Package cn.boboweike.carrot.utils.reflection

Class ReflectionUtils

java.lang.Object

cn.boboweike.carrot.utils.reflection.ReflectionUtils

public class ReflectionUtils
extends Object

Method Summary

Modifier and Type	Method	Description
static <T> T	autobox(Object value, Class<T> type)
static <T> T	cast(Object anObject)	Why: less warnings and @SuppressWarnings("unchecked")
static boolean	classExists(String className)
static Optional<Field>	findField(Class<?> clazz, String fieldName)
static Optional<Field>	findField(Class<?> clazz, Predicate<Field> predicate)
static Optional<Method>	findMethod(Class<?> clazz, String methodName, Class<?>... parameterTypes)
static Optional<Method>	findMethod(Object object, String methodName, Class<?>... parameterTypes)
static Field	getField(Class<?> clazz, String fieldName)
static Method	getMethod(Class<?> clazz, String methodName, Class<?>... parameterTypes)
static Object	getValueFromField(Field field, Object object)
static Object	getValueFromFieldOrProperty(Object object, String paramName)
static Object	getValueFromGetMethod(Method getter, Object object)
static boolean	hasDefaultNoArgConstructor(Class<?> clazz)
static boolean	hasDefaultNoArgConstructor(String clazzName)
static boolean	isClassAssignable(Class<?> clazz1, Class<?> clazz2)
static boolean	isClassAssignableToObject(Class<?> clazz, Object object)
static Class<?>	loadClass(String className)
static void	makeAccessible(AccessibleObject accessibleObject)
static <T> T	newInstance(Class<T> clazz)
static <T> T	newInstance(Class<T> clazz, Object... params)
static <T> T	newInstance(String className, Object... params)
static <T> T	newInstanceAndSetFieldValues(Class<T> clazz, Map<String,String> fieldValues)
static <T> T	newInstanceCE(Class<T> clazz, Object... params)
static boolean	objectContainsFieldOrProperty(Object object, String fieldName)
static void	setFieldUsingAutoboxing(Field field, Object object, Object value)
static void	setFieldUsingAutoboxing(String fieldName, Object object, Object value)
static <T> Class<T>	toClass(String className)
static <T> Class<T>	toClassFromPath(Path path)
static String	toClassNameFromFileName(String classFile)

Methods inherited from class java.lang.Object

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

Method Detail

classExists

public static boolean classExists(String className)

toClassFromPath

public static <T> Class<T> toClassFromPath(Path path)

toClassNameFromFileName

public static String toClassNameFromFileName(String classFile)

toClass

public static <T> Class<T> toClass(String className)

loadClass

public static Class<?> loadClass(String className)
                          throws ClassNotFoundException

Throws:

ClassNotFoundException

hasDefaultNoArgConstructor

public static boolean hasDefaultNoArgConstructor(String clazzName)

hasDefaultNoArgConstructor

public static boolean hasDefaultNoArgConstructor(Class<?> clazz)

newInstanceAndSetFieldValues

public static <T> T newInstanceAndSetFieldValues(Class<T> clazz,
                                                 Map<String,String> fieldValues)

newInstance

public static <T> T newInstance(String className,
                                Object... params)

newInstance

public static <T> T newInstance(Class<T> clazz,
                                Object... params)

newInstanceCE

public static <T> T newInstanceCE(Class<T> clazz,
                                  Object... params)
                           throws ReflectiveOperationException

Throws:

ReflectiveOperationException

newInstance

public static <T> T newInstance(Class<T> clazz)

getMethod

public static Method getMethod(Class<?> clazz,
                               String methodName,
                               Class<?>... parameterTypes)

findMethod

public static Optional<Method> findMethod(Object object,
                                          String methodName,
                                          Class<?>... parameterTypes)

findMethod

public static Optional<Method> findMethod(Class<?> clazz,
                                          String methodName,
                                          Class<?>... parameterTypes)

getField

public static Field getField(Class<?> clazz,
                             String fieldName)

findField

public static Optional<Field> findField(Class<?> clazz,
                                        String fieldName)

findField

public static Optional<Field> findField(Class<?> clazz,
                                        Predicate<Field> predicate)

isClassAssignableToObject

public static boolean isClassAssignableToObject(Class<?> clazz,
                                                Object object)

isClassAssignable

public static boolean isClassAssignable(Class<?> clazz1,
                                        Class<?> clazz2)

objectContainsFieldOrProperty

public static boolean objectContainsFieldOrProperty(Object object,
                                                    String fieldName)

getValueFromFieldOrProperty

public static Object getValueFromFieldOrProperty(Object object,
                                                 String paramName)

getValueFromField

public static Object getValueFromField(Field field,
                                       Object object)

getValueFromGetMethod

public static Object getValueFromGetMethod(Method getter,
                                           Object object)

setFieldUsingAutoboxing

public static void setFieldUsingAutoboxing(String fieldName,
                                           Object object,
                                           Object value)

setFieldUsingAutoboxing

public static void setFieldUsingAutoboxing(Field field,
                                           Object object,
                                           Object value)

autobox

public static <T> T autobox(Object value,
                            Class<T> type)

makeAccessible

public static void makeAccessible(AccessibleObject accessibleObject)

cast

public static <T> T cast(Object anObject)

Why: less warnings and @SuppressWarnings("unchecked")

Type Parameters:

T - target type to cast

Parameters:

anObject - an Object

Returns:

an instance of T type