de.schwarzrot.data.access
Class PropertyAccessor

java.lang.Object
  de.schwarzrot.data.access.PropertyAccessor

public class PropertyAccessor
extends Object

helper class to allow anonymous access to a property of a bean. Opposed to the means of DataAccessor this class is not the anonymous access to the properties of a certain bean. Instead it is used to define an access rule to beans properties, when the bean is unknown or subject to heavy changes.

Primary use of this class is the BeanListCellRenderer, which has to extract a beans property for display. As the beans are most likely to be part of a Collection, it doesn't make much sense, to define an accessor for each bean.

propertyName may be the name of a property or the path to a property of a embedded bean. This accessor also handles knownChildren as well as unknownChildren, which means, a segment of the property path may be a key to the map (for known children) or an index (for unknwon children). All segments should be separated by "." like java classes.

Author:

Reinhard Mantey

Constructor Summary

PropertyAccessor(String propertyName)

Method Summary

Object	getPropertyValue(Object bean)
protected void	setup()

Methods inherited from class java.lang.Object

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

Constructor Detail

PropertyAccessor

public PropertyAccessor(String propertyName)

Method Detail

getPropertyValue

public Object getPropertyValue(Object bean)

setup

protected void setup()