接口 BeanWrapper
- 所有已知实现类:
BeanWrapperImpl
public interface BeanWrapper extends ConfigurablePropertyAccessor
The central interface of Spring's low-level JavaBeans infrastructure.Typically not used directly but rather implicitly via a
BeanFactoryor aDataBinder.Provides operations to analyze and manipulate standard JavaBeans: the ability to get and set property values (individually or in bulk), get property descriptors, and query the readability/writability of properties.
This interface supports nested properties enabling the setting of properties on subproperties to an unlimited depth.
A BeanWrapper's default for the "extractOldValueForEditor" setting is "false", to avoid side effects caused by getter method invocations. Turn this to "true" to expose present property values to custom editors.
- 从以下版本开始:
- 13 April 2001
- 作者:
- Rod Johnson, Juergen Hoeller
- 另请参阅:
PropertyAccessor,PropertyEditorRegistry,PropertyAccessorFactory.forBeanPropertyAccess(java.lang.Object),BeanFactory,BeanPropertyBindingResult,DataBinder.initBeanPropertyAccess()
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
方法概要
所有方法 实例方法 抽象方法 修饰符和类型 方法 说明 intgetAutoGrowCollectionLimit()Return the limit for array and collection auto-growing.PropertyDescriptorgetPropertyDescriptor(String propertyName)Obtain the property descriptor for a specific property of the wrapped object.PropertyDescriptor[]getPropertyDescriptors()Obtain the PropertyDescriptors for the wrapped object (as determined by standard JavaBeans introspection).Class<?>getWrappedClass()Return the type of the wrapped JavaBean object.ObjectgetWrappedInstance()Return the bean instance wrapped by this object, if any.voidsetAutoGrowCollectionLimit(int autoGrowCollectionLimit)Specify a limit for array and collection auto-growing.从接口继承的方法 org.springframework.beans.ConfigurablePropertyAccessor
getConversionService, isAutoGrowNestedPaths, isExtractOldValueForEditor, setAutoGrowNestedPaths, setConversionService, setExtractOldValueForEditor
从接口继承的方法 org.springframework.beans.PropertyAccessor
getPropertyType, getPropertyTypeDescriptor, getPropertyValue, isReadableProperty, isWritableProperty, setPropertyValue, setPropertyValue, setPropertyValues, setPropertyValues, setPropertyValues, setPropertyValues
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
方法详细资料
setAutoGrowCollectionLimit
void setAutoGrowCollectionLimit(int autoGrowCollectionLimit)
Specify a limit for array and collection auto-growing.Default is unlimited on a plain BeanWrapper.
- 从以下版本开始:
- 4.1
getAutoGrowCollectionLimit
int getAutoGrowCollectionLimit()
Return the limit for array and collection auto-growing.- 从以下版本开始:
- 4.1
getWrappedInstance
Object getWrappedInstance()
Return the bean instance wrapped by this object, if any.- 返回:
- the bean instance, or
nullif none set
getWrappedClass
Class<?> getWrappedClass()
Return the type of the wrapped JavaBean object.- 返回:
- the type of the wrapped bean instance, or
nullif no wrapped object has been set
getPropertyDescriptors
PropertyDescriptor[] getPropertyDescriptors()
Obtain the PropertyDescriptors for the wrapped object (as determined by standard JavaBeans introspection).- 返回:
- the PropertyDescriptors for the wrapped object
getPropertyDescriptor
PropertyDescriptor getPropertyDescriptor(String propertyName) throws InvalidPropertyException
Obtain the property descriptor for a specific property of the wrapped object.- 参数:
propertyName- the property to obtain the descriptor for (may be a nested path, but no indexed/mapped property)- 返回:
- the property descriptor for the specified property
- 抛出:
InvalidPropertyException- if there is no such property