net.sf.oval.ogn
Class ObjectGraphNavigatorJXPathImpl

java.lang.Object
  net.sf.oval.ogn.ObjectGraphNavigatorJXPathImpl

All Implemented Interfaces:

ObjectGraphNavigator

public class ObjectGraphNavigatorJXPathImpl
extends Object
implements ObjectGraphNavigator

JXPath "http://commons.apache.org/jxpath/" based object graph navigator implementation.

Author:

Sebastian Thomschke

Nested Class Summary

protected static class	ObjectGraphNavigatorJXPathImpl.BeanPointerEx
protected static class	ObjectGraphNavigatorJXPathImpl.BeanPointerFactoryEx

Constructor Summary

ObjectGraphNavigatorJXPathImpl()

Method Summary

ObjectGraphNavigationResult

navigateTo(Object root, String xpath) Navigates through the object graph starting at root object.

Methods inherited from class java.lang.Object

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

Constructor Detail

ObjectGraphNavigatorJXPathImpl

public ObjectGraphNavigatorJXPathImpl()

Method Detail

navigateTo

public ObjectGraphNavigationResult navigateTo(Object root,
                                              String xpath)
                                       throws InvalidConfigurationException

Description copied from interface: ObjectGraphNavigator

Navigates through the object graph starting at root object.

Specified by:

navigateTo in interface ObjectGraphNavigator

Parameters:

root - the root object to start the navigation from

xpath - the object navigation path relative to the root object. The path format is implementation specific.

Returns:

the result of the navigation operation. null is returned if the target could not be determined, e.g. because of null values in the path.

Throws:

InvalidConfigurationException - if the given path is invalid, e.g. because of non-existing fields/properties named in the path.