olg.csv.bean.loader
Class BeanProcessorLoader<T>

java.lang.Object
  olg.csv.bean.loader.BeanProcessorLoader<T>

Type Parameters:

T - the entity

Direct Known Subclasses:

BeanProcessorLoader.RowBeanTransformerLoader

public class BeanProcessorLoader<T>
extends Object

Class dedicated to load BeanProcessor instances from an XML file. XML Root element must be one of the followings :

• bean-reader and conform to BeanReaderType from xsd File
• row-bean and conform to RowBeanType from xsd file

Nested Class Summary

protected static class

BeanProcessorLoader.RowBeanTransformerLoader<T> TransformerLoader adaptation in order to manage with beanRowType elements.

Constructor Summary

BeanProcessorLoader()

Method Summary

protected <I> IPropertyProcessor<I>	getPropertyParser(Element node, Class<I> beanClass) Returns new propertyProcessor which have responsability to set a property to the given bean.
protected BeanProcessor<T>	getTransformer(Element element, Class<T> classBean) Returns new instance of BeanProcessor from XML node.
protected <B> Class<?>	identifyFieldClass(String name, String className, Class<B> beanClass) Return thes concrete class with which the given field must be setted.
BeanProcessor<T>	load(File file) Returns the transformer described in the given XML file.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BeanProcessorLoader

public BeanProcessorLoader()

Method Detail

load

public BeanProcessor<T> load(File file)
                      throws LoadException

Returns the transformer described in the given XML file.

Parameters:

file - XML file conform to bean-reader xsd declaration. Must be not null.

Returns:

a new transformer

Throws:

LoadException - if an error occurs during loading

identifyFieldClass

protected <B> Class<?> identifyFieldClass(String name,
                                          String className,
                                          Class<B> beanClass)
                               throws LoadException

Return thes concrete class with which the given field must be setted.

Type Parameters:

B - the bean type that has the field

Parameters:

name - the field name

className - a candidate class, if null identify the concrete class from its setter

beanClass - the bean class that has the field

Returns:

the concrete class with which set the field

Throws:

LoadException - if the class is not concrete

getTransformer

protected final BeanProcessor<T> getTransformer(Element element,
                                                Class<T> classBean)
                                         throws LoadException

Returns new instance of BeanProcessor from XML node.

Parameters:

element - XML node conform to beanReaderType declaration or beanRowType declaration

classBean - the bean class the transformer has responsability to return. if null try to load class from class argument of the given XML element

Returns:

the bean processor loaded from the XML node.

Throws:

LoadException - if an error occurs during loading

getPropertyParser

protected <I> IPropertyProcessor<I> getPropertyParser(Element node,
                                                      Class<I> beanClass)
                                           throws XPathExpressionException,
                                                  LoadException

Returns new propertyProcessor which have responsability to set a property to the given bean.

Type Parameters:

I - parent bean type

Parameters:

node - XML node conform to MappingType declaration

beanClass - parent bean class of the property this propertyTransformer set

Returns:

the property processor loaded from the XML node.

Throws:

XPathExpressionException - If an XPath expression cannot be evaluated

LoadException - if an error occurs during loading