GrepCode: org.springframework.beans.BeanWrapper (.java) - Interface

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org.springframework.beans.BeanWrapper

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 /*
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  * Copyright 2002-2008 the original author or authors.
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  *
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  * Licensed under the Apache License, Version 2.0 (the "License");
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  * you may not use this file except in compliance with the License.
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  * You may obtain a copy of the License at
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  *
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  *      http://www.apache.org/licenses/LICENSE-2.0
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  *
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 * Unless required by applicable law or agreed to in writing, software
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 * distributed under the License is distributed on an "AS IS" BASIS,
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 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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 * See the License for the specific language governing permissions and
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 * limitations under the License.
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 */
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package org.springframework.beans;
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import java.beans.PropertyDescriptor;

 The central interface of Spring's low-level JavaBeans infrastructure.

 Typically not used directly but rather implicitly via a
 org.springframework.beans.factory.BeanFactory or a
 org.springframework.validation.DataBinder.

 
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 instance can be used repeatedly, with its
 target object (the wrapped JavaBean
 instance) changing as required.

 
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.

 
 Author(s):Rod JohnsonJuergen Hoeller Since:13 April 2001 See also:ConfigurablePropertyAccessor.setExtractOldValueForEditor(boolean)PropertyAccessorPropertyEditorRegistryPropertyAccessorFactory.forBeanPropertyAccess(java.lang.Object)org.springframework.beans.factory.BeanFactoryorg.springframework.validation.BeanPropertyBindingResultorg.springframework.validation.DataBinder#initBeanPropertyAccess()
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public interface BeanWrapper extends ConfigurablePropertyAccessor {

	
 Change the wrapped JavaBean object.
 
 Deprecated:as of Spring 2.5,
 in favor of recreating a BeanWrapper per target instance Parameters:obj the bean instance to wrap
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	void setWrappedInstance(Object obj);

	
 Return the bean instance wrapped by this object, if any.
 
 Returns:the bean instance, or null if none set
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	Object getWrappedInstance();

	
 Return the type of the wrapped JavaBean object.
 
 Returns:the type of the wrapped bean instance,
 or null if no wrapped object has been set
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	Class getWrappedClass();

	
 Obtain the PropertyDescriptors for the wrapped object
 (as determined by standard JavaBeans introspection).
 
 Returns:the PropertyDescriptors for the wrapped object
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	PropertyDescriptor[] getPropertyDescriptors();

	
 Obtain the property descriptor for a specific property
 of the wrapped object.
 
 Parameters:propertyName the property to obtain the descriptor for
 (may be a nested path, but no indexed/mapped property) Returns:the property descriptor for the specified property Throws:InvalidPropertyException if there is no such property
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	PropertyDescriptor getPropertyDescriptor(String propertyName) throws BeansException;
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}