org.filteredpush.rdf.reflection
Class ClassDeconstructor

java.lang.Object
  org.filteredpush.rdf.reflection.ClassDeconstructor

public class ClassDeconstructor
extends java.lang.Object

Starting with a top-level class, works recursively on the tree of related classes (fields, methods, collections and sets) and stores java reflection information about how to access each classes members. Once initialized, can be used on an instance of the same top-level class to return all associated objects as a DeconstructedObjectGraph.

Author:

dlowery

Constructor Summary

ClassDeconstructor(java.lang.Class<?> clazz)
Constructor will take the top-level class given as an argument and walk the tree recursively to find all classes and all their members.

Method Summary

ClassMembers	addClass(java.lang.Class<?> clazz) Add a class and its members if it does not already exist in the list, otherwise, return the members of the existing entry.
DeconstructedObjectGraph	deconstruct(java.lang.Object topLevelObj) Given an instance of the top-level class this ClassDeconstructor was initialized with, deconstruct the object and return a DeconstructedObjectGraph.
DeconstructedObject	getStaticClassInstance(java.lang.Class<?> clazz) If an instance of a class which is not in the package of the top-level class package is needed, this method can be used to create and return an instance of that class (assuming the constructor takes no arguments and fields/methods are static.

Methods inherited from class java.lang.Object

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

Constructor Detail

ClassDeconstructor

public ClassDeconstructor(java.lang.Class<?> clazz)
                   throws java.io.IOException,
                          java.lang.ClassNotFoundException

Constructor will take the top-level class given as an argument and walk the tree recursively to find all classes and all their members.

Parameters:

clazz -

Throws:

java.io.IOException

java.lang.ClassNotFoundException

Method Detail

addClass

public ClassMembers addClass(java.lang.Class<?> clazz)
                      throws java.io.IOException,
                             java.lang.ClassNotFoundException

Add a class and its members if it does not already exist in the list, otherwise, return the members of the existing entry.

Parameters:

clazz -

Returns:

class members object

Throws:

java.io.IOException

java.lang.ClassNotFoundException

deconstruct

public DeconstructedObjectGraph deconstruct(java.lang.Object topLevelObj)
                                     throws java.lang.IllegalArgumentException,
                                            java.lang.IllegalAccessException,
                                            java.lang.reflect.InvocationTargetException,
                                            java.lang.Exception

Given an instance of the top-level class this ClassDeconstructor was initialized with, deconstruct the object and return a DeconstructedObjectGraph.

Parameters:

topLevelObj -

Returns:

DeconstructedObjectGraph

Throws:

java.lang.IllegalArgumentException

java.lang.IllegalAccessException

java.lang.reflect.InvocationTargetException

java.lang.Exception

getStaticClassInstance

public DeconstructedObject getStaticClassInstance(java.lang.Class<?> clazz)
                                           throws java.lang.InstantiationException,
                                                  java.lang.IllegalAccessException,
                                                  java.io.IOException,
                                                  java.lang.ClassNotFoundException

If an instance of a class which is not in the package of the top-level class package is needed, this method can be used to create and return an instance of that class (assuming the constructor takes no arguments and fields/methods are static.

Parameters:

clazz -

Returns:

DeconstructedObject

Throws:

java.lang.InstantiationException

java.lang.IllegalAccessException

java.io.IOException

java.lang.ClassNotFoundException