
load objects on demand. No explicit invocations of <code>load</code> method and
overloading <code>recursiveLoading</code> to stop recursion are needed.<P>

Unfortunately it is still not possible to detect modification of the object. 
Although some languages make it possible to redefine object attribute setter method, 
it will not help to detect modification of self components inside instance method. 
So explicit invocation of <code>modify</code> or <code>store</code> methods is needed.<P>

Although delegat