olg.csv.bean.impl
Class AbstractPropertyProcessor<B>

java.lang.Object
  olg.csv.bean.impl.AbstractPropertyProcessor<B>

Type Parameters:

B - dedicated bean the Propertytransformer deals with

All Implemented Interfaces:

IPropertyProcessor<B>

Direct Known Subclasses:

ComplexPropertyProcessor, PropertyProcessor

public abstract class AbstractPropertyProcessor<B>
extends Object
implements IPropertyProcessor<B>

In reading process, Class responsible of bean properties instantiation from list of Strings. This class seems to be the same as BeanProcessor class. But its motivation is different : We want to instantiate a characteristic of a bean while Transformer allows to product bean completed with its properties set by PropertyTransformers

Field Summary

protected Class<B>	beanClass The class of the bean this transformer deals with.
protected Method	method the method used to set the property of a <B> bean.

Constructor Summary

AbstractPropertyProcessor()

Method Summary

Class<B>	getBeanClass() Returns the class of the bean this transformer deals with.
static <T,P> IPropertyProcessor<T>	getComplexPropertyTransformer(IBeanProcessor<P> transformer, Class<T> beanClass, String propertyName) Returns a property processor which set a property of a bean with the help of a transformer.
static <T,X> IPropertyProcessor<T>	getSimplePropertyTransformer(AbstractGetter getter, AbstractParser<X> parser, String propertyName, Class<T> clazz) Returns a simple property processor which set a property of bean with the help of a getter and a parser.
protected B	invoke(Object field, B bean) allows to set field of a bean.
abstract B	transform(Row line, B bean) Returns the bean after this transformer sets its property from a row.

Methods inherited from class java.lang.Object

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

Field Detail

beanClass

protected Class<B> beanClass

The class of the bean this transformer deals with.

method

protected Method method

the method used to set the property of a <B> bean.

Constructor Detail

AbstractPropertyProcessor

public AbstractPropertyProcessor()

Method Detail

getBeanClass

public final Class<B> getBeanClass()

Returns the class of the bean this transformer deals with.

Returns:

the bean class.

transform

public abstract B transform(Row line,
                            B bean)

Description copied from interface: IPropertyProcessor

Returns the bean after this transformer sets its property from a row.

Specified by:

transform in interface IPropertyProcessor<B>

Parameters:

line - the row. list of strings which represents the property of the bean

bean - the bean this transformer set property (or properties).

Returns:

the given bean.If the given bean is null a new instance is created and returned.

invoke

protected final B invoke(Object field,
                         B bean)

allows to set field of a bean.

Parameters:

field - the value of the field

bean - the bean to set its field

Returns:

the bean, if B argument is null return a new bean with its field setted.

getSimplePropertyTransformer

public static final <T,X> IPropertyProcessor<T> getSimplePropertyTransformer(AbstractGetter getter,
                                                                             AbstractParser<X> parser,
                                                                             String propertyName,
                                                                             Class<T> clazz)

Returns a simple property processor which set a property of bean with the help of a getter and a parser. Typically the case when a property matches a string from a list of Strings.

Type Parameters:

T - the bean type

X - the property type

Parameters:

getter - the getter. Allows to extract a sting corresponding to the property to set. Must be not null.

parser - the parser. Allows to instantiate the property from a String. Must be not null.

propertyName - the name of the property to set. Must be not null .

clazz - the bean class. Must be not null.

Returns:

new instance of an basic property processor.

See Also:

transform(Row, Object)

getComplexPropertyTransformer

public static final <T,P> IPropertyProcessor<T> getComplexPropertyTransformer(IBeanProcessor<P> transformer,
                                                                              Class<T> beanClass,
                                                                              String propertyName)

Returns a property processor which set a property of a bean with the help of a transformer. Typically the case where we instanciate a bean from a list of Strings we want to set as a property of our final bean

Type Parameters:

T - the bean type

P - th property type

Parameters:

transformer - the transformer which products the value of the property to set. Must not be null.

beanClass - the class of the bean to return. Must not be null .

propertyName - the name of the property to set. Must not be null .

Returns:

new instance