java.lang.Object
- org.springframework.beans.PropertyEditorRegistrySupport
- - org.springframework.beans.TypeConverterSupport
  - - org.springframework.beans.AbstractPropertyAccessor
    - - org.springframework.beans.AbstractNestablePropertyAccessor
      - org.springframework.beans.DirectFieldAccessor

所有已实现的接口:
ConfigurablePropertyAccessor, PropertyAccessor, PropertyEditorRegistry, TypeConverter
```
public class DirectFieldAccessor
extends AbstractNestablePropertyAccessor
```
ConfigurablePropertyAccessor implementation that directly accesses instance fields. Allows for direct binding to fields instead of going through JavaBean setters.
As of Spring 4.2, the vast majority of the BeanWrapper features have been merged to AbstractPropertyAccessor, which means that property traversal as well as collections and map access is now supported here as well.
A DirectFieldAccessor's default for the "extractOldValueForEditor" setting is "true", since a field can always be read without side effects.
从以下版本开始:
2.0
作者:
Juergen Hoeller, Stephane Nicoll
另请参阅:
AbstractPropertyAccessor.setExtractOldValueForEditor(boolean), BeanWrapper, DirectFieldBindingResult, DataBinder.initDirectFieldAccess()

嵌套类概要
- 从类继承的嵌套类/接口 org.springframework.beans.AbstractNestablePropertyAccessor
  AbstractNestablePropertyAccessor.PropertyHandler, AbstractNestablePropertyAccessor.PropertyTokenHolder

字段概要
- 从接口继承的字段 org.springframework.beans.PropertyAccessor
  NESTED_PROPERTY_SEPARATOR, NESTED_PROPERTY_SEPARATOR_CHAR, PROPERTY_KEY_PREFIX, PROPERTY_KEY_PREFIX_CHAR, PROPERTY_KEY_SUFFIX, PROPERTY_KEY_SUFFIX_CHAR

构造器概要

构造器
限定符	构造器	说明
	`DirectFieldAccessor(Object object)`	Create a new DirectFieldAccessor for the given object.
`protected`	`DirectFieldAccessor(Object object, String nestedPath, DirectFieldAccessor parent)`	Create a new DirectFieldAccessor for the given object, registering a nested path that the object is in.

方法概要

所有方法实例方法具体方法
修饰符和类型	方法	说明
`protected NotWritablePropertyException`	`createNotWritablePropertyException(String propertyName)`	Create a `NotWritablePropertyException` for the specified property.
`protected org.springframework.beans.DirectFieldAccessor.FieldPropertyHandler`	`getLocalPropertyHandler(String propertyName)`	Return a `AbstractNestablePropertyAccessor.PropertyHandler` for the specified local `propertyName`.
`protected DirectFieldAccessor`	`newNestedPropertyAccessor(Object object, String nestedPath)`	Create a new nested property accessor instance.

从类继承的方法 org.springframework.beans.AbstractPropertyAccessor
isAutoGrowNestedPaths, isExtractOldValueForEditor, setAutoGrowNestedPaths, setExtractOldValueForEditor, setPropertyValues, setPropertyValues, setPropertyValues, setPropertyValues

从类继承的方法 org.springframework.beans.TypeConverterSupport
convertIfNecessary, convertIfNecessary, convertIfNecessary

从类继承的方法 org.springframework.beans.PropertyEditorRegistrySupport
copyCustomEditorsTo, copyDefaultEditorsTo, findCustomEditor, getConversionService, getDefaultEditor, guessPropertyTypeFromEditors, hasCustomEditorForElement, overrideDefaultEditor, registerCustomEditor, registerCustomEditor, registerDefaultEditors, setConversionService, useConfigValueEditors

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

从接口继承的方法 org.springframework.beans.ConfigurablePropertyAccessor
getConversionService, setConversionService

从接口继承的方法 org.springframework.beans.PropertyEditorRegistry
findCustomEditor, registerCustomEditor, registerCustomEditor

从接口继承的方法 org.springframework.beans.TypeConverter
convertIfNecessary, convertIfNecessary, convertIfNecessary

- 构造器详细资料
  - DirectFieldAccessor
```
public DirectFieldAccessor(Object object)
```
    Create a new DirectFieldAccessor for the given object.
    参数:
    object - the object wrapped by this DirectFieldAccessor
  - DirectFieldAccessor
```
protected DirectFieldAccessor(Object object,
                              String nestedPath,
                              DirectFieldAccessor parent)
```
    Create a new DirectFieldAccessor for the given object, registering a nested path that the object is in.
    参数:
    object - the object wrapped by this DirectFieldAccessor
    nestedPath - the nested path of the object
    parent - the containing DirectFieldAccessor (must not be null)
- 方法详细资料
  - getLocalPropertyHandler
```
protected org.springframework.beans.DirectFieldAccessor.FieldPropertyHandler getLocalPropertyHandler(String propertyName)
```
    从类复制的说明: AbstractNestablePropertyAccessor
    Return a AbstractNestablePropertyAccessor.PropertyHandler for the specified local propertyName. Only used to reach a property available in the current context.
    指定者:
    getLocalPropertyHandler 在类中 AbstractNestablePropertyAccessor
    参数:
    propertyName - the name of a local property
    返回:
    the handler for that property or null if it has not been found
  - newNestedPropertyAccessor
```
protected DirectFieldAccessor newNestedPropertyAccessor(Object object,
                                                        String nestedPath)
```
    从类复制的说明: AbstractNestablePropertyAccessor
    Create a new nested property accessor instance. Can be overridden in subclasses to create a PropertyAccessor subclass.
    指定者:
    newNestedPropertyAccessor 在类中 AbstractNestablePropertyAccessor
    参数:
    object - object wrapped by this PropertyAccessor
    nestedPath - the nested path of the object
    返回:
    the nested PropertyAccessor instance
  - createNotWritablePropertyException
```
protected NotWritablePropertyException createNotWritablePropertyException(String propertyName)
```
    从类复制的说明: AbstractNestablePropertyAccessor
    Create a NotWritablePropertyException for the specified property.
    指定者:
    createNotWritablePropertyException 在类中 AbstractNestablePropertyAccessor

类 DirectFieldAccessor

嵌套类概要

从类继承的嵌套类/接口 org.springframework.beans.AbstractNestablePropertyAccessor

字段概要

从接口继承的字段 org.springframework.beans.PropertyAccessor

构造器概要

方法概要

从类继承的方法 org.springframework.beans.AbstractNestablePropertyAccessor

从类继承的方法 org.springframework.beans.AbstractPropertyAccessor

从类继承的方法 org.springframework.beans.TypeConverterSupport

从类继承的方法 org.springframework.beans.PropertyEditorRegistrySupport

从类继承的方法 java.lang.Object

从接口继承的方法 org.springframework.beans.ConfigurablePropertyAccessor

从接口继承的方法 org.springframework.beans.PropertyEditorRegistry

从接口继承的方法 org.springframework.beans.TypeConverter

构造器详细资料

DirectFieldAccessor

DirectFieldAccessor

方法详细资料

getLocalPropertyHandler

newNestedPropertyAccessor

createNotWritablePropertyException