Changes between Version 31 and Version 32 of PRO_LIB_CORE_TUTORIAL

Timestamp:

07/09/09 14:26:35 (16 years ago)

Author:

pap

Comment:

--

PRO_LIB_CORE_TUTORIAL

@@ -161 +161 @@
   * '''AutoProperty<T>''':[[BR]]
   This Property is one of the most commonly used and convenient Properties the ProLib offers.[[BR]]
-  Basically this is a Property which has a value which is computed directly from the values of some other Properties. In a way, the developer sets the logic of the computation of the AutoProperty's value in a declarative manner and the actual computation of the value is done automatically. Even more, the when some of the Properties on which the AutoProperty depends change their value, the AutoProperty automatically recomputes its value which is very convenient. This saves the developer the hassle of manually implementing some Observer like functionality in all objects a certain Java field X would logically depend and then manually notifying X when they've changed so X can then be manually forced to recompute.
+  Basically this is a Property which has a value which is computed directly from the values of some other Properties. In a way, the developer sets the logic of the computation of the AutoProperty's value in a declarative manner and the actual computation of the value is done automatically. Even more, when some of the Properties on which the AutoProperty depends change their value, the AutoProperty automatically recomputes its value which is very convenient. This saves the developer the hassle of manually implementing some Observer like functionality in all objects a certain Java field X would logically depend and then manually notifying X when they've changed so X can then be manually forced to recompute.
 
  So, like inside the Rectangle example, the area() AutoProperty is implemented like this: