Java Doc for TreeObject.java in  » IDE-Netbeans » xml » org » netbeans » tax » Java Source Code / Java DocumentationJava Source Code and Java Documentation

It also prescribes that each subclass MUST have copy constuctor calling its superclass copy constructor. The copy constructor MUST be then called during cloning.

All TreeObject subclasses should not have public contructors and therefore should be created just by factory methods.

Pending: validation on request, invalidation
author:
   Libor Kramolis
author:
   Petr Kuzel
version:
   0.1

Update algorithm pattern that reuses original tree instances:

 // 1.

Update algorithm pattern that reuses original tree instances:

 // 1. optimalization
 if (this == treeObject) return;
 // 2. can merge just my instances (so no cross implemetation merge allowed)
 if (getClass().isAssignablFrom(treeObject.getClass())) throw CannotMergeException;
 // 3. let superclass do its merge
 super.merge(treeObject);
 // 4. cast to myself (see step 2)
 {getClass()} peer = ({getClass()}) treeObject;
 // 5. merge all fields at THIS CLASS HIEARCHY LEVEL but
 // fields that references object "parents"
 // use setters that just fires property changes, i.e. such that never fails
 // due to read-only or other constrains checks
 foreach field in suitableClassFields
 if field is simple
 set{field}Impl( peer.get{field}() )
 if field is collection or TreeObject
 {field}.merge(peer.{field})
 next field