net.guerlab.commons.reflection

类 FieldUtil

java.lang.Object

net.guerlab.commons.reflection.FieldUtil

public final class FieldUtil
extends Object

类字段工具

作者:

guer

方法概要

限定符和类型	方法和说明
static Object	get(Object object, Field field) 读取属性值
static Object	get(Object object, String name) 读取属性值
static Field	getField(Class<?> clazz, String name) 根据类对象获取字段列表
static List<Field>	getFields(Class<?> clazz) 根据类对象获取字段列表
static List<Field>	getFieldsWithFilter(Class<?> clazz, Collection<Predicate<Field>> filters) 获取过滤后的字段列表
static List<Field>	getFieldsWithFilter(Class<?> clazz, Predicate<Field>... filters) 获取过滤后的字段列表
static boolean	isNumberClass(Class<?> fieldType) 判断某个类型是否为数值类
static void	put(Object object, Field field, Object value) 设置属性
static void	put(Object object, String name, Object value) 设置属性
static Object	read(Object object, Field field) 读取属性值
static Object	read(Object object, String name) 读取属性值
static void	write(Object object, Field field, Object value) 设置属性
static void	write(Object object, String name, Object value) 设置属性

从类继承的方法 java.lang.Object

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

方法详细资料

get

public static Object get(Object object,
                         Field field)

读取属性值

参数:

object - 对象

field - 字段

返回:

属性值

get

public static Object get(Object object,
                         String name)

读取属性值

参数:

object - 对象

name - 属性名

返回:

属性值

read

public static Object read(Object object,
                          String name)
                   throws IllegalAccessException,
                          InvocationTargetException,
                          IntrospectionException

读取属性值

参数:

object - 对象

name - 属性名

返回:

属性值

抛出:

IllegalAccessException - if this Method object is enforcing Java language access control and the underlying method is inaccessible.

InvocationTargetException - if the underlying method throws an exception.

IntrospectionException - if an exception occurs during introspection.

read

public static Object read(Object object,
                          Field field)
                   throws IllegalAccessException,
                          InvocationTargetException,
                          IntrospectionException

读取属性值

参数:

object - 对象

field - 字段

返回:

属性值

抛出:

IllegalAccessException - if this Method object is enforcing Java language access control and the underlying method is inaccessible.

InvocationTargetException - if the underlying method throws an exception.

IntrospectionException - if an exception occurs during introspection.

put

public static void put(Object object,
                       Field field,
                       Object value)

设置属性

参数:

object - 对象

field - 字段

value - 属性值

put

public static void put(Object object,
                       String name,
                       Object value)

设置属性

参数:

object - 对象

name - 属性名

value - 属性值

write

public static void write(Object object,
                         String name,
                         Object value)
                  throws IntrospectionException,
                         InvocationTargetException,
                         IllegalAccessException

设置属性

参数:

object - 对象

name - 属性名

value - 属性值

抛出:

IntrospectionException - if an exception occurs during introspection.

InvocationTargetException - if the underlying method throws an exception.

IllegalAccessException - if this Method object is enforcing Java language access control and the underlying method is inaccessible.

write

public static void write(Object object,
                         Field field,
                         Object value)
                  throws IntrospectionException,
                         InvocationTargetException,
                         IllegalAccessException

设置属性

参数:

object - 对象

field - 字段

value - 属性值

抛出:

IntrospectionException - if an exception occurs during introspection.

InvocationTargetException - if the underlying method throws an exception.

IllegalAccessException - if this Method object is enforcing Java language access control and the underlying method is inaccessible.

isNumberClass

public static boolean isNumberClass(Class<?> fieldType)

判断某个类型是否为数值类

参数:

fieldType - 字段类型

返回:

是否为数值类型

getFields

public static List<Field> getFields(Class<?> clazz)

根据类对象获取字段列表

参数:

clazz - 类对象

返回:

字段列表

getField

public static Field getField(Class<?> clazz,
                             String name)

根据类对象获取字段列表

参数:

clazz - 类对象

返回:

字段列表

getFieldsWithFilter

public static List<Field> getFieldsWithFilter(Class<?> clazz,
                                              Collection<Predicate<Field>> filters)

获取过滤后的字段列表

参数:

clazz - 类对象

filters - 过滤器列表

返回:

字段列表

getFieldsWithFilter

@SafeVarargs
public static List<Field> getFieldsWithFilter(Class<?> clazz,
                                                           Predicate<Field>... filters)

获取过滤后的字段列表

参数:

clazz - 类对象

filters - 过滤器列表

返回:

字段列表