Package dev.voidframework.core.utils

Class ReflectionUtils

java.lang.Object

dev.voidframework.core.utils.ReflectionUtils

public final class ReflectionUtils
extends Object

Reflection-based utility methods.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	ReflectionUtils.WrappedClass<T>	Allows to wrap a complex class type (ie: Map{String, Integer})

Method Summary

Modifier and Type	Method	Description
static void	callMethod(Object classInstance, String methodeName, Class<?>[] argumentTypeArray, Object... argumentArray)	Calls a method.
static <T> T	callMethod(Object classInstance, String methodeName, Class<T> returnTypeClass, Class<?>[] argumentTypeArray, Object... argumentArray)	Calls a method.
static Field	getAnnotatedField(Class<?> classType, Class<? extends Annotation> annotationClassType)	Retrieves a specific annotated field.
static Field	getAnnotatedField(Object classInstance, Class<? extends Annotation> annotationClassType)	Retrieves a specific annotated field.
static <T> T	getFieldValue(Object classInstance, String fieldName, ReflectionUtils.WrappedClass<T> wrappedClass)	Retrieves the value of a specific field.
static <T> T	getFieldValue(Object classInstance, String fieldName, Class<T> valueTypeClass)	Retrieves the value of a specific field.
static Method	resolveMethod(String methodName, Class<?> classType)	Resolves a methode from it name.
static void	setFieldValue(Object classInstance, String fieldName, Object value)	Sets the value of a specific field.

Methods inherited from class java.lang.Object

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

Method Details

getAnnotatedField

public static Field getAnnotatedField(Object classInstance,
 Class<? extends Annotation> annotationClassType)

Retrieves a specific annotated field.

Parameters:

classInstance - The instance of the class in which the field is located

annotationClassType - The annotation

Returns:

The field, otherwise, null

getAnnotatedField

public static Field getAnnotatedField(Class<?> classType,
 Class<? extends Annotation> annotationClassType)

Retrieves a specific annotated field.

Parameters:

classType - The class type in which the field is located

annotationClassType - The annotation

Returns:

The field, otherwise, null

getFieldValue

public static <T> T getFieldValue(Object classInstance,
 String fieldName,
 Class<T> valueTypeClass)

Retrieves the value of a specific field.

Type Parameters:

T - The value type

Parameters:

classInstance - The instance of the class in which the field is located

fieldName - The field name

valueTypeClass - The value class type

Returns:

The field value, otherwise, null

getFieldValue

public static <T> T getFieldValue(Object classInstance,
 String fieldName,
 ReflectionUtils.WrappedClass<T> wrappedClass)

Retrieves the value of a specific field.

Type Parameters:

T - The value type

Parameters:

classInstance - The instance of the class in which the field is located

fieldName - The field name

wrappedClass - The value class type (wrapped)

Returns:

The field value, otherwise, null

setFieldValue

public static void setFieldValue(Object classInstance,
 String fieldName,
 Object value)

Sets the value of a specific field.

Parameters:

classInstance - The instance of the class in which the field is located

fieldName - The field name

value - The value

resolveMethod

public static Method resolveMethod(String methodName,
 Class<?> classType)

Resolves a methode from it name.

Parameters:

methodName - The method name

classType - The class where are located this method

Returns:

The method

callMethod

public static <T> T callMethod(Object classInstance,
 String methodeName,
 Class<T> returnTypeClass,
 Class<?>[] argumentTypeArray,
 Object... argumentArray)

Calls a method.

Type Parameters:

T - Type of the return value

Parameters:

classInstance - The instance of the class in which the method is located

methodeName - The method name

returnTypeClass - The returned value type

argumentTypeArray - The method argument types

argumentArray - The method arguments

Returns:

The method call result

callMethod

public static void callMethod(Object classInstance,
 String methodeName,
 Class<?>[] argumentTypeArray,
 Object... argumentArray)

Calls a method.

Parameters:

classInstance - The instance of the class in which the method is located

methodeName - The method name

argumentTypeArray - The method argument types

argumentArray - The method arguments