PlantUMLLanguage specificationObject Diagram

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Object Diagram Edit in DokuwikiEdit in AsciidocEdit in Markdown Definition of objects Edit in DokuwikiEdit in AsciidocEdit in Markdown You define instances of objects using the object keyword. 🎉 Copied! @startuml object firstObject object "My Second Object" as o2 @enduml Relations between objects Edit in DokuwikiEdit in AsciidocEdit in Markdown Relations between objects are defined using the following symbols : Type Symbol Image Extension <|-- Composition *-- Aggregation o-- It is possible to replace -- by .. to have a dotted line. Knowing those rules, it is possible to draw the following drawings. It is possible a add a label on the relation, using : followed by the text of the label. For cardinality, you can use double-quotes "" on each side of the relation. 🎉 Copied! @startuml object Object01 object Object02 object Object03 object Object04 object Object05 object Object06 object Object07 object Object08 Object01 <|-- Object02 Object03 *-- Object04 Object05 o-- "4" Object06 Object07 .. Object08 : some labels @enduml Associations objects Edit in DokuwikiEdit in AsciidocEdit in Markdown 🎉 Copied! @startuml object o1 object o2 diamond dia object o3 o1 --> dia o2 --> dia dia --> o3 @enduml Adding fields Edit in DokuwikiEdit in AsciidocEdit in Markdown To declare fields, you can use the symbol : followed by the field's name. 🎉 Copied! @startuml object user user : name = "Dummy" user : id = 123 @enduml It is also possible to group all fields between brackets {}. 🎉 Copied! @startuml object user { name = "Dummy" id = 123 } @enduml Common features with class diagrams Edit in DokuwikiEdit in AsciidocEdit in Markdown Hide attributes, methods... Defines notes Use packages Skin the output Map table or associative array Edit in DokuwikiEdit in AsciidocEdit in Markdown You can define a map table or associative array, with map keyword and => separator. 🎉 Copied! @startuml map CapitalCity { UK => London USA => Washington Germany => Berlin } @enduml 🎉 Copied! @startuml map "Map **Contry => CapitalCity**" as CC { UK => London USA => Washington Germany => Berlin } @enduml 🎉 Copied! @startuml map "map: Map<Integer, String>" as users { 1 => Alice 2 => Bob 3 => Charlie } @enduml And add link with object. 🎉 Copied! @startuml object London map CapitalCity { UK *-> London USA => Washington Germany => Berlin } @enduml 🎉 Copied! @startuml object London object Washington object Berlin object NewYork map CapitalCity { UK *-> London USA *--> Washington Germany *---> Berlin } NewYork --> CapitalCity::USA @enduml [Ref. #307] 🎉 Copied! @startuml package foo { object baz } package bar { map A { b *-> foo.baz c => } } A::c --> foo @enduml [Ref. QA-12934] 🎉 Copied! @startuml object Foo map Bar { abc=> def=> } object Baz Bar::abc --> Baz : Label one Foo --> Bar::def : Label two @enduml [Ref. #307]

Definition of objects Relations between objects Associations objects Adding fields Common features with class diagrams Map table or associative array