Observer information

• Let's step back a moment

• Associated with object A is a list of A's observers

• Where should this list be stored?

• In my opinion, there is a right place and a wrong place

• In general:

• The right place to store information about an object:

  • In the object

• The wrong place to store information about an object:

  • Anywhere else

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Copyright © 2006 M. J. Dominus