org.apache.dubbo.common.utils

Interface FieldUtils

public interface FieldUtils

The utilities class for Java Reflection Field

Since:

2.7.6

Method Summary

Modifier and Type	Method and Description
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

Method Detail

getDeclaredField

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

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

Parameters:

declaredClass - the declared class

fieldName - the name of Field

Returns:

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

Parameters:

declaredClass - the declared class

fieldName - the name of Field

Returns:

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

Parameters:

object - the object whose field should be modified

fieldName - the name of Field

Returns:

if can't be found, return null

getFieldValue

static Object getFieldValue(Object object,
                            String fieldName)

Get the value of the specified Field

Parameters:

object - the object whose field should be modified

fieldName - the name of Field

Returns:

the value of the specified Field

getFieldValue

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

Get the value of the specified Field

Parameters:

object - the object whose field should be modified

field - Field

Returns:

the value of the specified Field

setFieldValue

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

Set the value for the specified Field

Parameters:

object - the object whose field should be modified

fieldName - the name of Field

value - the value of field to be set

Returns:

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

Parameters:

object - the object whose field should be modified

field - Field

value - the value of field to be set

Returns:

the previous value of the specified Field