuter(java.lang.Class<?> clazz, java.util.function.Predicate<java.lang.reflect.Method> predicate, org.junit.platform.commons.support.HierarchyTraversalMode traversalMode) Find all methods as in ReflectionSupport.findMethods(..) but also use outer classes to look for methods.
static java.util.Set<java.nio.file.Path>	getAllClasspathRootDirectories()
static java.util.Optional<java.lang.reflect.Method>	getFunctionMethod(java.lang.Class<?> candidateType)
static MethodParameter	getMethodParameter(java.lang.reflect.Parameter parameter, int index, java.lang.Class<?> containerClass)
static java.util.List<MethodParameter>	getMethodParameters(java.lang.reflect.Method method, java.lang.Class<?> containerClass)
static boolean	hasDefaultConstructor(java.lang.Class<?> aClass)
static java.lang.Object	invokeMethodPotentiallyOuter(java.lang.reflect.Method method, java.lang.Object target, java.lang.Object... args) Invoke the supplied method as in ReflectionSupport.invokeMethod(..) but potentially use the outer instance if the method belongs to the outer instance of an object.
static boolean	isFunctionalType(java.lang.Class<?> candidateType)
static java.util.function.Predicate<java.lang.reflect.Method>	isGeneratorMethod(net.jqwik.api.providers.TypeUsage targetType, java.lang.Class<? extends java.lang.annotation.Annotation> requiredAnnotation)
static boolean	isInnerClass(java.lang.Class<?> clazz)
static boolean	isNotStatic(java.lang.Class<?> clazz)
static boolean	isNotStatic(java.lang.reflect.Member member)
static boolean	isStatic(java.lang.Class<?> clazz)
static boolean	isStatic(java.lang.reflect.Member member)
static boolean	isToStringMethod(java.lang.reflect.Method method)
static <T> T	newInstance(java.lang.reflect.Constructor<T> constructor, java.lang.Object... args)
static <T> T	newInstanceInTestContext(java.lang.Class<T> clazz, java.lang.Object context) Create instance of a class that can potentially be a non static inner class and its outer instance might be context
static <T> T	newInstanceWithDefaultConstructor(java.lang.Class<T> clazz) Create instance of a class that can potentially be a non static inner class
static boolean	returnsVoid(java.lang.reflect.Method method)
static java.util.stream.Stream<java.lang.Object>	streamInstancesFromInside(java.lang.Object inner)

Methods inherited from class java.lang.Object

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

Constructor Detail

JqwikReflectionSupport

public JqwikReflectionSupport()

Method Detail

streamInstancesFromInside

public static java.util.stream.Stream<java.lang.Object> streamInstancesFromInside(java.lang.Object inner)

newInstanceWithDefaultConstructor

public static <T> T newInstanceWithDefaultConstructor(java.lang.Class<T> clazz)

Create instance of a class that can potentially be a non static inner class

Type Parameters:

T - The type of the instance to create

Parameters:

clazz - The class to instantiate

Returns:

the newly created instance

newInstanceInTestContext

public static <T> T newInstanceInTestContext(java.lang.Class<T> clazz,
                                             java.lang.Object context)

Create instance of a class that can potentially be a non static inner class and its outer instance might be context

Type Parameters:

T - The type of the instance to create

Parameters:

clazz - The class to instantiate

context - The potential context instance

Returns:

the newly created instance

newInstance

public static <T> T newInstance(java.lang.reflect.Constructor<T> constructor,
                                java.lang.Object... args)

findMethodsPotentiallyOuter

public static java.util.List<java.lang.reflect.Method> findMethodsPotentiallyOuter(java.lang.Class<?> clazz,
                                                                                   java.util.function.Predicate<java.lang.reflect.Method> predicate,
                                                                                   org.junit.platform.commons.support.HierarchyTraversalMode traversalMode)

Find all methods as in ReflectionSupport.findMethods(..) but also use outer classes to look for methods.

Parameters:

clazz - The class in which you start the search

predicate - The condition to check for all candidate methods

traversalMode - Traverse hierarchy up or down. Determines the order in resulting list.

Returns:

List of found methods

invokeMethodPotentiallyOuter

public static java.lang.Object invokeMethodPotentiallyOuter(java.lang.reflect.Method method,
                                                            java.lang.Object target,
                                                            java.lang.Object... args)

Invoke the supplied method as in ReflectionSupport.invokeMethod(..) but potentially use the outer instance if the method belongs to the outer instance of an object.

Parameters:

method - The method to invoke

target - The object to invoke the method on

args - The arguments of the method invocation

Returns:

Result of method invocation if there is one, otherwise null

getAllClasspathRootDirectories

public static java.util.Set<java.nio.file.Path> getAllClasspathRootDirectories()

getMethodParameters

public static java.util.List<MethodParameter> getMethodParameters(java.lang.reflect.Method method,
                                                                  java.lang.Class<?> containerClass)

getMethodParameter

public static MethodParameter getMethodParameter(java.lang.reflect.Parameter parameter,
                                                 int index,
                                                 java.lang.Class<?> containerClass)

findGeneratorMethod

public static java.util.Optional<java.lang.reflect.Method> findGeneratorMethod(java.lang.String generatorToFind,
                                                                               java.lang.Class<?> containerClass,
                                                                               java.lang.Class<? extends java.lang.annotation.Annotation> requiredGeneratorAnnotation,
                                                                               java.util.function.Function<java.lang.reflect.Method,java.lang.String> generatorNameSupplier,
                                                                               net.jqwik.api.providers.TypeUsage targetType)

isGeneratorMethod

public static java.util.function.Predicate<java.lang.reflect.Method> isGeneratorMethod(net.jqwik.api.providers.TypeUsage targetType,
                                                                                       java.lang.Class<? extends java.lang.annotation.Annotation> requiredAnnotation)

isInnerClass

public static boolean isInnerClass(java.lang.Class<?> clazz)

isFunctionalType

public static boolean isFunctionalType(java.lang.Class<?> candidateType)

getFunctionMethod

public static java.util.Optional<java.lang.reflect.Method> getFunctionMethod(java.lang.Class<?> candidateType)

isToStringMethod

public static boolean isToStringMethod(java.lang.reflect.Method method)

hasDefaultConstructor

public static boolean hasDefaultConstructor(java.lang.Class<?> aClass)

isStatic

public static boolean isStatic(java.lang.Class<?> clazz)

isNotStatic

public static boolean isNotStatic(java.lang.Class<?> clazz)

isStatic

public static boolean isStatic(java.lang.reflect.Member member)

isNotStatic

public static boolean isNotStatic(java.lang.reflect.Member member)

returnsVoid

public static boolean returnsVoid(java.lang.reflect.Method method)