uml

I have a MyServer class that contains a Map whose keys are MyClientType objects and whose values are MyClient objects. I'd like to depict this relationship in a class diagram but I can't figure out a clean way to do that. Kru You can use a qualified association: ┌──────────┐ 1 ┌───────┐ │ MyServer │Key│───────────│ Value │ └──────────┘ └───────┘ See: http://etutorials.org/Programming/UML/Chapter+6.+Class+Diagrams+Advanced+Concepts/Qualified+Associations/ (cause it is hard to draw using ASCII) Note also that a qualified association changes the multiplicity: ┌──────────┐ 0..* ┌───────┐ │

一、学习小结： 1.开始和结束：使用关键字 start 和 stop 表示图示的开始和结束。 @startuml start :Hello world; :This is on defined on several **lines**; stop @enduml 也可以使用 end 关键字。 @startuml start :Hello world; :This is on defined on several **lines**; end @enduml 2.条件语句 ：在图示中可以使用关键字 if ， then 和 else 设置分支测试。标注文字则放在括号中。 @startuml start if (Graphviz installed?) then (yes) :process all\ndiagrams; else (no) :process only __sequence__ and __activity__ diagrams; endif stop @enduml 也可以使用关键字 elseif 设置多个分支测试。 @startuml start if (condition A) then (yes) :Text 1; elseif (condition B) then (yes) :Text 2; stop elseif (condition C) then

In a UML class diagram, what is the difference between an association relationship and a dependency relationship? From what I know, an association is a stronger relationship than a dependency, but I'm not sure how it is stronger. Any example would be more than welcome :) What is the difference between dependency and association? : In general, you use an association to represent something like a field in a class. The link is always there, in that you can always ask an order for its customer. It need not actually be a field, if you are modeling from a more interface perspective, it can just

I was wondering, how can one represent " if " statement on a sequence diagram? if (somethingShouldBeDone) { // Do it } else { // Do something else } Can it be represented at all? The thing is ... in my code, fair amount of conditions are checked to determine a variety of actions. If i am going to show the actions, I'd like to explicitly state that actions are caused by particular events. If possible create an image representation of a solution. GETah If else condition, also called alternatives in UML terms can indeed be represented in sequence diagrams. Here is a link where you can find some

This question already has an answer here: Aggregation versus Composition [closed] 12 answers I have reviewed a lot of information about these things, but can't understand what is the difference between them? In Fowler's UML Distilled says that Aggreagation is strictly meaningless, so author recommends not to use it in diagrams. Explain, please, when I should use each of them and how it will influence on java code. This is a very arguable question. As Martin explains in the answer , the Order aggregates the Product. And this can be considered true. Grady Booch in his "Object-Oriented Analysis

Possible Duplicate: how to drag object I need to draw some UML components (classes, packages etc) using Java 2D and then be able to drag them around. Is there a way to do this? I mean, to make a shape "draggable"? JHotDraw was designed as "a Java GUI framework for technical and structured Graphics." The linked JHotDraw Pattern Language: JHotDraw Domain Overview illustrates how to customize drawing editors. The sample org.jhotdraw.samples.draw.Main is a reasonable starting point, and JModeller is a simple UML editor built using the framework. Are you forced to swing? If not you might have look