public final class ReflectionUtils extends Object
ReflectionUtils - Reflection utilities holder.| Modifier and Type | Method and Description |
|---|---|
static <T> Class<T> |
getClass(String className)
Get the Java
Class with the given fully-qualified name. |
static <T> Class<T> |
getClassOrNull(String className)
|
static Method |
getDeclaredMethodOrNull(Class targetClass,
String methodName,
Class... parameterTypes)
|
static Field |
getField(Class targetClass,
String fieldName)
|
static Field |
getFieldOrNull(Class targetClass,
String fieldName)
|
static <T> T |
getFieldValue(Object target,
String fieldName)
Get the value of the field matching the given name and belonging to target
Object. |
static <T> T |
getFieldValueOrNull(Object target,
String fieldName)
|
static <T> Class<T> |
getFirstSuperClassFromPackage(Class clazz,
String packageName)
Get the first super class matching the provided package name.
|
static Set<Class> |
getGenericTypes(ParameterizedType parameterizedType)
Get the generic types of a given Class.
|
static Method |
getGetter(Object target,
String propertyName)
|
static Type |
getMemberGenericTypeOrNull(Class targetClass,
String memberName)
|
static Member |
getMemberOrNull(Class targetClass,
String memberName)
|
static Method |
getMethod(Class targetClass,
String methodName,
Class... parameterTypes)
|
static Method |
getMethod(Object target,
String methodName,
Class... parameterTypes)
|
static Method |
getMethodOrNull(Class targetClass,
String methodName,
Class... parameterTypes)
|
static Method |
getMethodOrNull(Object target,
String methodName,
Class... parameterTypes)
|
static Method |
getSetter(Object target,
String propertyName,
Class<?> parameterType)
|
static Class<?> |
getWrapperClass(Class<?> clazz)
Get the Java Wrapper
Class associated to the given primitive type. |
static boolean |
hasMethod(Class<?> targetClass,
String methodName,
Class... parameterTypes)
Check if the provided Java
Class contains a method matching
the given signature (name and parameter types). |
static <T> T |
invokeGetter(Object target,
String propertyName)
Invoke the property getter with the provided name on the given Java
Object. |
static <T> T |
invokeMethod(Object target,
Method method,
Object... parameters)
|
static <T> T |
invokeMethod(Object target,
String methodName,
Object... parameters)
Invoke the method with the provided signature (name and parameter types)
on the given Java
Object. |
static void |
invokeSetter(Object target,
String propertyName,
boolean parameter)
Invoke the
boolean property setter with the provided name
on the given Java Object. |
static void |
invokeSetter(Object target,
String propertyName,
int parameter)
Invoke the
int property setter with the provided name
on the given Java Object. |
static void |
invokeSetter(Object target,
String propertyName,
Object parameter)
Invoke the property setter with the provided signature (name and parameter types)
on the given Java
Object. |
static <T> T |
invokeStaticMethod(Method method,
Object... parameters)
Invoke the
static Method with the provided parameters. |
static <T> T |
newInstance(Class clazz)
Instantiate a new
Object of the provided type. |
static <T> T |
newInstance(Class clazz,
Object[] args,
Class[] argsTypes)
Instantiate a new
Object of the provided type. |
static <T> T |
newInstance(String className)
Instantiate a new
Object of the provided type. |
static void |
setFieldValue(Object target,
String fieldName,
Object value)
Set the value of the field matching the given name and belonging to target
Object. |
public static <T> T newInstance(String className)
Object of the provided type.public static <T> T newInstance(Class clazz)
Object of the provided type.public static <T> T newInstance(Class clazz, Object[] args, Class[] argsTypes)
Object of the provided type.public static <T> T getFieldValue(Object target, String fieldName)
Object.T - field typetarget - target Object whose field we are retrieving the value fromfieldName - field namepublic static <T> T getFieldValueOrNull(Object target, String fieldName)
Object or null
if no Field was found..T - field typetarget - target Object whose field we are retrieving the value fromfieldName - field namenullpublic static void setFieldValue(Object target, String fieldName, Object value)
Object.target - target objectfieldName - field namevalue - field valuepublic static Method getMethodOrNull(Object target, String methodName, Class... parameterTypes)
public static Method getMethod(Class targetClass, String methodName, Class... parameterTypes)
public static Method getMethodOrNull(Class targetClass, String methodName, Class... parameterTypes)
public static Method getDeclaredMethodOrNull(Class targetClass, String methodName, Class... parameterTypes)
public static boolean hasMethod(Class<?> targetClass, String methodName, Class... parameterTypes)
Class contains a method matching
the given signature (name and parameter types).public static Method getSetter(Object target, String propertyName, Class<?> parameterType)
public static <T> T invokeMethod(Object target, String methodName, Object... parameters)
Object.T - return value object typetarget - target Object whose method we are invokingmethodName - method name to invokeparameters - parameters passed to the method callpublic static <T> T invokeGetter(Object target, String propertyName)
Object.T - return value object typetarget - target Object whose property getter we are invokingpropertyName - property name whose getter we are invokingpublic static void invokeSetter(Object target, String propertyName, Object parameter)
Object.target - target Object whose property setter we are invokingpropertyName - property name whose setter we are invokingparameter - parameter passed to the setter callpublic static void invokeSetter(Object target, String propertyName, boolean parameter)
boolean property setter with the provided name
on the given Java Object.target - target Object whose property setter we are invokingpropertyName - property name whose setter we are invokingparameter - boolean parameter passed to the setter callpublic static void invokeSetter(Object target, String propertyName, int parameter)
int property setter with the provided name
on the given Java Object.target - target Object whose property setter we are invokingpropertyName - property name whose setter we are invokingparameter - int parameter passed to the setter callpublic static <T> T invokeStaticMethod(Method method, Object... parameters)
static Method with the provided parameters.T - return value object typemethod - target static Method to invokeparameters - parameters passed to the method callpublic static <T> Class<T> getClass(String className)
Class with the given fully-qualified name.public static Class<?> getWrapperClass(Class<?> clazz)
Class associated to the given primitive type.clazz - primitive classClasspublic static <T> Class<T> getFirstSuperClassFromPackage(Class clazz, String packageName)
T - class generic typeclazz - Java classpackageName - package namenull.public static Set<Class> getGenericTypes(ParameterizedType parameterizedType)
parameterizedType - parameterized TypeCopyright © 2021. All rights reserved.