Java BeanWrapper.setAutoGrowNestedPaths方法代碼示例

import org.springframework.beans.BeanWrapper; //導入方法依賴的package包/類
/**
 * Injects the properties from the given Map to the given object. Additionally, a bean factory can be passed in for
 * copying property editors inside the injector.
 * 
 * @param instance bean instance to configure
 * @param properties
 * @param beanFactory
 */
public static void applyMapOntoInstance(Object instance, Map<String, ?> properties, AbstractBeanFactory beanFactory) {
	if (properties != null && !properties.isEmpty()) {
		BeanWrapper beanWrapper = PropertyAccessorFactory.forBeanPropertyAccess(instance);
		beanWrapper.setAutoGrowNestedPaths(true);

		// configure bean wrapper (using method from Spring 2.5.6)
		if (beanFactory != null) {
			beanFactory.copyRegisteredEditorsTo(beanWrapper);
		}
		for (Iterator<?> iterator = properties.entrySet().iterator(); iterator.hasNext();) {
			Map.Entry<String, ?> entry = (Map.Entry<String, ?>) iterator.next();
			String propertyName = entry.getKey();
			if (beanWrapper.isWritableProperty(propertyName)) {
				beanWrapper.setPropertyValue(propertyName, entry.getValue());
			}
		}
	}
}
 

import org.springframework.beans.BeanWrapper; //導入方法依賴的package包/類
/**
 * Modify the property values so that period separated property paths are valid for
 * map keys. Also creates new maps for properties of map type that are null (assuming
 * all maps are potentially nested). The standard bracket {@code[...]} dereferencing
 * is also accepted.
 * @param propertyValues the property values
 * @param target the target object
 * @return modified property values
 */
private MutablePropertyValues modifyProperties(MutablePropertyValues propertyValues,
		Object target) {
	propertyValues = getPropertyValuesForNamePrefix(propertyValues);
	if (target instanceof MapHolder) {
		propertyValues = addMapPrefix(propertyValues);
	}
	BeanWrapper wrapper = new BeanWrapperImpl(target);
	wrapper.setConversionService(
			new RelaxedConversionService(getConversionService()));
	wrapper.setAutoGrowNestedPaths(true);
	List<PropertyValue> sortedValues = new ArrayList<PropertyValue>();
	Set<String> modifiedNames = new HashSet<String>();
	List<String> sortedNames = getSortedPropertyNames(propertyValues);
	for (String name : sortedNames) {
		PropertyValue propertyValue = propertyValues.getPropertyValue(name);
		PropertyValue modifiedProperty = modifyProperty(wrapper, propertyValue);
		if (modifiedNames.add(modifiedProperty.getName())) {
			sortedValues.add(modifiedProperty);
		}
	}
	return new MutablePropertyValues(sortedValues);
}