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--- principles:law_of_demeter [2021-09-02 12:32] – old revision restored (2021-05-19 11:21) 65.21.179.175
+++ principles:law_of_demeter [2021-10-18 21:52] (current) – +++ restored +++ christian
@@ Line 9: / Line 9: @@
 /* fill in contexts here: */
   * [[contexts:Object-Oriented Design]]
+  * [[contexts:Implementation]]
 ===== Principle Statement =====
@@ Line 52: / Line 52: @@
   * [[Low Coupling]] (LC): The goal of LoD is to reduce coupling by reducing the knowledge of a class about other classes.
-  * [[Tell, Don't Ask/Information Expert]] (TdA/IE)
+  * [[Tell, Don't Ask/Information Expert]] (TdA/IE): LoD is more specific than TdA/IE because TdA/IE can be applied in a wider context (e.g. for responsibility assignment). Applying TdA leads to solutions which are good according to LoD. Note that the reverse is not true: Accoring to LoD you may get and set values from an object passed as a parameter to a method.
 ==== Specializations ====
@@ Line 63: / Line 63: @@
 ==== Complementary Principles ====
+  * [[Model Principle]] (MP): Adhering to LoD may result in additional methods in aggregating classes. MP tells how they should look like.
 ==== Principle Collections ====
-===== Example =====
+===== Examples =====
@@ Line 87: / Line 90: @@
   * Phil Haack: //[[http://haacked.com/archive/2009/07/14/law-of-demeter-dot-counting.aspx|The Law of Demeter Is Not A Dot Counting Exercise]]//
   * [[http://www.ccs.neu.edu/home/lieber/LoD.html|Law of Demeter]]
+===== Discussion =====
+Discuss this wiki article and the principle on the corresponding [[talk:principles:Law of Demeter|talk page]].