org.springframework.beans

类 PropertyEditorRegistrySupport

java.lang.Object

org.springframework.beans.PropertyEditorRegistrySupport

所有已实现的接口:

PropertyEditorRegistry

直接已知子类:

TypeConverterSupport

public class PropertyEditorRegistrySupport
extends Object
implements PropertyEditorRegistry

Base implementation of the PropertyEditorRegistry interface. Provides management of default editors and custom editors. Mainly serves as base class for BeanWrapperImpl.

从以下版本开始:

1.2.6

作者:

Juergen Hoeller, Rob Harrop

另请参阅:

PropertyEditorManager, PropertyEditorSupport.setAsText(java.lang.String), PropertyEditorSupport.setValue(java.lang.Object)

构造器概要

构造器

构造器和说明
PropertyEditorRegistrySupport()

方法概要

限定符和类型	方法和说明
protected void	copyCustomEditorsTo(PropertyEditorRegistry target, String nestedProperty) Copy the custom editors registered in this instance to the given target registry.
protected void	copyDefaultEditorsTo(PropertyEditorRegistrySupport target) Copy the default editors registered in this instance to the given target registry.
PropertyEditor	findCustomEditor(Class<?> requiredType, String propertyPath) Find a custom property editor for the given type and property.
org.springframework.core.convert.ConversionService	getConversionService() Return the associated ConversionService, if any.
PropertyEditor	getDefaultEditor(Class<?> requiredType) Retrieve the default editor for the given property type, if any.
protected Class<?>	getPropertyType(String propertyPath) Determine the property type for the given property path.
protected Class<?>	guessPropertyTypeFromEditors(String propertyName) Guess the property type of the specified property from the registered custom editors (provided that they were registered for a specific type).
boolean	hasCustomEditorForElement(Class<?> elementType, String propertyPath) Determine whether this registry contains a custom editor for the specified array/collection element.
void	overrideDefaultEditor(Class<?> requiredType, PropertyEditor propertyEditor) Override the default editor for the specified type with the given property editor.
void	registerCustomEditor(Class<?> requiredType, PropertyEditor propertyEditor) Register the given custom property editor for all properties of the given type.
void	registerCustomEditor(Class<?> requiredType, String propertyPath, PropertyEditor propertyEditor) Register the given custom property editor for the given type and property, or for all properties of the given type.
protected void	registerDefaultEditors() Activate the default editors for this registry instance, allowing for lazily registering default editors when needed.
void	setConversionService(org.springframework.core.convert.ConversionService conversionService) Specify a Spring 3.0 ConversionService to use for converting property values, as an alternative to JavaBeans PropertyEditors.
void	useConfigValueEditors() Activate config value editors which are only intended for configuration purposes, such as StringArrayPropertyEditor.

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

PropertyEditorRegistrySupport

public PropertyEditorRegistrySupport()

方法详细资料

setConversionService

public void setConversionService(@Nullable
                                 org.springframework.core.convert.ConversionService conversionService)

Specify a Spring 3.0 ConversionService to use for converting property values, as an alternative to JavaBeans PropertyEditors.

getConversionService

@Nullable
public org.springframework.core.convert.ConversionService getConversionService()

Return the associated ConversionService, if any.

registerDefaultEditors

protected void registerDefaultEditors()

Activate the default editors for this registry instance, allowing for lazily registering default editors when needed.

useConfigValueEditors

public void useConfigValueEditors()

Activate config value editors which are only intended for configuration purposes, such as StringArrayPropertyEditor.

Those editors are not registered by default simply because they are in general inappropriate for data binding purposes. Of course, you may register them individually in any case, through registerCustomEditor(java.lang.Class<?>, java.beans.PropertyEditor).

overrideDefaultEditor

public void overrideDefaultEditor(Class<?> requiredType,
                                  PropertyEditor propertyEditor)

Override the default editor for the specified type with the given property editor.

Note that this is different from registering a custom editor in that the editor semantically still is a default editor. A ConversionService will override such a default editor, whereas custom editors usually override the ConversionService.

参数:

requiredType - the type of the property

propertyEditor - the editor to register

另请参阅:

registerCustomEditor(Class, PropertyEditor)

getDefaultEditor

@Nullable
public PropertyEditor getDefaultEditor(Class<?> requiredType)

Retrieve the default editor for the given property type, if any.

Lazily registers the default editors, if they are active.

参数:

requiredType - type of the property

返回:

the default editor, or null if none found

另请参阅:

registerDefaultEditors()

copyDefaultEditorsTo

protected void copyDefaultEditorsTo(PropertyEditorRegistrySupport target)

Copy the default editors registered in this instance to the given target registry.

参数:

target - the target registry to copy to

registerCustomEditor

public void registerCustomEditor(Class<?> requiredType,
                                 PropertyEditor propertyEditor)

从接口复制的说明: PropertyEditorRegistry

Register the given custom property editor for all properties of the given type.

指定者:

registerCustomEditor 在接口中 PropertyEditorRegistry

参数:

requiredType - the type of the property

propertyEditor - the editor to register

registerCustomEditor

public void registerCustomEditor(@Nullable
                                 Class<?> requiredType,
                                 @Nullable
                                 String propertyPath,
                                 PropertyEditor propertyEditor)

从接口复制的说明: PropertyEditorRegistry

Register the given custom property editor for the given type and property, or for all properties of the given type.

If the property path denotes an array or Collection property, the editor will get applied either to the array/Collection itself (the PropertyEditor has to create an array or Collection value) or to each element (the PropertyEditor has to create the element type), depending on the specified required type.

Note: Only one single registered custom editor per property path is supported. In the case of a Collection/array, do not register an editor for both the Collection/array and each element on the same property.

For example, if you wanted to register an editor for "items[n].quantity" (for all values n), you would use "items.quantity" as the value of the 'propertyPath' argument to this method.

指定者:

registerCustomEditor 在接口中 PropertyEditorRegistry

参数:

requiredType - the type of the property. This may be null if a property is given but should be specified in any case, in particular in case of a Collection - making clear whether the editor is supposed to apply to the entire Collection itself or to each of its entries. So as a general rule: Do not specify null here in case of a Collection/array!

propertyPath - the path of the property (name or nested path), or null if registering an editor for all properties of the given type

propertyEditor - editor to register

findCustomEditor

@Nullable
public PropertyEditor findCustomEditor(@Nullable
                                                  Class<?> requiredType,
                                                  @Nullable
                                                  String propertyPath)

从接口复制的说明: PropertyEditorRegistry

Find a custom property editor for the given type and property.

指定者:

findCustomEditor 在接口中 PropertyEditorRegistry

参数:

requiredType - the type of the property (can be null if a property is given but should be specified in any case for consistency checking)

propertyPath - the path of the property (name or nested path), or null if looking for an editor for all properties of the given type

返回:

the registered editor, or null if none

hasCustomEditorForElement

public boolean hasCustomEditorForElement(@Nullable
                                         Class<?> elementType,
                                         @Nullable
                                         String propertyPath)

Determine whether this registry contains a custom editor for the specified array/collection element.

参数:

elementType - the target type of the element (can be null if not known)

propertyPath - the property path (typically of the array/collection; can be null if not known)

返回:

whether a matching custom editor has been found

getPropertyType

@Nullable
protected Class<?> getPropertyType(String propertyPath)

Determine the property type for the given property path.

Called by findCustomEditor(java.lang.Class<?>, java.lang.String) if no required type has been specified, to be able to find a type-specific editor even if just given a property path.

The default implementation always returns null. BeanWrapperImpl overrides this with the standard getPropertyType method as defined by the BeanWrapper interface.

参数:

propertyPath - the property path to determine the type for

返回:

the type of the property, or null if not determinable

另请参阅:

PropertyAccessor.getPropertyType(String)

guessPropertyTypeFromEditors

@Nullable
protected Class<?> guessPropertyTypeFromEditors(String propertyName)

Guess the property type of the specified property from the registered custom editors (provided that they were registered for a specific type).

参数:

propertyName - the name of the property

返回:

the property type, or null if not determinable

copyCustomEditorsTo

protected void copyCustomEditorsTo(PropertyEditorRegistry target,
                                   @Nullable
                                   String nestedProperty)

Copy the custom editors registered in this instance to the given target registry.

参数:

target - the target registry to copy to

nestedProperty - the nested property path of the target registry, if any. If this is non-null, only editors registered for a path below this nested property will be copied. If this is null, all editors will be copied.