程序包 org.apache.dubbo.common.utils

接口 FieldUtils

public interface FieldUtils

The utilities class for Java Reflection Field

从以下版本开始:

2.7.6

方法概要

静态方法

修饰符和类型	方法	说明
static Field	findField(Class<?> declaredClass, String fieldName)	Find the Field by the name in the specified class and its inherited types
static Field	findField(Object object, String fieldName)	Find the Field by the name in the specified class and its inherited types
static Field	getDeclaredField(Class<?> declaredClass, String fieldName)	Like the Class.getDeclaredField(String) method without throwing any Exception
static <T> T	getFieldValue(Object object, Field field)	Get the value of the specified Field
static Object	getFieldValue(Object object, String fieldName)	Get the value of the specified Field
static <T> T	setFieldValue(Object object, Field field, T value)	Set the value for the specified Field
static <T> T	setFieldValue(Object object, String fieldName, T value)	Set the value for the specified Field

方法详细资料

getDeclaredField

static Field getDeclaredField(Class<?> declaredClass,
                              String fieldName)

Like the Class.getDeclaredField(String) method without throwing any Exception

参数:

declaredClass - the declared class

fieldName - the name of Field

返回:

if can't be found, return null

findField

static Field findField(Class<?> declaredClass,
                       String fieldName)

Find the Field by the name in the specified class and its inherited types

参数:

declaredClass - the declared class

fieldName - the name of Field

返回:

if can't be found, return null

findField

static Field findField(Object object,
                       String fieldName)

Find the Field by the name in the specified class and its inherited types

参数:

object - the object whose field should be modified

fieldName - the name of Field

返回:

if can't be found, return null

getFieldValue

static Object getFieldValue(Object object,
                            String fieldName)

Get the value of the specified Field

参数:

object - the object whose field should be modified

fieldName - the name of Field

返回:

the value of the specified Field

getFieldValue

static <T> T getFieldValue(Object object,
                           Field field)

Get the value of the specified Field

参数:

object - the object whose field should be modified

field - Field

返回:

the value of the specified Field

setFieldValue

static <T> T setFieldValue(Object object,
                           String fieldName,
                           T value)

Set the value for the specified Field

参数:

object - the object whose field should be modified

fieldName - the name of Field

value - the value of field to be set

返回:

the previous value of the specified Field

setFieldValue

static <T> T setFieldValue(Object object,
                           Field field,
                           T value)

Set the value for the specified Field

参数:

object - the object whose field should be modified

field - Field

value - the value of field to be set

返回:

the previous value of the specified Field