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 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 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(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(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 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 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.Copyright © 2020. All rights reserved.