cn.webfuse.core.kit.reflect

类 ClassKits

java.lang.Object

cn.webfuse.core.kit.reflect.ClassKits

public class ClassKits
extends Object

获取Class信息的工具类

copy from vjtools and do some modify

构造器概要

构造器

构造器和说明
ClassKits()

方法概要

限定符和类型	方法和说明
static <T> Class<T>	getClassGenericType(Class clazz) 通过反射, 获得Class定义中声明的泛型参数的类型, 注意泛型必须定义在父类处.
static Class	getClassGenericType(Class clazz, int index) 通过反射, 获得Class定义中声明的父类的泛型参数的类型.
static boolean	instanceOf(Class clazz, Class target) 判断某个值对象是否是某个类对象
static boolean	isSubClassOrInterfaceOf(Class subclass, Class superclass) https://github.com/linkedin/linkedin-utils/blob/master/org.linkedin.util-core/src/main/java/org/linkedin/util/reflect/ReflectUtils.java The purpose of this method is somewhat to provide a better naming / documentation than the javadoc of Class.isAssignableFrom method.
static Class<?>	unwrapCglib(Object instance) 获取CGLib处理过后的实体的原Class.

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

ClassKits

public ClassKits()

方法详细资料

isSubClassOrInterfaceOf

public static boolean isSubClassOrInterfaceOf(Class subclass,
                                              Class superclass)

https://github.com/linkedin/linkedin-utils/blob/master/org.linkedin.util-core/src/main/java/org/linkedin/util/reflect/ReflectUtils.java

The purpose of this method is somewhat to provide a better naming / documentation than the javadoc of Class.isAssignableFrom method.

返回:

true if subclass is a subclass or sub interface of superclass

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instanceOf

public static boolean instanceOf(Class clazz,
                                 Class target)

判断某个值对象是否是某个类对象

参数:

clazz - 值对象

target - 对象 如：x.class

返回:

unwrapCglib

public static Class<?> unwrapCglib(Object instance)

获取CGLib处理过后的实体的原Class.

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getClassGenericType

public static <T> Class<T> getClassGenericType(Class clazz)

通过反射, 获得Class定义中声明的泛型参数的类型,

注意泛型必须定义在父类处. 这是唯一可以通过反射从泛型获得Class实例的地方.

如无法找到, 返回Object.class.

eg. public UserDao extends HibernateDao

参数:

clazz - The class to introspect

返回:

the first generic declaration, or Object.class if cannot be determined

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getClassGenericType

public static Class getClassGenericType(Class clazz,
                                        int index)

通过反射, 获得Class定义中声明的父类的泛型参数的类型.

注意泛型必须定义在父类处. 这是唯一可以通过反射从泛型获得Class实例的地方.

如无法找到, 返回Object.class.

如public UserDao extends HibernateDao

参数:

clazz - clazz The class to introspect

index - the Index of the generic declaration, start from 0.

返回:

the index generic declaration, or Object.class if cannot be determined

copy from vjtools