org.apache.shardingsphere.data.pipeline.core.util

类 ReflectionUtil

java.lang.Object

org.apache.shardingsphere.data.pipeline.core.util.ReflectionUtil

public final class ReflectionUtil
extends Object

Reflection utils.

构造器概要

构造器

构造器和说明
ReflectionUtil()

方法概要

限定符和类型	方法和说明
static <T> T	getFieldValue(Object target, String fieldName, Class<T> valueClass) Get field value from instance target object.
static Object	invokeMethod(Object target, String methodName, Class<?>[] parameterTypes, Object[] parameterValues) Invoke method.
static void	setFieldValue(Object target, String fieldName, Object value) Set value into target object field.

从类继承的方法 java.lang.Object

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

构造器详细资料

ReflectionUtil

public ReflectionUtil()

方法详细资料

setFieldValue

public static void setFieldValue(Object target,
                                 String fieldName,
                                 Object value)
                          throws NoSuchFieldException,
                                 IllegalAccessException

Set value into target object field.

参数:

target - target object

fieldName - field name

value - new value

抛出:

NoSuchFieldException - no such field exception

IllegalAccessException - illegal access exception

getFieldValue

public static <T> T getFieldValue(Object target,
                                  String fieldName,
                                  Class<T> valueClass)
                           throws NoSuchFieldException,
                                  IllegalAccessException

Get field value from instance target object.

类型参数:

T - expected value class

参数:

target - target object

fieldName - field name

valueClass - expected value class

返回:

target filed value

抛出:

NoSuchFieldException - no such field exception

IllegalAccessException - illegal access exception

invokeMethod

public static Object invokeMethod(Object target,
                                  String methodName,
                                  Class<?>[] parameterTypes,
                                  Object[] parameterValues)
                           throws NoSuchMethodException,
                                  InvocationTargetException,
                                  IllegalAccessException

Invoke method.

参数:

target - target object

methodName - method name

parameterTypes - parameter types

parameterValues - parameter values

返回:

invoke method result.

抛出:

NoSuchMethodException - no such field exception

InvocationTargetException - invocation target exception

IllegalAccessException - illegal access exception