org.dromara.streamquery.stream.core.reflect

类 ReflectHelper

java.lang.Object

org.dromara.streamquery.stream.core.reflect.ReflectHelper

public class ReflectHelper
extends Object

反射工具类

作者:

VampireAchao Cizai_

从以下版本开始:

2022/6/2 17:02

字段概要

字段

限定符和类型	字段和说明
static String	L Constant L="L"
static String	LEFT_MIDDLE_BRACKET Constant LEFT_MIDDLE_BRACKET="["
static String	SEMICOLON Constant SEMICOLON=";"
static String	V Constant V="V"

方法概要

限定符和类型	方法和说明
static <$ACCESSIBLE_OBJECT extends AccessibleObject> $ACCESSIBLE_OBJECT	accessible($ACCESSIBLE_OBJECT accessibleObject) return accessible accessibleObject
static void	explain(Object obj) explain.
static Class<?>	forClassName(String className) forClassName.
static Type[]	getArgsFromDescriptor(String methodDescriptor) getArgsFromDescriptor.
static <T> Constructor<T>	getConstructorByDescriptor(Class<?> clazz, String methodDescriptor) getConstructorByDescriptor.
static String	getDescriptor(Class<?> clazz) get descriptor of class
static String	getDescriptor(Executable executable) return descriptor of executable
static Field	getField(Class<?> clazz, String fieldName) getField.
static List<Field>	getFields(Class<?> clazz) getFields.
static <T> T	getFieldValue(Object obj, String fieldName) getFieldValue.
static Map<String,Type>	getGenericMap(Type paramType)
static Type[]	getGenericTypes(Type paramType) getGenericTypes.
static String	getInternalName(Class<?> clazz) get internal name
static Method	getMethod(Class<?> clazz, String methodName, Class<?>... parameterTypes) getMethod.
static Method	getMethodByDescriptor(String methodName, Class<?> clazz, String methodDescriptor) getMethodByDescriptor.
static List<Method>	getMethods(Class<?> clazz) Returns all declared methods of a class including methods of superclasses.
static Type	getReturnTypeFromDescriptor(String methodDescriptor) getReturnTypeFromDescriptor.
static boolean	hasField(Class<?> clazz, String fieldName) hasField.
static <R> R	invoke(Object obj, Method method, Object... args) invoke.
static <T> boolean	isInstance(T obj, Type t) isInstance.
static Class<?>	loadClass(String className) loadClass.
static <T> void	setFieldValue(T bean, String keyProperty, Object fieldValue) setFieldValue.
static boolean	typeOf(Object obj, Type eType) typeOf.

从类继承的方法 java.lang.Object

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

字段详细资料

LEFT_MIDDLE_BRACKET

public static final String LEFT_MIDDLE_BRACKET

Constant LEFT_MIDDLE_BRACKET="["

另请参阅:

常量字段值

SEMICOLON

public static final String SEMICOLON

Constant SEMICOLON=";"

另请参阅:

常量字段值

L

public static final String L

Constant L="L"

另请参阅:

常量字段值

V

public static final String V

Constant V="V"

另请参阅:

常量字段值

方法详细资料

accessible

public static <$ACCESSIBLE_OBJECT extends AccessibleObject> $ACCESSIBLE_OBJECT accessible($ACCESSIBLE_OBJECT accessibleObject)

return accessible accessibleObject

类型参数:

$ACCESSIBLE_OBJECT - a $ACCESSIBLE_OBJECT class

参数:

accessibleObject - accessibleObject method

返回:

accessibleObject

getDescriptor

public static String getDescriptor(Executable executable)

return descriptor of executable

参数:

executable - executable

返回:

descriptor

getDescriptor

public static String getDescriptor(Class<?> clazz)

get descriptor of class

参数:

clazz - clazz

返回:

descriptor char

getInternalName

public static String getInternalName(Class<?> clazz)

get internal name

参数:

clazz - clazz

返回:

internal name

getFieldValue

public static <T> T getFieldValue(Object obj,
                                  String fieldName)

getFieldValue.

类型参数:

T - a T class

参数:

obj - a Object object

fieldName - a String object

返回:

a T object

hasField

public static boolean hasField(Class<?> clazz,
                               String fieldName)

hasField.

参数:

clazz - a Class object

fieldName - a String object

返回:

a boolean

getFields

public static List<Field> getFields(Class<?> clazz)

getFields.

参数:

clazz - a Class object

返回:

a List object

getField

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

getField.

参数:

clazz - a Class object

fieldName - a String object

返回:

a Field object

getMethod

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

getMethod.

参数:

clazz - a Class object

methodName - a String object

parameterTypes - a Class object

返回:

a Method object

getMethods

public static List<Method> getMethods(Class<?> clazz)

Returns all declared methods of a class including methods of superclasses.

参数:

clazz - The class to get the declared methods for.

返回:

An array of all declared methods of the class.

getGenericTypes

public static Type[] getGenericTypes(Type paramType)

getGenericTypes.

参数:

paramType - a Type object

返回:

an array of Type objects

getGenericMap

public static Map<String,Type> getGenericMap(Type paramType)

isInstance

public static <T> boolean isInstance(T obj,
                                     Type t)

isInstance.

类型参数:

T - a T class

参数:

obj - a T object

t - a Type object

返回:

a boolean

typeOf

public static boolean typeOf(Object obj,
                             Type eType)

typeOf.

参数:

obj - a Object object

eType - a Type object

返回:

a boolean

setFieldValue

public static <T> void setFieldValue(T bean,
                                     String keyProperty,
                                     Object fieldValue)

setFieldValue.

类型参数:

T - a T class

参数:

bean - a T object

keyProperty - a String object

fieldValue - a Object object

getConstructorByDescriptor

public static <T> Constructor<T> getConstructorByDescriptor(Class<?> clazz,
                                                            String methodDescriptor)

getConstructorByDescriptor.

类型参数:

T - a T class

参数:

clazz - a Class object

methodDescriptor - a String object

返回:

a Constructor object

getMethodByDescriptor

public static Method getMethodByDescriptor(String methodName,
                                           Class<?> clazz,
                                           String methodDescriptor)

getMethodByDescriptor.

参数:

clazz - a Class object

methodName - a String object

methodDescriptor - a String object

返回:

a Method object

getArgsFromDescriptor

public static Type[] getArgsFromDescriptor(String methodDescriptor)

getArgsFromDescriptor.

参数:

methodDescriptor - a String object

返回:

an array of Type objects

getReturnTypeFromDescriptor

public static Type getReturnTypeFromDescriptor(String methodDescriptor)

getReturnTypeFromDescriptor.

参数:

methodDescriptor - a String object

返回:

a Type object

loadClass

public static Class<?> loadClass(String className)

loadClass.

参数:

className - a String object

返回:

a Class object

forClassName

public static Class<?> forClassName(String className)

forClassName.

参数:

className - a String object

返回:

a Class object

invoke

public static <R> R invoke(Object obj,
                           Method method,
                           Object... args)

invoke.

类型参数:

R - a R class

参数:

obj - a Object object

method - a Method object

args - a Object object

返回:

a R object

explain

public static void explain(Object obj)

explain.

参数:

obj - a Object object