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1. elements of design 2. 3. elements of design instance initialization enforcing the instance creation instance / class methods instance variables / class instance variables…
s.ducasse makes only sense when network package is loaded bloat your interface with conversion methods for anything s.ducasse conversion methods use conversion methods only
powerpoint presentationevery class eventually inherits from object every class is an instance of a metaclass the metaclass hierarchy parallels the class hierarchy every metaclass
slide 1 smalltalk programação orientada a objetos slide 2 smalltalk a origem do smalltalk slide 3 a primeira linguagem a incorporar facilidades para definir classes de…
from small world to hierarchic business information networks by reorganizations â a real world study of a failure markus christen*, georges bongard+, attila pausitz°,…
1. welcome august 24, 2008 world headquarters cincinnati, ohio - what is new & exciting in cincom smalltalk? arden thomas cincom smalltalk product manager esug 2008 cincom…
8/8/2019 java fir stoop 1/381introduction to oo concepts anduml8/8/2019 java fir stoop 2/382overview introduction to classes and objects introduction to uml features of object…
1.s.ducasse 1 quicktime™ and atiff (uncompressed) decompressorare needed to see this picture. stéphane ducasse [email protected] http://www.listic.univ-savoie.fr/~ducasse/…
1. lsp stéphane ducasse --- 2005 2. 3. a step deeper in subtyping... 4. liskov substitution principle (lsp) if for each object o1 of type s there is another object o2…
1. elements of design - simple smells simple smells 2. basic design mistakes 3. a class should have class person { string getname();void setname(string name); int getage();void…
1. adapter 2. 3. adapter convert the interface of a class into another interface clients expect.adapter lets classes work together that couldn't otherwise because…
1. decorator 2. 3. decorator attach additional responsib ilities to an object dynamically.decorators provide aflexible alternative tosubclassing for extendingfunctionality.…
1. strategy 2. strategy define a family of algorithms,encapsulate each in a separateclass and define each class withthe same interface so that they canbe interchangeable.…
a request to its receiver by giving more than one object a chance to handle the request. chain the receiving objects and pass the request along the chain until an object
1. singleton 2. singleton’s intent ensure that a class has onlyone instance, and provide aglobal point of access to it 3. problem / solution problem : we want a class with…
1. visitor 2. intent : represent an operation to be performed on the elements of an object structure in a class separate from the elements themselves. visitor lets you define…
1. composite 2. source 3. composite intent compose objects into tree structures to represent part-whole hierarchies.composite letsclientstreat individual objects and compositions…
1. design points - law of demeter stéphane ducasse --- 2005 2. about coupling why coupled classes is fragile design? law of demeter thoughts about accessor use 3. coupling…
analgesicos en el adulto mayor prescripción inadecuada en el paciente mayor detección de la prescripción inadecuada aparición de herramientas o documentos de consenso…