org.apache.shardingsphere.infra.util.reflection

Class ReflectionUtil

java.lang.Object

org.apache.shardingsphere.infra.util.reflection.ReflectionUtil

public final class ReflectionUtil
extends Object

Reflection utility.

Constructor Summary

Constructors

Constructor and Description
ReflectionUtil()

Method Summary

Modifier and Type	Method and Description
static <T> Optional<T>	getFieldValue(Object target, String fieldName) Get field value.
static <T> T	getStaticFieldValue(Class<?> target, String fieldName) Get static field value.
static <T> T	invokeMethod(Method method, Object target, Object... args) Invoke method.
static void	setStaticFieldValue(Class<?> target, String fieldName, Object value) Set static field value.

Methods inherited from class java.lang.Object

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

Constructor Detail

ReflectionUtil

public ReflectionUtil()

Method Detail

getFieldValue

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

Get field value.

Type Parameters:

T - type of field value

Parameters:

target - target

fieldName - field name

Returns:

field value

getStaticFieldValue

public static <T> T getStaticFieldValue(Class<?> target,
                                        String fieldName)

Get static field value.

Type Parameters:

T - type of field value

Parameters:

target - target

fieldName - field name

Returns:

field value

setStaticFieldValue

public static void setStaticFieldValue(Class<?> target,
                                       String fieldName,
                                       Object value)

Set static field value.

Parameters:

target - target

fieldName - field name

value - value

invokeMethod

public static <T> T invokeMethod(Method method,
                                 Object target,
                                 Object... args)

Invoke method.

Type Parameters:

T - type of invoke result

Parameters:

method - method

target - target

args - arguments

Returns:

invoke result