Package org.aoju.bus.core.beans.copier.provider

Class BeanValueProvider

java.lang.Object

org.aoju.bus.core.beans.copier.provider.BeanValueProvider

All Implemented Interfaces:

ValueProvider<String>

public class BeanValueProvider
extends Object
implements ValueProvider<String>

Bean的值提供者

Since:

Java 17+

Author:

Kimi Liu

Constructor Summary

Constructors

Constructor	Description
BeanValueProvider(Object bean, boolean ignoreCase, boolean ignoreError)	构造
BeanValueProvider(Object bean, boolean ignoreCase, boolean ignoreError, Editor<String> keyEditor)	构造

Method Summary

Modifier and Type	Method	Description
boolean	containsKey(String key)	是否包含指定KEY，如果不包含则忽略注入 此接口方法单独需要实现的意义在于：有些值提供者（比如Map）key是存在的，但是value为null，此时如果需要注入这个null，需要根据此方法判断
Object	value(String key, Type valueType)	获取值 返回值一般需要匹配被注入类型，如果不匹配会调用默认转换 Convert#convert(Type, Object)实现转换

Methods inherited from class java.lang.Object

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

Constructor Details

BeanValueProvider

public BeanValueProvider(Object bean,
 boolean ignoreCase,
 boolean ignoreError)

构造

Parameters:

bean - Bean

ignoreCase - 是否忽略字段大小写

ignoreError - 是否忽略字段值读取错误

BeanValueProvider

public BeanValueProvider(Object bean,
 boolean ignoreCase,
 boolean ignoreError,
 Editor<String> keyEditor)

构造

Parameters:

bean - Bean

ignoreCase - 是否忽略字段大小写

ignoreError - 是否忽略字段值读取错误

keyEditor - 键编辑器

Method Details

value

public Object value(String key,
 Type valueType)

Description copied from interface: ValueProvider

获取值 返回值一般需要匹配被注入类型，如果不匹配会调用默认转换 Convert#convert(Type, Object)实现转换

Specified by:

value in interface ValueProvider<String>

Parameters:

key - Bean对象中参数名

valueType - 被注入的值的类型

Returns:

对应参数名的值

containsKey

public boolean containsKey(String key)

Description copied from interface: ValueProvider

是否包含指定KEY，如果不包含则忽略注入 此接口方法单独需要实现的意义在于：有些值提供者（比如Map）key是存在的，但是value为null，此时如果需要注入这个null，需要根据此方法判断

Specified by:

containsKey in interface ValueProvider<String>

Parameters:

key - Bean对象中参数名

Returns:

是否包含指定KEY