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A sample UML class and sequence diagram for the Iterator design pattern. [ 4 ] In the above UML class diagram , the Client class refers (1) to the Aggregate interface for creating an Iterator object ( createIterator() ) and (2) to the Iterator interface for traversing an Aggregate object ( next(),hasNext() ).
UML typically identifies a stereotype with a bracketed comment for each object identifying whether it is a class, interface, etc. These colors were first suggested by Peter Coad , Eric Lefebvre , and Jeff De Luca in a series of articles in The Coad Letter , [1] [2] and later published in their book Java Modeling In Color With UML .
The indirection pattern supports low coupling and reuses potential between two elements by assigning the responsibility of mediation between them to an intermediate object. An example of this is the introduction of a controller component for mediation between data (model) and its representation (view) in the model-view-controller pattern.
In UML, become is a keyword for a specific UML stereotype, and applies to a dependency (modeled as a dashed arrow). Become shows that the source modeling element (the arrow's tail) is transformed into the target modeling element (the arrow's head), while keeping some sort of identity, even though it may have changed values, state, or even class.
Class diagram – A class diagram is a type of static structure UML diagram that describes the structure of a system by showing the system's classes, its attributes, and the relationships between the classes. The messages and classes identified through the development of the sequence diagrams can serve as input to the automatic generation of ...
Code diagrams (level 4): provide additional details about the design of the architectural elements that can be mapped to code. The C4 model relies at this level on existing notations such as Unified Modelling Language (UML) , Entity Relation Diagrams (ERD) or diagrams generated by Integrated Development Environments (IDE) .
It should only contain pages that are Unified Modeling Language diagrams or lists of Unified Modeling Language diagrams, as well as subcategories containing those things (themselves set categories). Topics about Unified Modeling Language diagrams in general should be placed in relevant topic categories .
Adapter Java Design Patterns - Adapter; Delegation, strongly relevant to the object adapter pattern. Dependency inversion principle, which can be thought of as applying the adapter pattern, when the high-level class defines its own (adapter) interface to the low-level module (implemented by an adaptee class). Ports and adapters architecture; Shim